发明名称 |
HIGHLY SENSITIVE AMR BRIDGE FOR GEAR TOOTH SENSOR |
摘要 |
<p>An AMR gear tooth rotation sensor and a method for utilizing it are disclosed. These facilitate easy manufacture of the device without sacrificing either high sensitivity or high signal output. This is achieved by forming individual sensing elements out of AMR stripes and then connecting four such sensing elements as a Wheatstone bridge. The latter is attached to a permanent magnet that provides a bias field whose value rises and falls as wheel teeth and valleys (respectively) move past the rotation sensor.</p> |
申请公布号 |
WO2009157991(A1) |
申请公布日期 |
2009.12.30 |
申请号 |
WO2009US03736 |
申请日期 |
2009.06.23 |
申请人 |
MAGIC TECHNOLOGIES, INC.;GUO, YIMIN;GORMAN, GRACE |
发明人 |
GUO, YIMIN;GORMAN, GRACE |
分类号 |
G01P3/48 |
主分类号 |
G01P3/48 |
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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