Beyer Weaver & Thomas LLP
Rotation angle sensor
An apparatus for detecting a rotation angle of a rotation around an axis of rotation includes a transducer magnet for generating a magnetic field as well as a plurality of magnetic-field-sensitive sensor elements for detecting the magnetic field. The magnet and the plurality of magnetic-field-sensitive sensor elements are arranged such that, during a rotation around the axis of rotation, the plurality of magnetic-field-sensitive sensor elements circles relative to the transducer magnet around the same. By the plurality of magnetic-field-sensitive sensor elements, a scale is defined, with the transducer magnet being arranged such that the generated magnetic-field comprises a characteristic on a locus on the scale, and the locus on the scale being dependent on a partial area of a full rotation in an unique manner from the rotation angle. The transducer magnet is magnetized inclined to the axis of rotation. The apparatus enables on the one hand a simple transducer magnet structure and on the other hand an accurate and easy measuring processing process.
Fraunhofer-Gesellschaft zur FÃƒÂ¶rderung der angewandten Forschung e.V.
G
G01D
inventional
Ralf Heinrich
Gottfried-Gottfried Grueger