基本信息:
- 专利标题： ANORDNUNG ZUR DREHWINKELERFASSUNG EINES DREHBAREN ELEMENTS
- 专利标题（英）：System for detecting the angle of rotation of a rotatable element
- 专利标题（中）：安排角度获取的旋转要素
- 申请号：EP99936400.3 申请日：1999-06-02
- 公开(公告)号：EP1049908A1 公开(公告)日：2000-11-08
- 发明人： MARX, Klaus , KITTEL, Hartmut , JOST, Franz
- 申请人： ROBERT BOSCH GMBH
- 申请人地址： Postfach 30 02 20 70442 Stuttgart DE
- 专利权人： ROBERT BOSCH GMBH
- 当前专利权人： ROBERT BOSCH GMBH
- 当前专利权人地址： Postfach 30 02 20 70442 Stuttgart DE
- 优先权： DE19839446 19980829
- 国际公布： WO0012957 20000309
- 主分类号： G01B7/30
- IPC分类号： G01B7/30 ; G01D5/16
摘要：
The invention relates to a system for detecting the angle of rotation of a rotatable element. By evaluating magnetically influenced properties of a sensor system a first magnetic field (Bext) generated or influenced by a rotating element can be detected in an evaluation circuit and used to determine the angle of rotation. By using the magnetoresistive effect over a first angular range, notable an angular range of 180°, the sensor system provides signals clearly attributable to a direction of the magnetic field (Bext). Means for applying an auxiliary magnetic field (BH) to the sensor system are provided for by means of which the signals attributable to the direction of the first magnetic field (Bext) can be modified for the definite attribution of an angle over a second angular range, notably an angular range of 360°.
公开/授权文献:
- EP1049908B1 ANORDNUNG ZUR DREHWINKELERFASSUNG EINES DREHBAREN ELEMENTS 公开/授权日：2003-08-27
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01B | 长度、厚度或类似线性尺寸的计量；角度的计量；面积的计量；不规则的表面或轮廓的计量 |
| ------G01B7/00 | 以采用电或磁的方法为特征的计量设备 |
| --------G01B7/30 | .用于计量角度或锥度；用于检测轴线准直 |