VARIABLE RELUCTANCE TYPE ANGLE SENSOR WITH PARTIAL STATOR CORE

The present invention relates to a variable reluctance type angle sensor comprising at least one stator (104; 204) with an at least partly ferromagnetic core having a yoke (116; 216) and a plurality of poles (110; 210) which extend from the yoke (116; 216) radially inward toward or outward from a central rotational axis (106; 206) of the angle sensor, wherein an excitation winding and at least one output winding are mounted on the poles (110; 210), a rotor (102; 202) which is operable to rotate around the central rotational axis with respect to the stator and has such a shape that a gap permeance varies in a sine wave manner with respect to an angle of rotation around the central rotational axis. The yoke is shaped to extend along a circular arc around said central rotational axis (106; 206) to cover a yoke angle (124) of less than 360°.