Abstract: A rotational position sensor assembly for detecting the selected rotational position of a rotatable selector is provided including a reference member positioned about an axis; a proximity sensor disposed on the reference member; a rotatable selector defining an inner surface, the rotatable selector mounted about the reference member and rotatable about the axis, the inner surface and the proximity sensor defining a gap there between, wherein the gap varies with respect to the rotational position of the rotatable selector, the proximity sensor generating a signal proportional to the size of the gap; and a processor and a non-transitory computer readable storage medium, the computer readable storage medium including instructions executable by the processor to receive the signal proportional to the size of the gap from the proximity sensor; and correlate the signal with a rotational position of the rotatable selector.

Abstract: A rotational position sensor assembly for detecting the selected rotational position of a rotatable selector is provided including a reference member positioned about an axis; one or more proximity sensors disposed on the reference member; a rotatable selector defining an inner surface, the rotatable selector mounted about the reference member and rotatable about the axis, the inner surface and the proximity sensor defining a gap there between, wherein the gap varies with respect to the rotational position of the rotatable selector, the one or more proximity sensors generating signal(s) proportional to the size of the gap; and a processor and a non-transitory computer readable storage medium, the computer readable storage medium including instructions executable by the processor to receive signal(s) proportional to the size of the gap from the one or more proximity sensors; and correlate the signal(s) with a rotational position of the rotatable selector.