Eddy current linear position sensors use a reference coil to produce a magnetic field in a target and monitor the field in an adjacent sensing coil to determine distance from target. As the target gets closer to the sensor, the magnetic field gets disrupted and this is sensed by the second coil. They also measure variations in the field due to the presence of nearby conductive objects. Field generation and detection information is provided in the kHz to MHz range. Because eddy current linear position sensors operate by their magnetic field being interrupted, it is possible to have magnetic or nonmagnetic targets, ferrous or nonferrous. |
Products & Services Related to Linear Position Sensors, Eddy Current
Cable Extension Linear Position Sensors
Cable extension linear position sensors are used to measure the movement and displacement of objects. A cable or wire is attached to an object, and as the object moves, the transducer produces an electrical signal proportional to the wire's linear extension.
Linear Position Sensors, LVDT
Linear variable differential transformer (LVDT) linear position sensors have a series of inductors in a hollow cylindrical shaft and a solid cylindrical core. These devices produce an electrical output proportional to the position of the core
Photoelectric Sensors
Photoelectric sensors use emitters and receivers to detect the presence, absence, or distance of target objects.
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Engineering Web: Linear Position Sensors, Eddy Current - Machine Design
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Basics of Design Engineering - Electrical/Electronic - DC Motors - Selecting DC ...
On the other hand, electronic drives for brush motors are usually much simpler than for comparably sized brushless motors. No position sensors or electronics are required for commutation. But these ...
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Machine Design -
On the other hand, electronic drives for brush motors are usually much simpler than for comparably sized brushless motors. No position sensors or electronics are required for commutation. But these ...
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Machine Design -
Permanent-magnet, disc-type stepping motors can also perform like dc brushless motors. The devices exhibit high torque and low inertia, resulting in a high power rate. Eddy-current and hysteresis ...
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