Digital position sensor

  • 25-Mar-2013 03:19 EDT
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Housed in a standard thin-shrink small outline package (TSSOP) and able to withstand harsh environmental elements, the KMA36 from Measurement Specialties is a digital position sensor for precise rotational and incremental measurement of magnetic field fluctuations. The low-power KMA36 is suitable for use in industrial, engine, robotics, and motor machine applications. Specific implementations include potentiometer replacement, motor feedback control and gauge reading, precise linear displacement readings, or steering wheel measurements. Using anisotropic magnetoresistive technology, the contactless sensor measures angles of an exterior magnet over a 360° rotation as well as incremental positions along a linear magnetic pole strip with a 5-mm (0.20-in) pole length. The sensor can detect disturbances ranging from extremely weak fields, as found in traffic detection sensors, to strong field sensors used in precision encoders.

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