Abstract
A new type of magnetoinductive position sensor of simple construction is described. A miniature transformer is intermittently shielded from the saturating field of a permanent magnet by the rotation of a toothed, soft iron vane. The change in winding inductance with angular position controls the on/off state of an oscillator circuit. The angular deviation of the operating point is less than +or-1 degrees over the temperature range of -60 to 120 degrees C for any power supply voltage from 4 to 30 V. The simple electronics packaged with the sensor delivers a high-level output. The sensor is versatile, inexpensive, and sufficiently robust to meet the demands of the automotive industry.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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