Patent ID: 9188421
Filing Date: 2015-11-17
Classification: G01B,G01D,H02K,H02P

Abstract:
1. A method for detecting a position of a movable element of a drive apparatus by means of a position detection apparatus comprising at least one excitation coil and a plurality of secondary coils assigned to the excitation coil, the excitation coil comprising at least a winding, the plurality of secondary coils being arranged within the winding of the excitation coil, the plurality of secondary coils comprising a first secondary coil pair and a second secondary coil pair, the first secondary coil pair being formed from a first cosinusoidal secondary winding and a first sinusoidal secondary winding, the second secondary coil pair being formed from a second cosinusoidal secondary winding and a second sinusoidal secondary winding, the method comprising the steps of: