发明申请
- 专利标题: Magnetic type position and / or speed sensor
- 专利标题(中): 磁性位置和/或速度传感器
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申请号: US10388625申请日: 2003-03-17
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公开(公告)号: US20030178990A1公开(公告)日: 2003-09-25
- 发明人: Laurent Dufour
- 申请人: Electricfil Industrie
- 申请人地址: null
- 专利权人: Electricfil Industrie
- 当前专利权人: Electricfil Industrie
- 当前专利权人地址: null
- 优先权: FR0203362 20020319
- 主分类号: G01B007/30
- IPC分类号: G01B007/30 ; G01P003/48
摘要:
The invention relates to a position and/or speed sensor comprising: a mobile target (2) a first permanent magnet (5) at least a second permanent magnet (11) and a probe (4) sensitive to the direction and intensity of a magnetic induction, and placed along the OZ axis such that when there is no tooth, the magnetic induction created by the first magnet passes through the probe along a direction opposite to the direction of magnetization. Magnetic inductions created by the permanent magnets (5, 11) have approximately equal values but in the opposite direction and in the presence of a tooth the absolute value of the variation of the magnetic induction detected by the probe (4) is at least greater than a trip threshold.
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