发明名称 |
MAGNETIC FIELD SENSOR SYSTEM WITH A BIASING MAGNET PRODUCING A SPATIALLY SYMMETRIC MAGNETIC FIELD WITHIN A PLANE BEING DEFINED BY MAGNETORESISTIVE SENSOR ELEMENTS |
摘要 |
A magnetic field sensor system for measuring rotational movements of a shaft is disclosed. The sensor system includes a biasing magnet configured for generating a biasing magnetic field and a magnetic wheel having a wheel axis and a circumferential surface which comprises a regular structure of teeth and gaps arranged in an alternating manner. The magnetic wheel is attachable to the shaft and is magnetizable by the biasing magnetic field. A magnetoresistive sensor arrangement comprising four magnetoresistive sensor elements being connected with each other in a Wheatstone bridge, respectively two of the magnetoresistive sensor elements being assigned to one half bridge of the Wheatstone bridge. The four magnetoresistive sensor elements are arranged within an x-y plane. |
申请公布号 |
US2014084906(A1) |
申请公布日期 |
2014.03.27 |
申请号 |
US201314017453 |
申请日期 |
2013.09.04 |
申请人 |
NXP B.V. |
发明人 |
RUIGROK JAAP JOSEPHUS MARIA;NAZARIAN ALEXE LEVAN;VANHELMONT FREDERIK WILLEM MAURITS |
分类号 |
G01B7/30 |
主分类号 |
G01B7/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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