VSS or Vehicle Speed sensor
Replacing a vehicle speed sensor
Showing posts with label Speed Sensor. Show all posts
Showing posts with label Speed Sensor. Show all posts
Saturday, June 20, 2009
Saturday, April 18, 2009
Speed Sensors of Turbine
Turbine Speed Sensors - When RPM Counts
By Rosa Telip Ten
With turbine technology finding its way into more and more aspects of todays high tech world, many people just like yourself may find themselves in uncharted water in having to deal with them. The fact is, that turbines can be simple or extremely complex depending on what they are used in.
A Complex Turbine
For instance, a modern jet will have a highly complex turbine engine that burns fuel inside a series of alloy fan bladed to generate thrust. This would be a highly complex example of a turbine system being used to generate kinetic energy and force.
A Simple Turbine Engine
At the same time, the simple spinning vent on the roof of a house is yet another example of a far more simpler turbine engine. Even though it has only one moving part, it is by definition, a turbine engine none the less. Heat in the attic carries the energy that powers the roof vent turbine to spin, causing it to suck air out of the attic, thereby ventilating it.
Turbine Speed Indicators
A turbine speed sensor is but one of the many types of sensors that would be found on a complex turbine engine. Why is it necessary to know the speed that a turbine in an engine is spinning? If the engine is a jet engine, the the turbine is the main power source and the speed that it is rotating would be a prime indicator propulsion.
Turbo Charged Air Intake Systems
Also, a turbine can be an integral part but not the main component of a propulsion system or engine. A prime example of this would be a car with a turbo charged intake system. In this case a turbine speed sensor would provide real time information on how the air intake system is functioning at any given time.
Article by Rosa Telipten. Here you will find everything you wanted to learn regarding Turbine Speed Sensor and even Magnetic Speed Sensors
Article Source: _http://EzineArticles.com/?expert=Rosa_Telip_Ten
Real-Time Optical Fuel-to-Air Ratio
Sensor for Gas Turbine Combustors
ABSTRACT
The measurement of the temporal distribution of fuel in gas turbine
combustors is important in considering pollution, combustion
efficiency and combustor dynamics and acoustics. Much of the
previous work in measuring fuel distributions in gas turbine
combustors has focused on the spatial aspect of the distribution.
The temporal aspect however, has often been overlooked, even
though it is just as important. In part, this is due to the challenges
of applying real-time diagnostic techniques in a high pressure
and high temperature environment. A simple and low-cost instrument
that non-intrusively measures the real-time fuel-to-air ratio (FAR) in
a gas turbine combustor has been developed. The device uses a dual
wavelength laser absorption technique to measure the concentration
of most hydrocarbon fuels such as jet fuel, methane, propane, etc. The
device can be configured to use fiber optics to measure the local FAR
inside a high pressure test rig without the need for windows. Alternatively,
the device can readily be used in test rigs that have existing windows
without modifications. An initial application of this instrument was
to obtain time-resolved measurements of the FAR in the premixer of a
lean premixed prevaporized (LPP) combustor at inlet air pressures and
temperatures as high as 17 atm @ 800 K, with liquid JP-8 as the fuel.
Results will be presented that quantitatively show the transient nature
of the local FAR inside a LPP gas turbine combustor at actual operating
conditions. The high speed (kHz) time resolution of this device, combined
with a rugged fiber optic delivery system, should enable the realization of a
flight capable active-feedback and control system for the abatement of
noise and pollutant emissions in the future. Other applications that
require an in-situ and time-resolved measurement of fuel vapor
concentrations should also find this device to be of use.
More pdf
By Rosa Telip Ten
With turbine technology finding its way into more and more aspects of todays high tech world, many people just like yourself may find themselves in uncharted water in having to deal with them. The fact is, that turbines can be simple or extremely complex depending on what they are used in.
A Complex Turbine
For instance, a modern jet will have a highly complex turbine engine that burns fuel inside a series of alloy fan bladed to generate thrust. This would be a highly complex example of a turbine system being used to generate kinetic energy and force.
A Simple Turbine Engine
At the same time, the simple spinning vent on the roof of a house is yet another example of a far more simpler turbine engine. Even though it has only one moving part, it is by definition, a turbine engine none the less. Heat in the attic carries the energy that powers the roof vent turbine to spin, causing it to suck air out of the attic, thereby ventilating it.
Turbine Speed Indicators
A turbine speed sensor is but one of the many types of sensors that would be found on a complex turbine engine. Why is it necessary to know the speed that a turbine in an engine is spinning? If the engine is a jet engine, the the turbine is the main power source and the speed that it is rotating would be a prime indicator propulsion.
Turbo Charged Air Intake Systems
Also, a turbine can be an integral part but not the main component of a propulsion system or engine. A prime example of this would be a car with a turbo charged intake system. In this case a turbine speed sensor would provide real time information on how the air intake system is functioning at any given time.
Article by Rosa Telipten. Here you will find everything you wanted to learn regarding Turbine Speed Sensor and even Magnetic Speed Sensors
Article Source: _http://EzineArticles.com/?expert=Rosa_Telip_Ten
Real-Time Optical Fuel-to-Air Ratio
Sensor for Gas Turbine Combustors
ABSTRACT
The measurement of the temporal distribution of fuel in gas turbine
combustors is important in considering pollution, combustion
efficiency and combustor dynamics and acoustics. Much of the
previous work in measuring fuel distributions in gas turbine
combustors has focused on the spatial aspect of the distribution.
The temporal aspect however, has often been overlooked, even
though it is just as important. In part, this is due to the challenges
of applying real-time diagnostic techniques in a high pressure
and high temperature environment. A simple and low-cost instrument
that non-intrusively measures the real-time fuel-to-air ratio (FAR) in
a gas turbine combustor has been developed. The device uses a dual
wavelength laser absorption technique to measure the concentration
of most hydrocarbon fuels such as jet fuel, methane, propane, etc. The
device can be configured to use fiber optics to measure the local FAR
inside a high pressure test rig without the need for windows. Alternatively,
the device can readily be used in test rigs that have existing windows
without modifications. An initial application of this instrument was
to obtain time-resolved measurements of the FAR in the premixer of a
lean premixed prevaporized (LPP) combustor at inlet air pressures and
temperatures as high as 17 atm @ 800 K, with liquid JP-8 as the fuel.
Results will be presented that quantitatively show the transient nature
of the local FAR inside a LPP gas turbine combustor at actual operating
conditions. The high speed (kHz) time resolution of this device, combined
with a rugged fiber optic delivery system, should enable the realization of a
flight capable active-feedback and control system for the abatement of
noise and pollutant emissions in the future. Other applications that
require an in-situ and time-resolved measurement of fuel vapor
concentrations should also find this device to be of use.
More pdf
Sunday, April 12, 2009
The Workings of Magnetic Speed Sensor
How Does a Magnetic Speed Sensor Work?
By Rosa Telip Ten
For centuries speed sensors have been used to determine the speed of moving objects. In fact, the very first primitive speed sensors were lengths of rope with a knots tied in them that were tossed over the sides of moving ships to determine how many "knots" the ship was traveling at. However; the advent of the motorized wheeled carriage created the need for a more advanced mechanical speed sensor, such as the type that used a gear and a cable to run a speedometer on an automobile.
A Technological Need
As time and technology progressed however, the need for other types of accurate speed sensors developed. This in turn led to the development of what is often referred to as the magnetic speed sensor. So how do they work? How can a magnet detect and transmit the speed of a moving object?
The Hall Effect
It is not just the magnet in a magnetic speed sensor that is used to determine speed but an electrical current that surrounds the magnet as well. There is a certain electrical phenomena called the "Hall effect" that is used to determine the speed of an object with a magnet.
An Electrical Current
In short, when an electrical current is ran near a magnet and the magnet detects ferrous metal such as iron or steel the electrical current is effected. This electrical effect can then be transmitted by wires to a speed gauge where it can be displayed.
Gear Toothed Magnetic Sensor
Often a gear is used in conjunction with a magnetic speed sensor. As the gear spins or turns, each spline or tooth in it will be detected by the magnet as it passes and a corresponding electrical pulse is sent out. The faster the gear spins the faster the electrical pulses the sensor sends and thus a speed reading is made.
Written by Rosa Telipten. Now you can learn all you wanted to know about [http://motionsensors.com/magnetic_speed_sensors.html]Magnetic Speed Sensors and you will even find articles on Variable Reluctance Pickup.
Article Source: _http://EzineArticles.com/?expert=Rosa_Telip_Ten
AS5030
8 BIT PROGRAMMABLE HIGH SPEED
MAGNETIC ROTARY ENCODER
By Rosa Telip Ten
For centuries speed sensors have been used to determine the speed of moving objects. In fact, the very first primitive speed sensors were lengths of rope with a knots tied in them that were tossed over the sides of moving ships to determine how many "knots" the ship was traveling at. However; the advent of the motorized wheeled carriage created the need for a more advanced mechanical speed sensor, such as the type that used a gear and a cable to run a speedometer on an automobile.
A Technological Need
As time and technology progressed however, the need for other types of accurate speed sensors developed. This in turn led to the development of what is often referred to as the magnetic speed sensor. So how do they work? How can a magnet detect and transmit the speed of a moving object?
The Hall Effect
It is not just the magnet in a magnetic speed sensor that is used to determine speed but an electrical current that surrounds the magnet as well. There is a certain electrical phenomena called the "Hall effect" that is used to determine the speed of an object with a magnet.
An Electrical Current
In short, when an electrical current is ran near a magnet and the magnet detects ferrous metal such as iron or steel the electrical current is effected. This electrical effect can then be transmitted by wires to a speed gauge where it can be displayed.
Gear Toothed Magnetic Sensor
Often a gear is used in conjunction with a magnetic speed sensor. As the gear spins or turns, each spline or tooth in it will be detected by the magnet as it passes and a corresponding electrical pulse is sent out. The faster the gear spins the faster the electrical pulses the sensor sends and thus a speed reading is made.
Written by Rosa Telipten. Now you can learn all you wanted to know about [http://motionsensors.com/magnetic_speed_sensors.html]Magnetic Speed Sensors and you will even find articles on Variable Reluctance Pickup.
Article Source: _http://EzineArticles.com/?expert=Rosa_Telip_Ten
AS5030
8 BIT PROGRAMMABLE HIGH SPEED
MAGNETIC ROTARY ENCODER
The AS5030 is a contactless magnetic rotary encoder for
accurate angular measurement over a full turn of 360°.
It is a system-on-chip, combining integrated Hall
elements, analog front end and digital signal processing
in a single device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip is required.
The absolute angle measurement provides instant
indication of the magnet’s angular position with a
resolution of 8 bit = 256 positions per revolution. This
digital data is available as a serial bit stream and as a
PWM signal.
AS5030 Datasheet
accurate angular measurement over a full turn of 360°.
It is a system-on-chip, combining integrated Hall
elements, analog front end and digital signal processing
in a single device.
To measure the angle, only a simple two-pole magnet,
rotating over the center of the chip is required.
The absolute angle measurement provides instant
indication of the magnet’s angular position with a
resolution of 8 bit = 256 positions per revolution. This
digital data is available as a serial bit stream and as a
PWM signal.
AS5030 Datasheet
Thursday, April 9, 2009
Gear Tooth Hall Effect Speed Sensor
Everybody Knows What a Gear Tooth Hall Effect Speed Sensor is - So Why Don't You?
By Rosa Telip Ten
So what on earth is a gear tooth hall effect speed sensor anyway and do you really need to know? The fact is that if you drive a car with anti-lock brakes then you make use of them each and every time you drive your car. This is because they are the very latest technology in electronic speed sensors that are in use in automobiles today.
Magnetic Speed Sensors
Gear tooth hall effect speed sensors is a big mouthful of words to say, so these types of speed sensors are commonly referred to as magnetic speed sensors. They do in fact rely on the use of magnets in their function but it is the effect that the magnets have on electricity in sensor that powers their function.
Anti-Lock Braking Systems
Without electronic anti-lock braking sensors anti-lock braking systems would not be possible. It is the speed and frequency of the actual processes that transpires when anti lock braking systems are activated that requires the use of a high tech electronic sensor of this type.
The Focus on the Teeth in a Gear
Gear tooth hall effect sensors focus on and gage the number of gear teeth that pass by them to function. They use magnets to accomplish this and the information is passed on to a small central computer in the braking system that regulates the brakes in an anti lock braking system.
A Mouthful of Words
This process takes place up to twelve times every second and without this level of speed and accuracy anti-lock braking systems simply couldn't function correctly. So, the next time that you hear magnetic sensors being mentioned, you will now know that what the person is really talking about is gear tooth hall effect speed sensors.
Article by Rosa Telipten. Find the latest details on Gear Tooth Hall Effect Speed Sensor plus the best on [http://motionsensors.com/magnetic_speed_sensors.html]Magnetic Speed Sensors.
Article Source: _http://EzineArticles.com/?expert=Rosa_Telip_Ten
By Rosa Telip Ten
So what on earth is a gear tooth hall effect speed sensor anyway and do you really need to know? The fact is that if you drive a car with anti-lock brakes then you make use of them each and every time you drive your car. This is because they are the very latest technology in electronic speed sensors that are in use in automobiles today.
Magnetic Speed Sensors
Gear tooth hall effect speed sensors is a big mouthful of words to say, so these types of speed sensors are commonly referred to as magnetic speed sensors. They do in fact rely on the use of magnets in their function but it is the effect that the magnets have on electricity in sensor that powers their function.
Anti-Lock Braking Systems
Without electronic anti-lock braking sensors anti-lock braking systems would not be possible. It is the speed and frequency of the actual processes that transpires when anti lock braking systems are activated that requires the use of a high tech electronic sensor of this type.
The Focus on the Teeth in a Gear
Gear tooth hall effect sensors focus on and gage the number of gear teeth that pass by them to function. They use magnets to accomplish this and the information is passed on to a small central computer in the braking system that regulates the brakes in an anti lock braking system.
A Mouthful of Words
This process takes place up to twelve times every second and without this level of speed and accuracy anti-lock braking systems simply couldn't function correctly. So, the next time that you hear magnetic sensors being mentioned, you will now know that what the person is really talking about is gear tooth hall effect speed sensors.
Article by Rosa Telipten. Find the latest details on Gear Tooth Hall Effect Speed Sensor plus the best on [http://motionsensors.com/magnetic_speed_sensors.html]Magnetic Speed Sensors.
Article Source: _http://EzineArticles.com/?expert=Rosa_Telip_Ten
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