Patent ID: 7292026
Filing Date: 2007-11-06
Classification: F02D,G01D

Abstract:
1. An apparatus for providing an output signal correlated with a part position for a moveable part over a positional range, the apparatus comprising: a transmitter coil, the transmitter coil producing an electromagnetic field when excited by an exciter signal; a receiver coil located proximate to the transmitter coil, the receiver coil generating a receiver signal when the transmitter coil is excited due to inductive coupling between the transmitter coil and the receiver coil, the receiver signal being sensitive to the part position; a reference coil, providing a reference signal substantially independent of the part position; a signal conditioner receiving the receiver signal and the reference signal, the signal conditioner including an analog divider generating a ratio signal from the receiver signal and the reference signal, the output signal being obtained from the ratio signal.