发明授权
US5714883A Rotational sensor including axially adjacent targets one of which having
invariant permeability the other having varying permeability as they
rotate
失效
旋转传感器包括轴向相邻的靶，其中一个具有不变的磁导率，另一个在它们旋转时具有变化的磁导率
- 专利标题： Rotational sensor including axially adjacent targets one of which having invariant permeability the other having varying permeability as they rotate
- 专利标题（中）： 旋转传感器包括轴向相邻的靶，其中一个具有不变的磁导率，另一个在它们旋转时具有变化的磁导率
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申请号： US580037申请日： 1995-12-20
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公开(公告)号： US5714883A公开(公告)日： 1998-02-03
- 发明人: Thaddeus Schroeder , Bruno Patrice Bernard Lequesne
- 申请人： Thaddeus Schroeder , Bruno Patrice Bernard Lequesne
- 申请人地址： MI Detroit
- 专利权人： General Motors Corporation
- 当前专利权人： General Motors Corporation
- 当前专利权人地址： MI Detroit
- 主分类号： F02P7/067
- IPC分类号： F02P7/067 ; G01D5/14 ; G01D5/16 ; G01B7/14
摘要：
A rotation sensor has a target wheel including first and second tracks and a dual-element magnetoresistive sensor. Each individual magnetoresistive element is aligned with a respective track of the target wheel to provide substantially inverse resistive changes with the passage of the wheel. One of the tracks is characterized by alternating high and low permeability, such as by a toothed section, and the other of the tracks is characterized by invariant permeability.
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