tag:blogger.com,1999:blog-87962656665646402012024-02-19T09:10:06.979-08:00Electric SensorsElectric Sensors Data and Electric Sensors devicesmart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comBlogger58125tag:blogger.com,1999:blog-8796265666564640201.post-15013997975075912122010-03-12T04:26:00.000-08:002010-03-12T04:26:05.522-08:00How the Thermal Imager Works and Thermal Imaging Buyers Guide<div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Thermal Imaging - Here's how it works:</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B001DJDHFW&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe>A special lens focuses the infrared light emitted by all of the objects in view. </div><div style="font-family: Arial,Helvetica,sans-serif;">The focused light is scanned by a phased array of infrared-detector elements. The detector elements create a very detailed temperature pattern called a thermogram. It only takes about one-thirtieth of a second for the detector array to obtain the temperature information to make the thermogram. This information is obtained from several thousand points in the field of view of the detector array. </div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">The thermogram created by the detector elements is translated into electric impulses. </div><div style="font-family: Arial,Helvetica,sans-serif;">The impulses are sent to a signal-processing unit, a circuit board with a dedicated chip that translates the information from the elements into data for the display. </div><div style="font-family: Arial,Helvetica,sans-serif;">The signal-processing unit sends the information to the display, where it appears as various colors depending on the intensity of the infrared emission. The combination of all the impulses from all of the elements creates the image. </div><div style="font-family: Arial,Helvetica,sans-serif;"><a href="http://www.morovision.com/how_thermal_imaging_works.htm" rel="nofollow" target="_blank">more</a> </div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
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</div><div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>How the Wahl Thermal Imager Works</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;"><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B002JINUW6&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe>Thermal Imaging is a technique for creating an image of a scene based on the invisible thermal radiation emitted from an object. Using this technology, thermal images of faults in mechanical or electrical plant can be displayed.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">Thermal imaging can be used in any process where the temperature of the object gives an indication of its state not visible to the eye. For example, a loose electrical connection or a worn bearing will heat up. These defects can be seen with a thermal imager as a 'hot spot'.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">The ability to measure the temperature of an overheating component enables the operator to determine the seriousness of the fault, and take corrective action before costly breakdown occurs.</div><div style="font-family: Arial,Helvetica,sans-serif;"><a href="http://www.palmerwahl.com/How%20It%20Works/HeatSpyThermalImager/Thermal%20ImagingHH.pdf" rel="nofollow" target="_blank">more</a> </div><br />
<div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>How to Purchase a Thermal Imaging Camera</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;">Interested in buying an infrared thermal imaging camera but not sure where to start or what to look for when purchasing? Perhaps you want to start an infrared inspection business or need information for purchasing a thermal imaging camera for research, process control, medical, electrical, or other applications?</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">Many factors should be weighed when purchasing an infrared thermal imaging camera. This guide goes over some of the basic factors to be considered as well as tips to purchasing the correct thermal camera for your application.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><b>Thermal Imaging Buyers Guide Contents</b></div><div style="font-family: Arial,Helvetica,sans-serif;">1. General Information</div><div style="font-family: Arial,Helvetica,sans-serif;">2. Qualitative or Qualitative?</div><div style="font-family: Arial,Helvetica,sans-serif;">3. Portable, Fix Mounted, or Pan and Tilt Thermal Imaging Unit?</div><div style="font-family: Arial,Helvetica,sans-serif;">4. Ensure the software has the functions neccessary for your applicaiton.</div><div style="font-family: Arial,Helvetica,sans-serif;">5. Ensure the thermal camera has the built-in features needed for your application.</div><div style="font-family: Arial,Helvetica,sans-serif;">6. Other Considerations and helpful tips.</div><div style="font-family: Arial,Helvetica,sans-serif;"><a href="http://www.infraredcamerasinc.com/Thermal-Imaging-Buying-Guide/Thermal-Imaging-Camera-Buying-Guide-2009.pdf" rel="nofollow" target="_blank">more </a></div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
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</div><div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke Ti32 Industrial-Commercial Thermal Imager Thermography</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;">The first affordable 320 x 240 resolution infrared thermal imager that's rugged enough to withstand a 6.5 foot drop. IR-Fusion® and SmartView® analyzing and reporting software included</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><object height="344" width="425"><param name="movie" value="http://www.youtube.com/v/kjtEMndvS-Q&hl=en_US&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/kjtEMndvS-Q&hl=en_US&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object></div>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-76167439322807421822010-02-16T02:19:00.000-08:002010-03-12T04:19:31.339-08:00Ti32 Industrial-Commercial Thermal Imager Data and Feature<div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke </b></span><span style="font-size: large;"><b>Ti32 Industrial-Commercial Thermal Imager</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">The new Fluke Ti32 combines a powerful 320x240 sensor into the award winning, rugged design of the Ti25 and Ti10, delivering the first industrial grade, high performance thermal imager for industrial and electrical applications. The result is strikingly crisp, detailed images that, blended with our patented IR-Fusion®, are sure to make a lasting impression. For added versatility and special applications, the Ti32 includes two field-swappable, rechargeable batteries. Use the optional telephoto and wide-angle lenses to bring distant and wide views into sharp focus.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
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<div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke Ti32 Thermal Imager Review</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;">Michael Stuart from Fluke talks to Bettina Chang about advances in the newest series of thermal imaging devices, and how those can be put to work in a wide variety of maintenance and diagnostic</div><br />
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<div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke Ti32 Description</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;">The first affordable 320 x 240 resolution infrared thermal imager that's rugged enough to withstand a 6.5 foot drop. IR-Fusion® and SmartView® analyzing and reporting software included with every model. Clear, crisp images find problems fast.</div><div style="font-family: Arial,Helvetica,sans-serif;">Optional wide-angle and telephoto lenses also available.</div><div style="font-family: Arial,Helvetica,sans-serif;">See how to increase the safety and speed of electrical thermography with IR Windows.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke Ti32 Feature</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;">Easy to use </div><div style="font-family: Arial,Helvetica,sans-serif;">• Field replaceable batteries give you maximum flexibility no matter where your work takes you.</div><div style="font-family: Arial,Helvetica,sans-serif;">• Intuitive, three-button menu is easy to use—simply navigate with the push of a thumb.</div><div style="font-family: Arial,Helvetica,sans-serif;">• No need to carry pen and paper—record findings by speaking into the imager. Voice annotations can be recorded with every image you take. Voice comments are saved along with individual images for future reference.</div><div style="font-family: Arial,Helvetica,sans-serif;">• One-handed focus capability, emissivity correction, reflected background temperature compensation, and transmission correction increase the accuracy of measurements in most situations.</div><div style="font-family: Arial,Helvetica,sans-serif;">• Adjustable hand strap for left-or right-handed use.</div><div style="font-family: Arial,Helvetica,sans-serif;">• Everything needed to get started is included.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
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</div><div style="font-family: Arial,Helvetica,sans-serif;">Superior image quality </div><div style="font-family: Arial,Helvetica,sans-serif;">• Delivers the clear, crisp images needed to find problems fast with its 320x240 sensor.</div><div style="font-family: Arial,Helvetica,sans-serif;">• Identify even the smallest temperature differences that could indicate problems with industry-leading thermal sensitivity (NETD).</div><div style="font-family: Arial,Helvetica,sans-serif;">• Automatic alignment (parallax correction) of visual and infrared images with Fluke patented IR-Fusion®</div><div style="font-family: Arial,Helvetica,sans-serif;">• Optional telephoto and wide angle lenses available for added versatility and special applications. (easily installable in the field)</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><span style="color: #0b5394;">Buy Cheap Ti32 Industrial-Commercial Thermal Imager</span></span> <br />
<iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B0013Y1NB2&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B0013XUJUE&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe></div>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-13094889437879192212010-02-13T02:15:00.000-08:002010-02-13T02:15:59.438-08:00Fluke 421D Laser Distance Meter Data and Feature<div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b><br />
</b></span></div><div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke 421D Laser Distance Meter </b></span></div><div style="font-family: Arial,Helvetica,sans-serif;">Laser distance measurement that takes you even farther. The NEW 421D just made the laser distance meter family from Fluke even better. Now measure up to 100 m (330 ft) with 1/16 accuracy. Advanced features like built-in tilt sensor for hard to reach areas, and stack out to let you make incremental measurements, give you a powerful tool for those tough measurement jobs</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">These meters offer the most advanced laser technology for distance measurement. </div><div style="font-family: Arial,Helvetica,sans-serif;">• Instant measurement with one-button operation </div><div style="font-family: Arial,Helvetica,sans-serif;">• Easy targeting with bright laser </div><div style="font-family: Arial,Helvetica,sans-serif;">• Quick calculation of area and volume </div><div style="font-family: Arial,Helvetica,sans-serif;">• Easy addition and subtraction of measurements </div><div style="font-family: Arial,Helvetica,sans-serif;">• Designed for indoor and outdoor use.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke 421D Description </b></span></div><div style="font-family: Arial,Helvetica,sans-serif;">Want to determine the distance between two objects? Need to calculate area or volume? No need to learn how to read a tape measure or ruler, the Fluke Laser distance meters do the work for you. </div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">Fluke introduces a full line of Laser Distance Meters. The Fluke 421D, 416D and 411D are professional-grade laser distance meters — they’re fast, easy to use, and they fit on your tool belt. These meters will save you effort and money by reducing measurement time and errors! </div><div style="font-family: Arial,Helvetica,sans-serif;">Use Fluke laser distance meters to quickly and accurately determine the distance to your target, the area bounded by two distances, or the volume within three measurements: </div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">• Reduce estimation errors, saving time and money</div><div style="font-family: Arial,Helvetica,sans-serif;">• Instant measurements of the distance between two objects with one-button operation</div><div style="font-family: Arial,Helvetica,sans-serif;">• Quick calculations of distance formulas such as area (square feet/meters) and volume</div><div style="font-family: Arial,Helvetica,sans-serif;">• .Easy performance of distance addition and subtraction calculations</div><div style="font-family: Arial,Helvetica,sans-serif;">Laser distance meters are better than ultrasonic devices because they use laser light waves and measure their reflection to accurately determine distances: </div><div style="font-family: Arial,Helvetica,sans-serif;">• Most advanced technology for measuring distances</div><div style="font-family: Arial,Helvetica,sans-serif;">• More accurate and measure longer distances</div><div style="font-family: Arial,Helvetica,sans-serif;">• Confidently measure up to 60 m (200 ft) with the 416D and 100 m (330 ft) with the 421D with an accuracy of 1.5 mm (1/16 in)</div><div style="font-family: Arial,Helvetica,sans-serif;">• Rugged and reliable as customers expect from Fluke products</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #38761d; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke 421D Feature</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;">The 421D, 416D and 411D laser distance meters offer: </div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">• Reduction of estimation errors, saving both time and money</div><div style="font-family: Arial,Helvetica,sans-serif;">• The most advanced laser technology for distance measurement</div><div style="font-family: Arial,Helvetica,sans-serif;">• Instant measurements of the distance between two objects with one-button operation</div><div style="font-family: Arial,Helvetica,sans-serif;">• Easy targeting with bright laser</div><div style="font-family: Arial,Helvetica,sans-serif;">• Measurement to 30 m (100 ft) with accuracy of 3 mm (0.12 in)</div><div style="font-family: Arial,Helvetica,sans-serif;">• Quick calculations of distance formulas such as area (square feet/meters) and volume</div><div style="font-family: Arial,Helvetica,sans-serif;">• Easy performance of distance addition and subtraction calculations</div><div style="font-family: Arial,Helvetica,sans-serif;">• Pythagoras function for indirect measurement via two other measurements</div><div style="font-family: Arial,Helvetica,sans-serif;">• Improved battery life from automatic shut-off feature</div><div style="font-family: Arial,Helvetica,sans-serif;">• Display holds for easier viewing in hard-to-reach areas</div><div style="font-family: Arial,Helvetica,sans-serif;">• Batteries: two AAA</div><div style="font-family: Arial,Helvetica,sans-serif;">• Carrying pouch to secure on tool belt</div><div style="font-family: Arial,Helvetica,sans-serif;">• Two-year warranty</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
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</div><div style="color: #0b5394; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Buy cheap Fluke 421D Laser Distance Meter </b></span></div><div style="color: #0b5394; font-family: Arial,Helvetica,sans-serif;"><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B001NGPBP4&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B001NGPBOU&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe></div>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-77195059245185602412010-02-10T06:57:00.000-08:002010-02-10T06:57:45.803-08:00Buy Graet Price Fluke 1AC-A1-II Volt-Alert AC Non-Contact Voltage Tester<div style="color: #6aa84f; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke 1AC-A1-II Volt-Alert AC Non-Contact Voltage Tester</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;"><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B000EJ332O&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe></div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><b>Technical Details</b></div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">* Voltbeat technology and continuous self-test - so you always know it is working</div><div style="font-family: Arial,Helvetica,sans-serif;">* Upon detection, tip glows and beeper sounds</div><div style="font-family: Arial,Helvetica,sans-serif;">* CAT IV 1000 V for added protection</div><div style="font-family: Arial,Helvetica,sans-serif;">* Expanded range: 90-volt to 1000-volt AC or 200-volt to 1000-volt AC depending on model</div><div style="font-family: Arial,Helvetica,sans-serif;">* 20-volt to 90-volt AC control circuit model also available</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #6aa84f; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Product Description</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><b>Fulke us</b></div><div style="font-family: Arial,Helvetica,sans-serif;">Non-contact voltage detector you can rely on.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">1AC-I is the latest product in the VoltAlert™ ac non- contact voltage tester family from Fluke and is designed to be pocket-sized and easy to use. Just touch the tip to a terminal strip, outlet, or cord. When the tip glows red you know there's voltage in the line. Electricians, maintenance, service and safety personnel, as well as DIY, can quickly test for energized circuits and defective grounds on the factory floor, in the shop, or at home. </div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><b>Amazon.com Product Description</b></div><div style="font-family: Arial,Helvetica,sans-serif;">Simply touch the tip to a terminal strip, outlet or cord. When the tip glows red, and the unit beeps, you know there's voltage in the line. Electricians, maintenance, service, safety personnel can quickly test for energized circuits and defective grounds on the factory floor, in the shop. Continually tests its battery and its circuit integrity with a periodic double flash visual indication using Fluke Voltbeat technology. It comes with a two-year warranty. It detects line voltage from 90VAC - 600VAC (1AC-AI-II).</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><b>From the Manufacturer</b></div><div style="font-family: Arial,Helvetica,sans-serif;">The next generation-voltAlertAC non-contact-voltage testers from Fluke are easy to use - just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know-voltage is present. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home. </div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #3d85c6; font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b>Fluke 1AC-A1-II Volt-Alert Customer Reviews</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #6fa8dc; font-family: Arial,Helvetica,sans-serif;"><b>By Elixirgy (California) </b></div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">I work in a remodeling business, and this is an indispensable tool. I repeat, indispensable. The tip simply lights up when you touch it to the "hot" side of a Romex wire, instantly telling you if a wire is live or not. "Is this switch/receptacle that I'm about to take apart and work on/touch hot??" Well, now you know. It is important to use it for what it's designed for. It will not tell you if there is an open neutral or anything of the sort, so it's only good for minor troubleshooting (you'd need a Knopp, or something more specialized for that). If anything, it will err on the "hot" side. I.E: It will occasionally tell me a line is hot when it isn't (if there is allot going on in a box, or near dimmers etc.), but I've never had it tell me a wire was NOT hot, and get zapped by it (unless you touch the neutral side of a romex, but that would be your fault for not checking both sides of it! : )</div><div style="font-family: Arial,Helvetica,sans-serif;">So, for everyday work in the remodeling world, tracing wires, eliminating, and adding switches and receptacles, it can't be beat. It's tough, handy, quick and useful. A++</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="color: #6fa8dc; font-family: Arial,Helvetica,sans-serif;"><b>By E. Cole </b></div><div style="font-family: Arial,Helvetica,sans-serif;">Fine quality tool typical of Fluke.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">The switch on this tester is much better than that found on the Greenlee tester. I am often working in cramped, dark areas and require a solidly built tester that doesn't suffer from inadvertent switch movement-a problem with the Greenlee and similar devices.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">This tester, like every other non-contact (NC) tester I have used, will occasionally provide a "false positive" indication. This is often caused by an errant voltage present on a cable which is laying near an energized cable. This is due to inductance is is probably unavoidable with a NC device.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">This is one of the best tool investments you can make-absolutely essential for electrical, plumbing, remodeling, or demolition. Work safely; always test it on an energized conductor and verify proper operation before use on unknown cables.</div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;">Highly recommended! </div><div style="font-family: Arial,Helvetica,sans-serif;"><br />
</div><div style="font-family: Arial,Helvetica,sans-serif;"><span style="font-size: large;"><b style="color: #134f5c;">Buy Fluke AC Non-Contact Voltage Tester</b></span></div><div style="font-family: Arial,Helvetica,sans-serif;"><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B000VRCSN4&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B000R7ZA1K&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe></div>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-71361003067387828512010-01-18T01:05:00.000-08:002010-02-11T00:12:16.932-08:00Car oxygen sensor replacement Data<span style="font-family: arial; font-size: 130%;"><span style="color: #33cc00; font-weight: bold;">How To Replace Oxygen Sensor </span></span><br />
<span style="font-family: arial;">Ok, so you want to know how to replace your oxygen sensor eh? That's understandable. If you have been told that your oxygen sensor is bad or faulty, it will need to be replaced, and what better way to do that than by doing it yourself. Most mechanics will call this the DIY method, and it can be done with a few basic tools.</span><br />
<div style="font-family: arial;"></div><div style="font-family: arial;">What you will need:</div><div style="font-family: arial;">*An adjustable Crescent Wrench<br />
*A Flat tip Screw Driver<br />
*A New Oxygen Sensor</div><div style="font-family: arial;">Now, because this is an article written on the general process of removing an oxygen sensor, remember that each vehicle is different and could have other things that need to be removed or replaced along the way.</div><div style="font-family: arial;">Step One: Locate your Oxygen Sensor</div><div style="font-family: arial;">On most vehicles, you will find your Oxygen Sensor located on your exhaust somewhere. On front wheel drive vehicle you will often find it on the front side of the engine when you open the hood. On rear wheel drive engines you will most likely find it located under the car right below the donut gasket. <a href="http://www.articlesbase.com/cars-articles/how-to-replace-oxygen-sensor-1110087.html" rel="nofollow" target="_blank">more </a><br />
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<span style="font-size: 130%;"><span style="color: #33cc00; font-weight: bold;">Car Oxygen Sensor Solutions </span></span><br />
Virtually every car produced since the early 1980s contains a sensor that regulates oxygen flow to your engine. The oxygen sensor works by sending information to your vehicle's engine management system to help your car fun efficiently as well as to reduce noxious emissions. When an oxygen sensor fails your vehicle will run less effectively and devour more fuel. Thus, when oxygen sensor failure has been determined the sensor must then be replaced, a costly proposition if you rely on a garage to do the work for you. However, replacing an oxygen sensor is a task that you can do yourself, thereby saving you precious time and money. Let's take a closer look at just what an oxygen sensor does and the steps you can take to do the work yourself. <a href="http://ezinearticles.com/?Oxygen-Sensor-Solutions&id=98641" rel="nofollow" target="_blank">more</a><br />
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<span style="font-size: 130%;"><span style="color: #33cc00; font-weight: bold;">How to Replace Your Car's Oxygen Sensor </span></span><br />
The oxygen sensor (O.S) is a part of modern day electronic fuel injection systems and is essential in helping determine the precise amount of fuel needed for the engine to run efficiently. When this sensor fails, the vehicle will run in "open-loop" mode and will cause the vehicle to run much richer than necessary, which will waste more gasoline than is needed. It works by comparing ambient air with the amount of air inside the exhaust and then informs the engine control unit how rich or how lean the engine is running. The engine control unit can then command the fuel injectors to inject more or less fuel in the engine. It fails over time due to soot that coats the part and skews the reading. Another problem area in modern sensors is the (OS)heater. <a href="http://ezinearticles.com/?How-to-Replace-Your-Vehicles-Oxygen-Sensor&id=3327992" rel="nofollow" target="_blank">more </a><br />
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<span style="font-size: 130%;"><span style="color: #33cc00; font-weight: bold;">Tips For Recycling Your Car Oxygen Sensor </span></span><br />
Is it feasible to clean oxygen sensors and reuse them? We've tried exploring this option as an alternative to replacing these censors. <a href="http://ezinearticles.com/ezinepublisher/?id=1416215" rel="nofollow" target="_blank">more</a><br />
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How to replace the O2 Sensor Video<br />
I show you how to replace your O2 Sensor. This is being performed on a 1997 Chevy Tahoe. Automotive oxygen sensors, colloquially known as O2 sensors, make modern electronic fuel injection<br />
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Car Oxygen Sensor Repair Video<br />
I do not know the proper way to describe this, but if you are a visual learner I can guarantee that this video will help you in your quest to replace your busted O2 sensor.<br />
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How to Change an Car Oxygen Sensor Video<br />
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<object height="344" width="425"><param name="movie" value="http://www.youtube.com/v/LFR8Numjy7M&hl=en_US&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/LFR8Numjy7M&hl=en_US&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object></div><div style="font-family: arial;"><br />
</div><div style="color: #0b5394; font-family: arial;"><span style="font-size: large;"><b>Buy Great Price Car oxygen sensor</b></span></div><div style="color: #0b5394; font-family: arial;"><br />
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</div>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-78713214284052370402010-01-07T06:22:00.000-08:002010-02-11T00:13:35.174-08:00Car Oxygen Sensors Data<span style="color: #009900; font-family: arial; font-weight: bold;">Bad Car Oxygen Sensors </span><br />
<span style="font-family: arial;">On most all gasoline powered cars and trucks manufactured since the late 1970's there is a very small yet very important part that is located in the exhaust stream, known as the Oxygen Sensor. It is commonly referred to by automotive technicians as the O2 Sensor. This little part looks like a spark plug in a way, as it is threaded on one end, but it has a wire with a connector on the end opposite the threaded end. The threaded end is screwed directly into the exhaust stream on the engine side of the catalytic converter. </span><a href="http://electric-sensors.blogspot.com/2009/12/bad-oxygen-sensors.html" style="font-family: arial;">more</a><br />
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<span style="color: #33cc00; font-family: arial; font-weight: bold;">Optimizing Fuel Economy With Sophisticated Pontiac Car Oxygen Sensors</span> <br />
<span style="font-family: arial;">Automotive engine is a complex arrangement of system of machine operations that aims to establish fuel efficient operations. Designed to deliver powerful engine performance, Pontiac rides have been engineered to impress you with its great navigation and driving safety capabilities. By incorporating the use of advanced automotive engineering, your Pontiac investment surely meets your performance expectations. The secret to its unmatched riding and driving quality lie on the functionality and service of its electronic engine sensors. Engine sensors are employed to effectively keep you posted on the actual working conditions of your engine and its components. With computer assisted engine assemblies, electronic sensors are automated so timely adjustments to critical factory performance settings will be made. To continually enjoy fuel efficient combustion operations, your engine is equipped with top of the line Pontiac Oxygen sensor application to maintain excellent fuel efficiency status. As the name implies, it precisely measures the oxygen proportion of your engine’s yielded air-fuel ratio. Because the date is the most accurate way of determine how clean and efficient fuel is burnt, engine sensors are directly wired to the engine control unit (ECU) where necessary adjustments to combustion operations is determined. This way, the metered amounts of fuel delivered by fuel injection system is immediately adjustment to have lesser emission and therefore less fuel wastage. </span><a href="http://www.articlesbase.com/automotive-articles/optimizing-fuel-economy-with-sophisticated-pontiac-oxygen-sensors-216052.html" rel="nofollow" style="font-family: arial;" target="_blank">more </a><br />
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<span style="color: #33cc00; font-family: arial; font-weight: bold;">Tips for Recycling Your Car Oxygen Sensor </span><br />
<span style="font-family: arial;">Car Oxygen sensors are found in the exhaust system of cars, where they're exposed to fuel and other toxic gases such as HC, CO and NO2. These substances can pollute the sensor and hinder its capacity to work efficiently. Oil, fuel and coolant contamination can cause damage as well. Excessive soot buildup in the sensor's ceramic parts can increase response time and consequently decrease its capacity to detect oxygen efficiently.</span><br />
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<span style="font-family: arial;">The presence of lead in poor quality gasoline also decreases the life span of oxygen sensors. Exposure to silicates and silicones also hinders their ability to function correctly. Because the sensor's function is to determine the best ratio of fuel and air mixture in the car's exhaust system, contamination can cause the gas combustion engine to run rich (with unburnt fuel) or lean (with excess oxygen). This can decrease the car's mileage. </span><a href="http://www.articlesbase.com/cars-articles/tips-for-recycling-your-car-oxygen-sensor-512091.html" rel="nofollow" style="font-family: arial;" target="_blank">more</a><br />
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<span style="color: #33cc00; font-family: arial; font-weight: bold;">Accurate Air-fuel Ratio is Done by the Saturn Car Oxygen Sensor </span><br />
<span style="font-family: arial;"> Modern cars today have been equipped with the genius of the oxygen sensors. Saturn, a car company that is young at its early twenties, has proved its rightful place in the automotive industry by producing high-quality oxygen sensors. They have developed these complex components through the innovative car technology that reflects in their resume as a car company. Thus, their Saturn Oxygen Sensor promises only accurate measurements of air-fuel ratio to further help the driver with his car's needs.</span><br />
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<span style="font-family: arial;">The Saturn Oxygen Sensor is a part of the emissions control system and feeds data to the engine management computer. The goal of the sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. A gasoline engine burns gasoline in the presence of oxygen. It turns out that there is a particular ratio of air and gasoline that is ""perfect,"" and that ratio is 14.7:1 (different fuels have different perfect ratios---the ratio depends on the amount of hydrogen and carbon found in a given amount of fuel). </span><a href="http://www.articlesbase.com/automotive-articles/accurate-airfuel-ratio-is-done-by-the-saturn-oxygen-sensor-198614.html" rel="nofollow" style="font-family: arial;" target="_blank">more</a> <br />
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<span style="color: #33cc00; font-family: arial; font-weight: bold;">The Car O2 Sensor and You: Why You Need </span><br />
<span style="font-family: arial;">Them Modern vehicles are much more complex than their predecessors. Numerous additions have been made to increase fuel economy, as well as to decrease emissions. One of these things is the O2 sensor. All modern cars have at least one sensor, though most have two and several have four sensors. These sensors are located at various points in the exhaust system and play a vital role in both fuel economy and emission regulation.</span><br />
<div style="font-family: arial;"></div><div style="font-family: arial;">For the tuner, Car O2 sensors can be huge pain in the behind. Custom exhausts are a great way to add power and performance to your vehicle. Unfortunately, you can find yourself without a place for your oxygen sensors if you don't buy the right type of pipes and headers. Typically, one sensor will be mounted on the exhaust manifold gasket (which is replaced by the header) and the other will be placed midway down the exhaust pipe, usually just before the catalytic converter.<a href="http://www.articlesbase.com/cars-articles/the-o2-sensor-and-you-why-you-need-them-510715.html" rel="nofollow" target="_blank"> more </a><br />
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<span style="color: #33cc00; font-weight: bold;">The Real Deal with Oxygen Sensors </span><br />
An oxygen sensor is a vital part of your Suzuki vehicle. After all, it is mainly one of the important parts responsible for keeping a vehicle’s gas mileage low. According to manufacturers of oxygen sensors, this part of the vehicle is one of the key components of the total performance of a vehicle. <a href="http://ezinearticles.com/?The-Real-Deal-with-Oxygen-Sensors&id=181081" rel="nofollow" target="_blank">more</a><br />
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<span style="color: #33cc00; font-weight: bold;">Best MPG - How Car Oxygen Sensors Work to Save Gas </span><br />
Did you know that a modern car is more sophisticated than a Formula 1 racer? Regulations within F1 had made sure that its drivers are the centerpiece of the race and not the technology. On the other hand, for everyday car consumers, the technology plays a large part in the buying decision of a car consumer. <a href="http://ezinearticles.com/?Best-MPG---How-Oxygen-Sensors-Work-to-Save-Gas&id=1382124" rel="nofollow" target="_blank">more</a></div><div style="font-family: arial;"><br />
</div><div style="font-family: arial;"><span style="font-size: large;"><b style="color: #0b5394;">Buy Cheap Car Oxygen Sensors</b></span></div><div style="font-family: arial;"><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B000BZEI5C&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B000BZG72E&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe><br />
</div>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-65547794996366404532009-12-22T01:06:00.000-08:002010-02-11T00:15:40.016-08:00Bad Oxygen Sensors<b style="font-family: arial;">Author: <a href="http://www.articlesbase.com/authors/monty-carlos/272564.htm" title="Monty Carlos">Monty Carlos</a></b><br />
<div style="font-family: arial;">On most all gasoline powered cars and trucks manufactured since the late 1970's there is a very small yet very important part that is located in the exhaust stream, known as the Oxygen Sensor. It is commonly referred to by automotive technicians as the O2 Sensor. This little part looks like a spark plug in a way, as it is threaded on one end, but it has a wire with a connector on the end opposite the threaded end. The threaded end is screwed directly into the exhaust stream on the engine side of the catalytic converter.</div><div style="font-family: arial;">This little component is the most neglected part on most vehicles, and is responsible for a myriad of engine performance and drivability issues, as well as poor gas mileage when it goes bad. If you own a gasoline powered vehicle and you know that this little gem has not been changed in the last 40,000 miles, no matter what make or model you have, just change it. You'll be glad you did.</div><div style="font-family: arial;">The Oxygen Sensor is the heart and soul of all computerized fuel delivery systems. The Oxygen Sensor does just what its name states, it senses the oxygen content in your engines exhaust. It measures the oxygen level coming out of the exhaust and sends a signal to the vehicles computer that will in turn send a signal to the fuel injectors, telling them to pulse more fuel to go richer, or to pulse less fuel and go leaner. It simply makes sure that your engine is attaining complete combustion of the fuel by maintaining a 14.7:1 air to fuel ratio. When this happens the only thing that should come out of your tailpipe is Oxygen and Water, which are the only byproducts of complete combustion.</div><div style="font-family: arial;">Whether you are a novice mechanic that likes to change your own parts, or you're the type of person that has a mechanic that takes care of your issues, do not overlook this inexpensive part. And if your gas mileage isn't what it used to be, or your engine surges and hesitates, change the O2 Sensor whether your think it's bad or not before you do any other expensive diagnostic testing, because 9 times out of 10 it will fix your problem. Be sure to change the oil right after installing a new O2 Sensor, as if the sensor was bad and the engine was running rich, then your crankcase will surely have a lot of fuel mixed with the oil.</div><b style="font-family: arial;">About the Author:</b><br />
<div style="font-family: arial;">Make sure your vehicle gets regular service and don't drive around with a bad oxygen sensor. Stay on top of things with a little insight form the authors Blog Site - <a href="http://autorepairripoffs.blogspot.com/" target="_blank">http://autorepairripoffs.blogspot.com/.</a><br />
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</div><div style="font-family: arial;">Article Source: <a href="http://www.articlesbase.com/automotive-articles/bad-oxygen-sensors-1462626.html" title="Bad Oxygen Sensors">Bad Oxygen Sensors</a></div><div style="font-family: arial;"><br />
</div><div style="font-family: arial;"><span style="font-size: large;"><b style="color: #0b5394;">Buy Best Price Oxygen Sensors</b></span></div><div style="font-family: arial;"><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B000C5WCUE&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe><iframe align="left" frameborder="0" marginheight="0" marginwidth="0" scrolling="no" src="http://rcm.amazon.com/e/cm?t=electritransf-20&o=1&p=8&l=bpl&asins=B000C5SG54&fc1=000000&IS2=1&lt1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifr" style="height: 245px; padding-right: 10px; padding-top: 5px; width: 131px;"></iframe></div>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-57059862940506124672009-12-18T20:46:00.000-08:002009-12-18T20:47:34.717-08:00Safety Sensors<strong style="font-family: arial;">Author: <a title="Leon Cowper" href="http://www.articlesbase.com/authors/leon-cowper/264366.htm">Leon Cowper</a></strong><br /><p style="font-family: arial;">Technological developments are making the use of safety sensors in our household appliances more common and compulsory. The popularity of these sensors has been in its turn increasing their capabilities and rendering them more economical.</p> <p style="font-family: arial;"><strong>Usage of sensors in day to day household appliances</strong></p> <p style="font-family: arial;">Believe it or not, <a href="http://www.control-logic.com.au/">safety sensors</a> are being used all around you for various safety detections. Washing machines incorporate it to ensure safe washing process.<span style="font-weight: bold;"> Temperature sensors</span> are used in the kitchen. <span style="font-weight: bold;">Magnetic sensors</span> are used for detecting limits. <span style="font-weight: bold;">Gas sensors</span> are used to detect any leakages well in time. Then there are <span style="font-weight: bold;">pressure sensors</span>,<span style="font-weight: bold;"> position sensors</span> and even <span style="font-weight: bold;">UV sensors</span>. These find usage in different ways in our day to day life, in order to protect you from any incidental or major hazard.</p> <p style="font-family: arial;"><strong>Role of sensors in improving household appliances</strong></p> <p style="font-family: arial;">Increasingly, experts from all fields, including engineers, technicians, developers and scientists, are focusing on possible usages of modern sensors in household appliances. Any developments in this connection would result in safer, more efficient and more intelligent machines. The underlying objective would remain to simplify the process and make the user experience comfortable, safe and wasting the least amount of energy and relevant resources. Of course, the concern of motor protection is also there. For example, the research goes on to improvise washing machines so that they use less detergent, less water and less electricity. The machine provides excellent results in the safest manner and for a longer time.</p> <p style="font-family: arial;">In the end, modern sensors are an advantage of technology that detect any unsafe conditions and give necessary signal so the user stays safe from any harm. Look up <a href="http://www.control-logic.com.au/"></a><a href="http://www.control-logic.com.au/" target="_blank">www.control-logic.com.au</a> for safe, economical and reliable safety sensors.</p><strong style="font-family: arial;">About the Author:</strong><br /><p style="font-family: arial;">Leon Cowper has been selling electrical components and supplies through his store since 1996. Today he is an expert on all types of products and companies in the field.</p><p style="font-family: arial;">Article Source: <a href="http://www.articlesbase.com/electronics-articles/safety-sensors-1559901.html" title="Safety Sensors">Safety Sensors</a></p>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-80265544088188708202009-12-16T08:10:00.000-08:002009-12-16T08:11:45.753-08:00technorati<span class="status">MCUJRF4GWVHB</span>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-4447436944502238102009-12-16T07:43:00.000-08:002009-12-16T07:44:48.127-08:00Thermal Imaging Scope - FLIR Thermalvision<strong style="font-family: arial;">Author: <a title="Arthor Pens" href="http://www.articlesbase.com/authors/arthor-pens/61022.htm">Arthor Pens</a></strong><br /><p style="font-family: arial;">A thermal imaging scope has a wide range of uses and this technology is currently being utilized in areas such as fire fighting, power line maintenance, building construction, the military and even in some luxury cars. A thermographic camera can be very similar to a modern camcorder in both operation and appearance and enables the user to see in the infrared spectrum. This technology will detect temperature changes in objects as well as heat patterns. A thermal imaging scope us useful in helping to discover problems before they become too costly for repair and can also be used to monitor existing problems allowing vital maintenance to be scheduled at convenient times. Many cameras equipped with a thermal imaging scope have the ability to record as an option, allowing for later viewing.<br /><br />Fire fighters often use a thermal imaging scope to enable them to see through smoke which save precious time when attempting to find people in burning and smoke filled buildings. It can also be useful in localizing the base of a fire. Power line maintenance can be costly and dangerous if problems are not detected early. A thermal imaging scope enables power line technicians to locate joints that are overheating alerting them to signs of failure thus eliminating potential hazards.<br /><br />A thermal imaging scope is a useful tool in the construction industry for detecting heat leaks. If thermal insulation develops faults, technicians can easily see these thermal signatures allowing them to improve the efficiencies of a cooling or heating system. The technology of a thermal imaging scope is also being used to enhance the safety of some cars. This system gives the driver vital visual information that goes well beyond the normal range of the typical headlamp as well as being able to see past the glare of on coming headlamp's giving the drive more time to react to potential hazards. The maintenance of electrical and mechanical systems in industry and commerce are greatly enhanced by using the technology of a thermal imaging scope. Capturing images, using the camera settings, can detect problems such as steam traps in heating systems enabling technicians to conduct repairs in a time and cost effective manner.<br /><br />A thermal imaging scope is widely used in the military and other protection agency services. It has many positive useful applications in the areas of homeland security and defense, law enforcement, tactical military operations, border and coast patrol, anti-terrorism, nuclear and critical facility surveillance to name but a few. There are numerous models of cameras that come equipped with a thermal imaging scope such as the SPI Flir thermalvision camera scope which is compact and state of the art in thermal image viewing. It is a completely weather resistant system and utilizes US military standard eye cups. Other models can compensate for most any environmental conditions by using a unique scope with a floating reticule. Features such as digital zoom and user interface make these cameras a strong and sound piece of equipment in many surveillance applications.<br /><br />The technology used in a thermal imaging scope has many useful applications in a wide range of areas such as homeland security, policing, industry, commerce and personal uses such as hunting. Cameras equipped with a thermal imaging scope are now compact, user friendly and extremely versatile.<br /></p><strong style="font-family: arial;">About the Author:</strong><br /><p style="font-family: arial;">The Author - <a href="http://www.thermalimagingscope.com/">Thermal Imaging Scope Expert</a></p><p style="font-family: arial;">Article Source: <a href="http://www.articlesbase.com/electronics-articles/thermal-imaging-scope-flir-thermalvision-1570009.html" title="Thermal Imaging Scope - FLIR Thermalvision">Thermal Imaging Scope - FLIR Thermalvision</a></p>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-47001453170834054032009-07-25T22:34:00.000-07:002009-11-28T02:34:48.289-08:00Video Introduction to Inductive Touch SensingIntroduction to mTouch Inductive Touch Sensing Part 1 of 2<br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/nIojH5y69Gw&hl=en&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/nIojH5y69Gw&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br />Introduction to mTouch Inductive Touch Sensing Part 2 of 2<br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/9P9oELAAErg&hl=en&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/9P9oELAAErg&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br />Microchip Inductive touch demo<br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/ydt05PrTWaE&hl=en&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/ydt05PrTWaE&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-9617821124428649752009-07-18T01:43:00.000-07:002009-11-28T02:26:22.030-08:00Capacitance Touch Switch Sensor Video<span style="font-weight: bold;font-family:arial;" >Introduction to mTouch Capacitive Touch Sensing Part 1 Video</span><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/JVRuDY4X88M&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/JVRuDY4X88M&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-weight: bold;font-family:arial;" >Introduction to mTouch Capacitive Touch Sensing Part 2 Video</span><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/vAJWtbp9kA8&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/vAJWtbp9kA8&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-weight: bold;font-family:arial;" >Introduction to mTouch Capacitive Touch Sensing Part 3 Video</span><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/ABfBdn598tI&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/ABfBdn598tI&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-weight: bold;font-family:arial;" >Capacitive mTouch™ Sensing Solutions: Design Guidelines - Part 1 Video</span><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/6neRIPmHhVE&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/6neRIPmHhVE&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-weight: bold;font-family:arial;" >Capacitive mTouch™ Sensing Solutions: Design Guidelines - Part 2 Video</span><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/cgEJh4mqXkw&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/cgEJh4mqXkw&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-weight: bold;font-family:arial;" >Demo of mTouch Sensing Solutions Video</span><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/4jCdp9Tb3xQ&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/4jCdp9Tb3xQ&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-weight: bold;font-family:arial;" >PICDEM™ Touch Sense 2 Demo Board Video</span><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/mIcjqC6gplc&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/mIcjqC6gplc&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-weight: bold;font-family:arial;" >Microchip MTouch Capacitive Sensing Total Crash Video</span><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/_gL2VhAPEbA&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/_gL2VhAPEbA&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-20276673012411422242009-07-09T02:16:00.000-07:002009-11-28T02:26:32.200-08:00Basic and Application Infrared Sensor Video<span style="font-family: arial; font-weight: bold;">Infrared LEDs</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/U_UE3s9edVo&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/U_UE3s9edVo&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">Infra Red Passive Sensor Test</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/d3t9DJkW8ZM&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/d3t9DJkW8ZM&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">Infrared Sensor beta</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/9huQeyoDpLU&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/9huQeyoDpLU&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">Sensor IR</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/Q6Lej-xYp1U&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/Q6Lej-xYp1U&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">Sensor IR de distancia</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/vvSAyGQH0nI&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/vvSAyGQH0nI&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">Low Cost IR Sensor</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/szi3mGS9rtM&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/szi3mGS9rtM&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">IR LED controll 555/556 timer IC</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/jbOhPJxSDUY&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/jbOhPJxSDUY&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-25110956606390553252009-07-04T02:14:00.000-07:002009-11-28T02:26:12.418-08:00PIR (Passive Infrared Sensor) Sensor Video<span style="font-family: arial; font-weight: bold;">My new and improved PIR (Passive Infrared Sensor) Circuit</span><br /><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/y-9J6CRP-jI&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/y-9J6CRP-jI&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><br /><span style="font-family: arial; font-weight: bold;">PIR tracker prototype</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/dGOgCnlizgU&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/dGOgCnlizgU&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">PIR tracker prototype 2</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/ZP2s7c2EENw&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/ZP2s7c2EENw&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">PIR tracker prototype 3</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/uoS078QHwSE&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/uoS078QHwSE&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">PIR Sensor Tracking My Hand</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/SWX8IcmCmBM&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/SWX8IcmCmBM&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-family: arial; font-weight: bold;">PIR Tracking Update 2 Autocalibration</span><br /><br /><object style="font-family: arial; font-weight: bold;" width="425" height="344"><param name="movie" value="http://www.youtube.com/v/_gUGGN0TqyA&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/_gUGGN0TqyA&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-89818723837417742602009-06-30T05:35:00.000-07:002009-11-28T02:26:48.039-08:00Crank and Camshaft sensor Video<span style="font-weight: bold;font-size:130%;" ><span style="font-family:arial;">Crank and Camshaft sensor 1</span></span><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/RtqeOYNgn8A&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/RtqeOYNgn8A&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><span style="font-weight: bold;font-size:130%;" ><br /><span style="font-family:arial;">Crank and Camshaft Sensor 2</span></span><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/H5rfWyLSfyI&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/H5rfWyLSfyI&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-73320417027381303152009-06-27T05:33:00.000-07:002009-11-28T02:27:55.182-08:00Vehicle fuel injection Video<span style="font-weight: bold;font-size:130%;" ><span style="font-family:arial;">Fuel Rail Pressure Sensor</span></span><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/XNAhBHxX1S8&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/XNAhBHxX1S8&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-size:130%;"><span style="font-weight: bold;font-family:arial;" >Electronic fuel injection Video</span></span><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/nJBmarpS7MM&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/nJBmarpS7MM&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-size:130%;"><span style="font-weight: bold;font-family:arial;" >how fuel injection works Video</span></span><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/ufsOIOQmFHc&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/ufsOIOQmFHc&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-24197466727275788172009-06-20T05:30:00.000-07:002009-11-28T02:27:30.656-08:00Vehicle Speed sensor Video<span style="font-size:130%;"><span style="font-family: arial; font-weight: bold;">VSS or Vehicle Speed sensor</span></span><br /><br /><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/nBqZ6lQ3IVQ&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/nBqZ6lQ3IVQ&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object><br /><br /><span style="font-size:130%;"><span style="font-family: arial; font-weight: bold;">Replacing a vehicle speed sensor</span></span><br /><object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/5vv9Q-BoW8E&hl=en&fs=1&rel=0"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/5vv9Q-BoW8E&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-86682432415789319872009-06-17T22:15:00.000-07:002009-06-18T05:56:31.041-07:00The High Temperature Speed Sensor – the Hottest New Technology<h3 style="font-family: arial;">The High Temperature Speed Sensor – the Hottest New Technology</h3><strong style="font-family: arial;">Author: <a title="Rosa Telipten" href="http://www.articlesbase.com/authors/rosa-telipten/87588.htm">Rosa Telipten</a></strong><br /><p style="font-family: arial;">Have you ever stopped to wonder how gages and sensors in rocket engines work? Man, those engines and everything in them must get hot! So why doesn't the whole system go haywire when all of the finite mechanisms such as speed sensors that gage the rotation rate of all the different spinning motors get hot enough to melt common metals.</p> <p style="font-family: arial;">High Tech Materials</p> <p style="font-family: arial;">Well it would be easy to guess that they make everything out of high temperature alloys. Hey! What about electrical components that contain finite moving parts? Won't everything short out and what about metal expansion in high temperatures? The fact is, that all of these problems have been solved with the use of new high tech materials.</p> <p style="font-family: arial;">Magnetic Sensors</p> <p style="font-family: arial;">First of all, high temperature sensors use magnets or silicon strips impregnated with magnetic material to actually gage how fast something is spinning, so that eliminates any type of cable that would foul up in high temperatures. So, this eliminates one problem but what about thew others?</p> <p style="font-family: arial;">Ceramics Replaces Metal in High Temperatures</p> <p style="font-family: arial;">Ceramics are now used extensively in high tech, high temperature speed sensors and if fact ceramics are finding their way into many high temperature mechanical applications. Its hard, expands minimally, can be shaped and milled and doesn't conduct electricity and withstands extremely high temperatures, so ceramics works great in high temperatures.</p> <p style="font-family: arial;">High Tech Alloys Resist High Temperatures</p> <p style="font-family: arial;">For wiring, copper which melts at around 2,000 degrees is replaced by new high tech alloys that stand up to much higher temperatures. Instead of plastic coating, like regular wire, other high tech heat resistant materials such as asbestos are used to insulate the wiring in todays high temperature speed sensor.</p><strong style="font-family: arial;">About the Author:</strong><br /><p style="font-family: arial;">Article on Rosa Telipten. Find the latest details on <a href="http://motionsensors.com/high_temperature_speed_sensor.html">High Temperature Speed Sensor</a> plus the best on <a href="http://motionsensors.com/turbine_speed_sensor.html">Turbine Speed Sensor</a></p><p style="font-family: arial;">Article Source: <a href="http://www.articlesbase.com/travel-tips-articles/the-high-temperature-speed-sensor-the-hottest-new-technology-598479.html" title="The High Temperature Speed Sensor – the Hottest New Technology">http://www.articlesbase.com/travel-tips-articles/the-high-temperature-speed-sensor-the-hottest-new-technology-598479.html</a></p><p style="font-family: arial;"><br /></p><p style="font-family: arial;"><span style="font-weight: bold;">High Temperature Speed Sensor Device</span><br /><br />Variable Reluctance Sensors - High Temperature<br />Motion Sensors (MSI) High Temperature sensors were designed to operate reliably in high temperature environments for long periods of time. These sensors can easily withstand repeated thermocycling and feature an operating temperature range of -450°F to +850°F and +1000°F intermittently. A flexible stainless steel braided sheath that can withstand exposure to +1000°F protects signal lead wires. Special materials and construction prevent damage from physical abuse and thermal shock. In addition, all High Temperature magnetic sensors are hermetically sealed.</p><p style="font-family: arial;"><a href="http://www.articlesbase.com/travel-tips-articles/the-high-temperature-speed-sensor-the-hottest-new-technology-598479.html" title="The High Temperature Speed Sensor – the Hottest New Technology">http://motionsensors.com/vr-hightemp.html<br /></a></p>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-37527616740874044572009-06-15T22:11:00.000-07:002009-06-15T22:11:00.804-07:00Contact And Non-Contact Varieties Of Temperature Sensors<h3 style="font-family: arial;">Contact And Non-Contact Varieties Of Temperature Sensors</h3><strong style="font-family: arial;">Author: <a title="Thomas Pretty" href="http://www.articlesbase.com/authors/thomas-pretty/44335.htm">Thomas Pretty</a></strong><br /><p style="font-family: arial;">Generally temperature sensors fall into two distinct categories, defined as contact and non-contact. It must be remembered that sensors and particularly those that measure temperature inherently have problems with accuracy. What is important to recognise is that the discrepancy estimates should be accurate and many readings should be made in order for the final results to have decent levels of accuracy.<br /><br />Part of this is to calibrate your temperature sensors whether they are contact or non-contact with a known temperature, by doing this you can minimise any discrepancies in the readings, making your measurement extremely accurate; this process is fundamentally important before any measurement can take place.<br /><br />Contact temperature sensors essentially measure their own temperature at any given time. They do this by creating a thermal equilibrium between the sensor and the substance being measured. Thermal equilibrium simply means that the two bodies have no heat flowing between them and are hence the same temperature. There are however a variety of errors that can occur when using these types of sensors, for instance surfaces are especially hard to measure with contact sensors, in such instances a non-contact method is more avoidable.<br /><br />Contact sensors are by far the norm for temperature measurement in science and industry. Types of contact sensor include thermocouples and thermometers. Thermocouples use an electrical current with specific resistance levels that through variations of this resistance can measure temperature; this is widely termed the Seebeck effect. Out of the temperature sensors utilised in science and industry thermocouples are some of the most widely used due to their ease of operation, relative inexpensiveness and their ability to measure across a wide spectrum.<br /><br />Thermometers as a means of measuring temperature differ greatly, not only in terms of accuracy but in terms of operation. Of course there is the most widely used sensor in the world the liquid glass thermometer; the one that measured your fever when you were a child. As well as these however there are filled system thermometers used in ovens to regulate cooking temperatures as well as bimetallic thermometers that have two metals contained within them that measure at different rates. However there is no need to use an expensive thermometer, it is even possible to measure temperature with the use of materials that change state at certain temperatures, scientifically these are known as phase change devices.<br /><br />Less widespread is the use of non-contact sensors, as a result the manufacture and use of these devices is less standardised than the contact type. The situation is changing however; in the medical profession the use of the infra red ear thermometer is becoming extensive as a more efficient and effective way of gaining patient temperatures. The lack of standardisation of other forms of non-contact sensors has meant that they are struggling to be utilised across a wide variety of industry sectors. <br /><br />Fundamentally they work on the principles of Plank's law; that is the thermal emission of radiation, although the names given to this type of sensors are extremely varied, adding to the confusion that surrounds their usage. Names such as pyrometer, radiometer and thermal imager are most common but are in no way a comprehensive list for this type of temperature sensor.<br /><br />Today temperature sensors are used in all manner of industries and professions. Naturally the medical profession uses both varieties of sensor extensively but those in the manufacturing of foodstuffs such as the fermenting process as well as the manufacture of goods also use thermal measurement regularly. The large number of different varieties stands testament to the importance of this piece of equipment in the world currently, fundamental is that they should be calibrated so that accurate measurements can be made.</p><strong style="font-family: arial;">About the Author:</strong><br /><p style="font-family: arial;">Equipment expert Thomas Pretty looks into the different types of <a href="http://www.rmsupply.co.uk/">temperature sensors</a> and the industries that use them.</p><p style="font-family: arial;">Article Source: <a href="http://www.articlesbase.com/technology-articles/contact-and-noncontact-varieties-of-temperature-sensors-453850.html" title="Contact And Non-Contact Varieties Of Temperature Sensors">http://www.articlesbase.com/technology-articles/contact-and-noncontact-varieties-of-temperature-sensors-453850.html</a></p>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-34513491461149484332009-06-13T22:03:00.000-07:002009-06-13T22:13:02.689-07:00Different Types Of Temperature Sensors Available<h3 style="font-family: arial;">Different Types Of Temperature Sensors Available</h3><strong style="font-family: arial;">Author: <a title="Thomas Pretty" href="http://www.articlesbase.com/authors/thomas-pretty/44335.htm">Thomas Pretty</a></strong><br /><p style="font-family: arial;">There are many industries that utilise temperature sensors in day to day operations. Mostly there are two distinct varieties of contact sensor used for the purpose; these are the thermocouple and resistance temperature detector or RTD. Measurement usually takes place in liquids or with contact with the target surface. Contact is not however a prerequisite, there are some temperature sensors out there that operate without contact with the target material; instead measuring the ionisation of the air caused by heat.<br /><br />When selecting which type of sensor to use there a myriad of considerations that must be made depending specifically on the application. Additionally however when selecting a sensor it is important to consider the temperature range, the required accuracy and response time as these will vary with different measuring methods. When accuracy is of prime importance an RTD sensor is preferable although for those with an eye on finances, thermocouples are clearly the cheaper, more affordable option. Hopefully the following break down of the RTD, thermocouple and infrared thermometer will help operatives make the decision.<br /><br />The basics of RTD operation rely on the increase of resistivity that occurs when the temperature of a material is increased. Normally RTD sensors are manufactured from metals such as platinum, nickel and copper. Predominantly copper and nickel variants are used for measuring lower temperatures while platinum, although more expensive has a wide temperature range that is useful for a variety of purposes. Normally RTDs are constructed simply, a sensing element is connected a non-conducting element made from ceramic, glass or mica. The element measures the resistance and from this reading a temperature result is gained.<br /><br />Thermocouples differ from RTDs in that they utilise two different metals that are joined at one end to produce a voltage that can be converted into a temperature reading. Where the two metals meet is called the sensing junction, this junction can be connected to extension wires meaning that the physical range of the thermocouple is large. Any two metals can be used in the construction of thermocouples making them more affordable than RTD sensors. Thermocouples however can produce inaccurate results if other components are introduced into the electrical circuit as they rely upon voltage to measure temperature.<br /><br />As previously stated there are other forms of sensor on the market although the two aforementioned are predominant. Increasingly infrared thermometers are being used for temperature measurement. These work through a non contact method and are subsequently used for specific applications that require remote temperature measurement. Usually they consist of a lens to focus the infrared light on a source and then using the light to take a temperature reading. As they do not need contact to measure they are frequently used as a control thermometer when calibrating thermostats and inbuilt thermometers. As well as this the infrared technology is often used in researching the heating and cooling properties of certain materials.<br /><br />Hopefully this information has given the uneducated a clearer idea of the types of temperature sensor out there on the market today. Depending upon which applications they are to be used for, all three have various benefits and restrictions. Cost naturally varies but in most cases the extra cost is a necessary sacrifice to achieve greater levels of accuracy. Whether using RTDs, thermocouples or infrared spot thermometers all can produce valid and accurate results; once you have decided which will suit your needs most effectively take time to research the models out there to find the perfect solution to your temperature measurement requirements.</p><strong style="font-family: arial;">About the Author:</strong><br /><p style="font-family: arial;">Technology expert Thomas Pretty looks into the different forms of <a href="http://www.rmsupply.co.uk/">temperature sensors</a> available on the market today.</p><p style="font-family: arial;">Article Source: <a href="http://www.articlesbase.com/technology-articles/different-types-of-temperature-sensors-available-523315.html" title="Different Types Of Temperature Sensors Available">http://www.articlesbase.com/technology-articles/different-types-of-temperature-sensors-available-523315.html</a></p><br /><span style="font-weight: bold;font-family:arial;" >RTD</span><br /><span style="font-family:arial;">A basic physical property of a metal is that its electrical resistivity changes with temperature. All RTD's are based on this principle. The heart of the RTD is the resistance element. Several varieties of semi-supported wire-wound fully supported bifilar wound glass, and thin film type elements are shown here.</span><br /><a href="http://www.thermometricscorp.com/rtdsensors.html"><span style="font-family:arial;">more</span></a><br /><span style="font-family:arial;"></span><br /><br /><span style="font-weight: bold;font-family:arial;" >THERMOELECTRICITY IN RETROSPECT</span><br /><span style="font-family:arial;">The principles and theory associated with thermoelectric</span><br /><span style="font-family:arial;">effects were not established by any one person at any</span><br /><span style="font-family:arial;">one time. The discovery of the thermoelectric behavior of</span><br /><span style="font-family:arial;">certain materials is generally attributed to T. J. Seebeck.</span><br /><span style="font-family:arial;">In 1821, Seebeck discovered that in a closed circuit made up</span><br /><span style="font-family:arial;">of wire of two dissimilar metals, electric current will flow if</span><br /><span style="font-family:arial;">the temperature of one junction is elevated above that of the</span><br /><span style="font-family:arial;">other. Seebeck's original discovery used a thermocouple circuit</span><br /><span style="font-family:arial;">made up of antimony and copper. Based on most common</span><br /><span style="font-family:arial;">usage and recognition today</span><br /><a href="http://www.athenacontrols.com/pages/service/pdfs/tctechdata.pdf"><span style="font-family:arial;">more</span></a><br /><span style="font-family:arial;"></span>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-7738474165863896462009-04-26T20:55:00.000-07:002009-04-26T20:55:00.302-07:00Thermocouple Theory<span style="font-family:arial;">Thermocouple Theory<br />By <a href="http://ezinearticles.com/?expert=Caleb_Streur">Caleb Streur</a><br /><br />Overview<br /><br />A thermocouple is a commonly used type of sensor that is used to measure temperature. Thermocouples are popular in industrial control applications because of their relatively low cost and wide measurement ranges. In particular, thermocouples excel at measuring high temperatures where other common sensor types cannot function. Try operating an integrated circuit (LM35, AD 590, etc.) at 800C.<br /><br />Thermocouples are fabricated from two electrical conductors made of two different metal alloys. The conductors are typically built into a cable having a heat-resistant sheath, often with an integral shield conductor. At one end of the cable, the two conductors are electrically shorted together by crimping, welding, etc. This end of the thermocouple--the hot junction--is thermally attached to the object to be measured. The other end--the cold junction, sometimes called reference junction--is connected to a measurement system. The objective, of course, is to determine the temperature near the hot junction.<br /><br />It should be noted that the "hot" junction, which is somewhat of a misnomer, may in fact be at a temperature lower than that of the reference junction if low temperatures are being measured.<br /><br />Reference Junction Compensation Thermocouples generate an open-circuit voltage, called the Seebeck voltage, that is proportional to the temperature difference between the hot and reference junctions :<br /><br />Vs = V(Thot-Tref)<br /><br />Since thermocouple voltage is a function of the temperature difference between junctions, it is necessary to know both voltage and reference junction temperature in order to determine the temperature at the hot junction. Consequently, a thermocouple measurement system must either measure the reference junction temperature or control it to maintain it at a fixed, known temperature.<br /><br />There is a misconception of how thermocouples operate. The misconception is that the hot junction is the source of the output voltage. This is wrong. The voltage is generated across the length of the wire. Hence, if the entire wire length is at the same temperature no voltage would be generated. If this were not true we connect a resistive load to a uniformly heated thermocouple inside an oven and use additional heat from the resistor to make a perpetual motion machine of the first kind.<br /><br />The erroneous model also claims that junction voltages are generated at the cold end between the special thermocouple wire and the copper circuit, hence, a cold junction temperature measurement is required. This concept is wrong. The cold -end temperature is the reference point for measuring the temperature difference across the length of the thermocouple circuit.<br /><br />Most industrial thermocouple measurement systems opt to measure, rather than control, the reference junction temperature. This is due to the fact that it is almost always less expensive to simply add a reference junction sensor to an existing measurement system than to add on a full-blown temperature controller. <a href="http://www.sensoray.com/products/data_acquisition.htm">Sensoray Smart </a>A/D's measure the thermocouple reference junction temperature by means of a dedicated analog input channel. Dedicating a special channel to this function serves two purposes: no application channels are consumed by the reference junction sensor, and the dedicated channel is automatically pre-configured for this function without requiring host processor support. This special channel is designed for direct connection to the reference junction sensor that is standard on many Sensoray termination boards.<br /><br />Linearization Within the "useable" temperature range of any thermocouple, there is a proportional relationship between thermocouple voltage and temperature. This relationship, however, is by no means a linear relationship. In fact, most thermocouples are extremely non-linear over their operating ranges. In order to obtain temperature data from a thermocouple, it is necessary to convert the non-linear thermocouple voltage to temperature units. This process is called "linearization."<br /><br />Several methods are commonly used to linearize thermocouples. At the low-cost end of the solution spectrum, one can restrict thermocouple operating range such that the thermocouple is nearly linear to within the measurement resolution. At the opposite end of the spectrum, special thermocouple interface components (integrated circuits or modules) are available to perform both linearization and reference junction compensation in the analog domain. In general, neither of these methods is well-suited for cost-effective, multipoint data acquisition systems.<br /><br />In addition to linearizing thermocouples in the analog domain, it is possible to perform such linearizations in the digital domain. This is accomplished by means of either piecewise linear approximations (using look-up tables) or arithmetic approximations, or in some cases a hybrid of these two methods.<br /><br />The Linearization Process Sensoray’s Smart A/D’s employ a thermocouple measurement and linearization process that is designed to hold costs to a practical level without sacrificing performance.<br /><br />First, both the thermocouple and reference junction sensor signals are digitized to obtain thermocouple voltage Vt and reference junction temperature Tref. The thermocouple signal is digitized at a higher rate than the reference junction because it is assumed that the reference junction is relatively stable compared to the hot junction. Reference junction measurements are transparently interleaved between thermocouple measurements without host processor intervention.<br /><br />An onboard processor then performs linearization and reference junction compensation in the digital domain. Depending on the thermocouple type being used, an appropriate "correction voltage" is computed by mapping reference junction temperature into equivalent thermocouple voltage: Vc=V(Tref). This correction voltage is added to the measured thermocouple voltage to obtain the "corrected" thermocouple voltage:Vtc=Vt+Vc. Finally, the corrected thermocouple voltage is linearized by mapping it into temperature units: T=T(Vtc). <a href="http://www.sensoray.com/">Sensoray Smart Sensor </a>Processors utilize look-up tables for determination of both correction voltage and thermocouple temperature. Although there are many advantages to this approach, the most important is this: high measurement throughputs can be achieved without the need for a high-speed DSP. Consequently, Smart A/D’s offer superior thermocouple measurement performance at a low cost and low power-consumption..<br /><br />Article Source: <a href="http://ezinearticles.com/?Thermocouple-Theory&id=385243">_http://EzineArticles.com/?expert=Caleb_Streur</a><br /><br /><br /><br /><strong>IPTS-68 REFERENCE TEMPERATURES</strong><br />EQUILIBRIUM POINT K C<br />Triple Point of Hydrogen 13.81 -259.34<br />Liquid/Vapor Phase of Hydrogen 17.042 -256.108<br />at 25/76 Std. Atmosphere<br />Boiling Point of Hydrogen 20.28 -252.87<br />Boiling Point of Neon 27.102 -246.048<br />Triple Point of Oxygen 54.361 -218.789<br />Boiling Point of Oxygen 90.188 -182.962<br />Triple Point of Water 273.16 0.01<br />Boiling Point of Water 373.15 100<br />Freezing Point of Zinc 692.73 419.58<br />Freezing Point of Silver 1235.08 961.93<br />Freezing Point of Gold 1337.58 1064.43</span>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-59971494398685096212009-04-25T20:51:00.000-07:002009-04-25T20:51:00.117-07:00Basic Thermocouples<span style="font-family:arial;"><strong><span style="font-size:130%;">How Does A Thermocouple Work</span>?</strong><br />By <a href="http://ezinearticles.com/?expert=Joe_Crew">Joe Crew</a><br /><br /><strong><span style="font-size:130%;">Thermocouples</span></strong><br /><br />Measurement and control of temperature is one of the most common requirements of industrial instrumentation and the thermocouple is by far the most widely used temperature sensor. Its characteristics include good inherent accuracy, suitability over a broad temperature range, fast thermal response, ruggedness, high reliability and low cost.<br /><br />How does a thermocouple work?<br /><br />T.J Seebeck discovered in the 1820s that an electric current flows in a closed circuit of two dissimilar metals when one of the two junctions is heated with respect to the other. In a thermocouple circuit the current continues to flow as long as the two junctions are at different temperatures. The magnitude and direction of the current depends on the temperature difference between the junctions and the properties of the metals used in the circuit. This is known as the Seebeck effect. <a href="http://www.datatrackpi.com/dyn/copy1132225466.jpg">Click</a> here to see an example of the circuit.<br /><br />If the circuit is broken at the center, the net open circuit voltage (the Seebeck voltage) is a function of the junction temperature and the composition of the two metals.<br /><br />If the hot and cold junctions are reversed, current will flow in the opposite direction. Any two dissimilar metals can be used and the thermocouple circuit will generate a low voltage output that is almost (but not exactly) proportional to the temperature difference between the hot junction and the cold junction. The voltage output is between 15 and 40µV per degree C, dependant on the thermocouple conductor metals used. The actual metals used in industrial thermocouples depend on the application and temperature measurement range required.<br /><br /><strong><span style="font-size:130%;">Thermocouple failure prediction<br /></span></strong><br />Like any other metal object, thermocouples are subject to metal fatigue wear and tear; they have a finite life. Many users of thermocouples are not aware of thermocouple deterioration until the sensor breaks, often causing an expensive interruption of a process. Removing a thermocouple from a furnace when at operating temperature can be difficult and dangerous. In fact the thermocouple, a simple and generally inexpensive sensor, can cause inaccurate readings for some time before any errors are detected. The errors usually cause low readings due to the thermocouple wires becoming thinner.<br /><br />Impurities induced by any handling during manufacture or installation can accelerate chemical deterioration of the thermocouple. For base metal thermocouples, deterioration occurs slowly due to contact with the atmosphere, which in turn causes oxidation. As the surface of the thermocouple wires oxidises the current carrying cross sectional area is reduced. Nobel metal thermocouple deterioration is also well documented.<br /><br />In "Principals and Method of Temperature Measurement", Thomas D McGee explains that the usual result of deterioration is the gradual reduction in the Seebeck voltage, often extended over several weeks and not frequently detected. If the Seebeck voltage is low, the measured temperature will also be low, so the actual process temperature will be increased to produce the required Seebeck voltage. The net result will be excessive temperature generation with resulting damage to material and processes. Those who use thermocouples should be aware of the possibilities of slow deterioration and its consequences.<br /><br />A temperature controller, for example, would actually compensate for the thermocouple's loss of thermoelectric power by putting more heat into the process with all the energy, environmental and process plant costs that would be incurred. Fortunately, while Mr Thomas Johann Seebeck was experimenting with his wires in the 1820s, his contemporary and fellow countryman, Mr Georg Ohm, was also conducting his own experiments. Fortuitously because as the thermocouple conductors become thinner, their resistance changes as described in "Practical Temperature Measurement" by Peter R. N. Childs.<br /><br />"The loop resistance of a thermocouple depends on its length, type and diameter of the thermocouple wire, the length type and diameter of extension wires, temperatures along the circuit and the contact resistance at any connections. If on installation, and at regular intervals in use, a measurement is made of this loop resistance, then a change in this value can be used to indicate wire thinning due to chemical attack, loose or corroded connections, contact resistance due to broken but touching wires or electrical shunting due to loss of insulation at some location along the wire."<br /><br />Regular measurements of the thermocouple loop can indicate that the sensor should be replaced for reasons of accuracy and can also be used to predict its complete failure (sensor break). As thermocouple conductors oxidise they become brittle, making them more susceptible to breakage due to bending or vibration. Replacing thermocouples during a planned maintenance period is easier and more cost effecting than replacing thermocouples while the plant is running.<br /><br />Joe Crew is the Product Manager at <a href="http://www.datatrackpi.com/">Data Track Process Instruments Ltd.</a> Data Track manufactures digital panel meters, large number displays, PID controllers, signal conditioners and remote data acquisition systems for the process and control industry. Data Track can also supply HMI touchscreen operator panels and SCADA software. In their new line of PID controllers, Data Track has developed a solution to this common thermocouple problem. The Tracker 331 and Tracker 332 have, as standard, the ability to continually measure the condition of the connected thermocouple and prompt for its replacement before it starts to affect the process and/or fails completely.<br /><br />Article Source: <a href="http://ezinearticles.com/?How-Does-A-Thermocouple-Work?&id=97906">_http://EzineArticles.com/?expert=Joe_Crew</a><br /><br /><br /><strong><span style="font-size:130%;">The Seebeck effect</span></strong><br />The discovery of thermoelectricity dates back to Seebeck [</span><a href="http://www.thermoelectrics.com/introduction.htm#ref1#ref1"><span style="font-family:arial;">1</span></a><span style="font-family:arial;">] (1770-1831). Thomas Johann Seebeck was born in Revel (now Tallinn), the capital of Estonia which at that time was part of East Prussia. Seebeck was a member of a prominent merchant family with ancestral roots in Sweden. He studied medicine in Germany and qualified as a doctor in 1802. Seebeck spent most of his life involved in scientific research. In 1821 he discovered that a compass needle deflected when placed in the vicinity of a closed loop formed from two dissimilar metal conductors if the junctions were maintained at different temperatures. He also observed that the magnitude of the deflection was proportional to the temperature difference and depended on the type of conducting material, and does not depend on the temperature distribution along the conductors. Seebeck tested a wide range of materials, including the naturally found semiconductors ZnSb and PbS. It is interesting to note that if these materials had been used at that time to construct a thermoelectric generator, it could have had an efficiency of around 3% - similar to that of contemporary steam engines.<br />The Seebeck coefficient is defined as the open circuit voltage produced between two points on a conductor, where a uniform temperature difference of 1K exists between those points<br /><span style="color:#009900;">Source<br /></span></span><span style="font-family:arial;color:#33cc00;">http://www.thermoelectrics.com/introduction.htm</span>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-16587022232791829972009-04-23T21:49:00.000-07:002009-04-23T21:49:00.591-07:00Work and Kinds of Accelerometer<span style="font-family:arial;"><p><br /><strong><span style="font-size:130%;">How does an Accelerometer Work?</span></strong><br />By <a href="http://ezinearticles.com/?expert=Bob_Jonathan">Bob Jonathan</a><br /><br />WHAT IS AN ACCELEROMETER?<br /><br />An accelerometer is an instrument for measuring acceleration, detecting and measuring vibrations, or for measuring acceleration due to gravity (inclination). Accelerometers can be used to measure vibration on vehicles, machines, buildings, process control systems and safety installations. They can also be used to measure seismic activity, inclination, machine vibration, dynamic distance and speed with or without the influence of gravity.<br /><br />HOW DOES AN ACCELEROMETER WORK?<br /><br />Used for calculating acceleration and measuring vibrations, the accelerometer is capable of detecting even the slightest movements, from the tilting of a building to smallest vibration caused by a musical instrument. Inside the accelerometer sensor minute structures are present that produces electrical charges if the sensor experiences any movement.<br />Accelerometers need to be placed on the surface of the object in order to determine the vibrations. It is not capable of work in isolation or apart from the object it is required to assess, it must be firmly attached to the object in order to give precise readings.<br /><br />KINDS OF ACCELEROMETER<br /><br />The two kinds of basic accelerometers are:<br /><br />1. ANALOG ACCELEROMETER<br /><br />At times Inputs and output readings also matter especially when it comes to determining the kind of accelerometer that needs to be placed on a certain object. If the output is digital then a digital accelerometer must be placed and vice versa. The main feature of this accelerometer is that the output tends to change when there is even a slight change in the input.<br />The most common type of this accelerometer is used in airbags of automobiles, to note the sudden drop in the speed of the vehicle and to trigger the airbag release. Even laptops are now being equipped with accelerometers in order to protect the hard drive against any physical dangers, caused mainly due to accidental drops.<br /><br />2. DIGITAL ACCELEROMETER<br /><br />The digital accelerometer is more sophisticated than the analog. Here the amount of high voltage time is proportional to the acceleration. One of its major advantages is that it is more stable and produces a direct output signal. Accelerometers are now also used in aerospace and many military applications, such as missile launch, weapon fire system, rocket deployment etc. Many a times these accelerometers are used to protect fragile equipment during cargo transportation, and report any strain that might cause a possible damage. Some companies have also managed to develop a wireless 3-axis accelerometers which are not only low in cost but are also shock durable. This 3-axis accelerometer has sensors that are used to protect mobiles and music players. Also these sensors are used in some of the devices used for traffic navigation and control.<br /><br />PIEZOELECTRIC SENSOR<br /><br />Depending upon the kind of work, the accelerometers vary in the way they are prepared and how they work. Some accelerometers use piezoelectricity, these are man-made. In such accelerometers the acceleration is calculated based upon the charges derived from the microscopic crystalline structures when they are accelerated due to motion.<br /><br />MEMS ACCELEROMETER<br /><br />Another kind works with the capacitance and the changes initiated within it as a result of some accelerative force. This technology is used from automotive industry to agriculture industry and from NASA to military researches and operations.<br /><br />STRAIN GAUGE<br /><br />This device is used to measure strain in an object, which is detected by a foil strain element. If the object, to which the gauge is attached is some how deformed that creates electrical charges and is known as the gauge factor.<br /><br />ACCELEROMETER IS USED IN:<br /><br />AUTOMOTIVE INDUSTRY<br /><br />Due to high demand and wide spread use of accelerometers in the automotive industry and new hi-tech technology, these sensors are now light weight and are available at low cost and reduced prices.<br /><br />MICROPHONES<br /><br />Microphones also carry accelerometers. That is how they are able to detect the minute frequencies.<br /><br />ROBOTICS<br /><br />The forces that can cause vibrations which are detected by the accelerometer can be static, dynamic or gravitational. Certain accelerometers are rated G. G stands for Gravity. Such accelerometers are used mostly in robotics. They are more sensitive to motion and can be triggered at the slightest changes in gravitational pulls.<br /><br />Read more about <a href="http://www.riekerinc.com/Accelerometers.htm">Accelerometer.</a><br /><br />copyrights - <a href="http://www.riekerinc.com/">RiekerInc.com</a><br /><br />Article Source: <a href="http://ezinearticles.com/?How-does-an-Accelerometer-Work?&id=285604">http://EzineArticles.com/?How-does-an-Accelerometer-Work?&id=285604</a><br /><br /><br /><strong><span style="color:#000099;">Memsic 2125 Accelerometer Demo Kit<br />Acceleration, Tilt, and Rotation Measurement</span></strong><br />Introduction<br />The Memsic 2125 is a low cost, dual-axis thermal accelerometer capable of measuring dynamic acceleration (vibration) and static acceleration (gravity) with a range of ±2 g. For integration into existing applications, the Memsic 2125 is electrically compatible with other popular accelerometers. What kind of things can be done with the Memsic 2125 accelerometer? While there are many possibilities, here’s a small list of ideas that can be realized with a Memsic 2125 and the Parallax BASIC<br />Stamp® microcontroller:<br /><br />- Dual-axis tilt sensing for autonomous robotics applications (BOE-Bot, Toddler, SumoBot)<br />- Single-axis rotational position sensing<br />- Movement/Lack-of-movement sensing for alarm systems</p><p><br /><a href="http://www.parallax.com/dl/docs/prod/acc/memsickit.pdf"><span style="color:#33cc00;">Memsic 2125 Datasheet pdf</span></a><br /></span><span style="font-family:arial;"><br /><strong><span style="color:#000099;">2g Tri-Axis Digital Accelerometer<br /></span></strong>The KXP84-2050 is a tri-axis silicon micromachined accelerometer with a full-scale output range of ±2g (19.6m/s2). The sense element is fabricated using Kionix’s proprietary plasma micromachining process technology. Acceleration sensing is based on the principle of a differential capacitance arising from acceleration-induced motion of the sense element, which further utilizes common mode cancellation to decrease errors from process variation, temperature, and environmental stress.<br /><br /><a href="http://www.kionix.com/accelerometers/accelerometer-KXP84.html"><span style="color:#33cc00;">KXP84-2050 Datasheet</span></a></span></p><span style="font-family:arial;"></span>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-20816717362050145672009-04-22T21:44:00.000-07:002009-04-22T21:44:00.289-07:00Basic Fiber Optic Sensors<span style="font-family:arial;"><strong><span style="font-size:130%;">Absolute Beginners' Guide to Fiber Optic Sensors<br /></span></strong>By <a href="http://ezinearticles.com/?expert=Colin_Yao">Colin Yao</a><br /><br />What are fiber optic sensors?<br /><br />The fundamental characteristic of all fiber optic sensors is that they depend on some optical properties, such as intensity, phase, state of polarization and wavelength, to be modulated by measurands. Measurands could be pressure, temperature, electromagnetic field or displacement.<br /><br />All fiber optic sensors have an optical element that is sensing these property changes. For most sensors, this element is the optical fiber itself or a non-fiber optical element.<br /><br />Fiber optic sensors with optical fiber as sensor element are called "intrinsic fiber sensor" and sensors with a non-optical fiber sensing element are called "extrinsic fiber sensor".<br /><br />1. Intrinsic Fiber Sensors<br /><br />In the intrinsic fiber sensor, external measurands such as pressure, vibration, temperature interact with optical fiber element and cause fiber bending, fiber distortion and a change in the refractive index of the sensing fiber.<br /><br />Because of the refractive index change, lights that travel through the fiber are affected accordingly. The changes in light properties, such as light intensity, light wavelength and light phase are then detected. The magnitude of measurands interacting with the fiber can then be determined.<br /><br />2. Extrinsic Fiber Sensors<br /><br />Birefringent crystal, intensity mask or thin film absorbers are most often used as sensor elements in extrinsic fiber sensors. Usually they are integrated into the optical path.<br /><br />When the external force interacts with the sensing element, the light properties are modulated as well. The sensor has light source, optical path and photo detector parts. The magnitude of measurands is detected similar to intrinsic fiber sensors.<br /><br />The Applications of Fiber Optic Sensors<br /><br />Wide Area Sensing and Monitoring<br /><br />Because of optical fiber's immune to electromagnetic field, fiber sensors have a big potential in these areas. They are widely used in temperature sensing in building, leakage monitoring along oil pipelines and so on.<br /><br />The above mentioned applications are called wide area sensing or monitoring. The name means that the sensing covers a wide area. In this area, fiber sensors are divide into two categories: distributed sensor and quasi-distributed sensor.<br /><br />1. Distributed Sensor<br /><br />Distributed sensors sense measurands continuouly over the entire length of the fiber. The most important criteria is that sensor fibers must be very sensitive to measurands.<br /><br />A typical example of distributed sensors is a temperature sensor utilizing Raman scattering effect in optical fibers. Another example is OTDR (Optical Time Domain Reflectometer) which senses signal reflection in the whole length of an optical path.<br /><br />2. Quasi-Distributed Sensor<br /><br />Quasi-distributed sensors use discrete sensor elements that are carefully arranged in the fiber network. This type if sensor needs to be small size, low cost and high reliability.<br /><br />High Sensitivity Measurements<br /><br />Another area for fiber sensors is the high sensitivity measurement applications. This type of sensors typically utilize light interference's extremely high sensitivity property.<br /><br />A number of interferometric fiber sensors have been used for measurement of temperature, pressure, vibration and so on. The fiber optic gyroscope is one typical example of this type of applications.<br /><br />Harsh Environment Measurement<br /><br />Some extreme environment has no choice but fiber optic sensors. This kind of applications include high temperature, immersion into chemical reagents, radioactive rays factories and so on. The fiber optic sensor's resistant to this type of harsh environment is extremely important.<br /><br />Colin Yao is an expert on fiber optic communication technologies and products. Learn about <a href="http://www.fiberoptics4sale.com/page/FOFS/CTGY/Fiber_Optic_ST_Connectors">fiber optic ST</a>, <a href="http://www.fiberoptics4sale.com/page/FOFS/CTGY/Fiber_Optic_ST_Connectors">ST connectors</a>, ST fiber connector on Fiber Optics For Sale Co. web site.<br /><br />Article Source: <a href="http://ezinearticles.com/?Absolute-Beginners-Guide-to-Fiber-Optic-Sensors&id=1277081">_http://EzineArticles.com/?expert=Colin_Yao</a><br /><br /><br /><strong><span style="font-size:130%;">Overview of Fiber Optic Sensors</span><br /></strong>Over the past twenty years two major product revolutions have taken place due to the<br />growth of the optoelectronics and fiber optic communications industries. The<br />optoelectronics industry has brought about such products as compact disc players, laser printers, bar code scanners and laser pointers. The fiber optic communication industry has literally revolutionized the telecommunication industry by providing higher performance, more reliable telecommunication links with ever decreasing bandwidth cost. This revolution is bringing about the benefits of high volume production to component users and a true information superhighway built of glass.<br /><a href="http://www.bluerr.com/images/Overview_of_FOS2.pdf"><span style="color:#33cc00;">more pdf</span></a><br /></span><br /><span style="font-family:arial;"><br /><strong><span style="font-size:130%;">Fiber Optic Sensors Device</span></strong></span><br /><span style="font-family:arial;"><strong><span style="font-size:130%;"></span></strong><br />keyence<br /></span><a href="http://www.keyence.com/products/sensors/fiberoptic/fiberoptic.php"><span style="font-family:arial;color:#000099;">http://www.keyence.com/products/sensors/fiberoptic/fiberoptic.php</span></a><br /><span style="font-family:arial;"><br />fiso<br /></span><span style="font-family:arial;color:#000099;"><a href="http://www.fiso.com/">http://www.fiso.com</a></span><br /></span><span style="font-family:Arial;"></span>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.comtag:blogger.com,1999:blog-8796265666564640201.post-44571382993192495792009-04-20T21:38:00.000-07:002009-04-20T21:44:02.056-07:00Emergency Wireless Sensor Networks<p><span style="font-family:arial;"><strong>Wireless Sensor Networks - An Emerging Technology</strong><br />By <a href="http://ezinearticles.com/?expert=Udit_Agarwal">Udit Agarwal</a><br /><br />Wireless sensor networks (WSNs) are an emerging technology consisting of small, low-power devices that integrate limited computation, sensing and radio communication capabilities. The technology has the potential to provide flexible infrastructures for numerous applications, including healthcare, industry automation, surveillance and defense. Wireless sensor networks promise an unprecedented fine-grained interface between the virtual and physical worlds. They are one of the most rapidly developing new information technologies, with applications in a wide range of fields including industrial process control, security and surveillance, environmental sensing, and structural health monitoring.<br /><br />A wireless sensor network is a wireless network consisting of spatially distributed autonomous devices using sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants, at different locations. The development of wireless sensor networks was originally motivated by military applications such as battlefield surveillance. However, wireless sensor networks are now used in many civilian application areas, including environment and habitat monitoring, healthcare applications, home automation, and traffic control.<br /><br />In addition to one or more sensors, each node in a sensor network is typically equipped with a radio transceiver or other wireless communications device, a small micro controller, and an energy source, usually a battery. The envisaged size of a single sensor node can vary from shoebox-sized nodes down to devices the size of grain of dust, although functioning 'motes' of genuine microscopic dimensions have yet to be created. The cost of sensor nodes is similarly variable, ranging from hundreds of dollars to a few cents, depending on the size of the sensor network and the complexity required of individual sensor nodes. Size and cost constraints on sensor nodes result in corresponding constraints on resources such as energy, memory, computational speed and bandwidth. A sensor network normally constitutes a wireless ad-hoc network, meaning that each sensor supports a multi-hop routing algorithm (several nodes may forward data packets to the base station). In computer science and telecommunications, wireless sensor networks are an active research area with numerous workshops and conferences arranged each year.<br /><br />The applications for WSNs are many and varied. They are used in commercial and industrial applications to monitor data that would be difficult or expensive to monitor using wired sensors. They could be deployed in wilderness areas, where they would remain for many years (monitoring some environmental variables) without the need to recharge/replace their power supplies. They could form a perimeter about a property and monitor the progression of intruders (passing information from one node to the next). There are many uses for WSNs. Typical applications of WSNs include monitoring, tracking, and controlling. Some of the specific applications are habitat monitoring, object tracking, nuclear reactor controlling, fire detection, traffic monitoring, etc. In a typical application, a WSN is scattered in a region where it is meant to collect data through its sensor nodes. Another class of application is the so-called smart space.<br /><br />Article Source: <a href="http://ezinearticles.com/?Wireless-Sensor-Networks---An-Emerging-Technology&id=1374627">_http://EzineArticles.com/?expert=Udit_Agarwal</a> <br /></span></p><p><span style="font-family:arial;"><strong><span style="color:#009900;">Wireless Sensor NetworkBased Tunnel Monitoring</span></strong><br />ABSTRACT<br />In this paper we describe the development and deployment of a<br />wireless sensor network (WSN) to monitor a train tunnel during adjacent<br />construction activity. The tunnel in question is a part of the<br />London Underground system. Construction of tunnels beneath the<br />existing tunnel is expected to cause deformations. The expected deformation<br />values were determined by a detailed geotechnical analysis.<br />A real-time monitoring system, comprising of 18 sensing units<br />and a base-station, was installed along the critical zone of the tunnel<br />to measure the deformations. The sensing units report their data<br />to the base-station at periodic intervals. The system was used for<br />making continuous measurements for a period of 72 days. This<br />window of time covered the period during which the tunnel boring<br />machine (TBM) was active near the critical zone. The deployed<br />WSN provided accurate data for measuring the displacements and<br />this is corroborated from the tunnel contractor’s data.<br /><br /><a href="http://www.sics.se/realwsn05/papers/cheekiralla05wireless.pdf"><span style="color:#33cc00;">More pdf</span></a><br /></span></p>smart_bloghttp://www.blogger.com/profile/03610848287930809726noreply@blogger.com