发明公开
- 专利标题： MAGNETIC FIELD SENSOR FOR SENSING A MOVEMENT OF A TARGET OBJECT
- 专利标题（中）： 用于感测目标物体运动的磁场传感器
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申请号： EP15853626.8申请日： 2015-10-13
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公开(公告)号： EP3209974A2公开(公告)日： 2017-08-30
- 发明人: FOLETTO, Andrea , VUILLERMET, Yannick , FRIEDRICH, Andreas P.
- 申请人： Allegro Microsystems, LLC
- 申请人地址： 115 Northeast Cutoff Worcester, Massachusetts 01606 US
- 专利权人： Allegro Microsystems, LLC
- 当前专利权人： Allegro Microsystems, LLC
- 当前专利权人地址： 115 Northeast Cutoff Worcester, Massachusetts 01606 US
- 代理机构： South, Nicholas Geoffrey
- 优先权： US201414529606 20141031
- 国际公布： WO2016108992 20160707
- 主分类号： G01D5/16
- IPC分类号： G01D5/16 ; G01D5/14
摘要：
A magnetic field sensor operates as a motion detector for sensing a movement of a ferromagnetic target object having features. The magnetic field sensor has a plurality of magnetoresistance elements to generate, in a first channel, a feature signal indicative of a proximity of a feature of a ferromagnetic target object and, in a second channel, an edge signal indicative of a proximity of an edge of a feature of a ferromagnetic target object.
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