A position sensor is provided with a displacement signal output circuit 1 that amplifies an electromagnetically induced and detected current signal from a slider and converts the result to a rectangular wave signal; a phase difference detection circuit that compares the output signal from the...http://www.google.fr/patents/US5793202?utm_source=gb-gplus-shareBrevet US5793202 - Position sensor, employing electromagnetic induction
Position sensor, employing electromagnetic induction
