Patent ID: 6885189

Claim:
A measuring instrument for contactless detection of an angle of rotation, comprising a stator and a rotor between which the angle of rotation is to be detected; a magnet situated on said rotor; a shaft with which said rotor is an active contact; an extension, said shaft, said extension, and said rotor being composed of a magnetically soft material, said magnet being polarized in a direction of an axle of said shaft, said stator and said rotor being located so that a gap is provided therebetween, said stator being composed of at least two parts which are separated by at least one magnetically non conductive gap; at least one element which is sensitive to a magnetic field and located in at least one of said magnetically non-conductive gaps formed as a measuring gap, said rotor and said stator being formed as discs, said two stator parts having ends which are situated in two stacked planes located in an axial direction of said shaft, said at least one element which is sensitive to a magnetic field being situated between said ends of said stator in said measuring gap so that a magnetic flux flows in an axial direction of said shaft.