发明名称 Rotation angle sensor
摘要 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.
申请公布号 US6781368(B2) 申请公布日期 2004.08.24
申请号 US20040467981 申请日期 2004.02.11
申请人 FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. 发明人 GRUEGER HEINRICH;GOTTFRIED-GOTTFRIED RALF
分类号 G01D5/14;(IPC1-7):G01B7/14 主分类号 G01D5/14
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