发明名称 |
Method and system for determining the orientation of magnetic fields by means of GMR sensors |
摘要 |
The invention relates to a method and a system for determining the orientation of an external magnetic field by means of giant magneto-resistor (GMR) sensors. A sensor circuit is provided with two or more sub-circuits each having two GMR sensors connected in series. Three respective sensor voltages are obtained and a scaling factor is determined from differences in these voltages. An external magnetic field orientation is determined based on a scaling factor applied to the difference voltages. The inventive method enables signals from the GRM sensors to be reprocessed easily in order to compensate the temperature dependence of the signals.
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申请公布号 |
US6882146(B2) |
申请公布日期 |
2005.04.19 |
申请号 |
US20030332190 |
申请日期 |
2003.01.06 |
申请人 |
INFINEON TECHNOLOGIES AG |
发明人 |
MAIWALD HUBERT |
分类号 |
G01R33/09;(IPC1-7):G01R33/02 |
主分类号 |
G01R33/09 |
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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