A sensor assembly comprising a first rotary sensor part with a plurality of individual electrically conducting axial position sensor segments arranged in a circumferential pattern, and a second rotary sensor part arranged rotationally relative to the first portion and comprising a plurality of circumferentially arranged electrically interconnected axial position contacts adapted to be arranged in contact with the axial position sensor segments. The assembly further comprises actuator means for axially moving the axial position contacts between a connected and a dis-connected position, wherein the axial position contacts and the axial position sensor segments are arranged such that for a given rotational position at least two axial position contacts each are in contact with a different axial position sensor segment.
