发明名称 |
Position sensor for electromagnetic actuator to detect a position of a shaft |
摘要 |
A position sensor includes a shaft to be detected, a first magnet being fixed to the shaft and having a first polarity vector parallel to an axis of the shaft, a second magnet being disposed opposite to the first magnet and having a second polarity vector crossing the first polarity vector substantially orthogonally three-dimensionally, and first and second semiconductor magnetoresistive elements being disposed over the second magnet and functioning as a magnetoelectric transducer having a magnetosensitive axis substantially orthogonal to the first and second polarity vectors. The first and second elements generate an output responsive to an axial movement of the shaft.
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申请公布号 |
US6690158(B2) |
申请公布日期 |
2004.02.10 |
申请号 |
US20020089672 |
申请日期 |
2002.08.27 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SAITO KIYOSHI;UEDA SHINJIRO;MATSUURA AKIRA;MATSUKAWA YASUNORI;JITOSHO NORIYUKI |
分类号 |
G01B7/00;G01D5/14;G01D5/16;G01D5/18;(IPC1-7):G01B7/14;G01B7/30 |
主分类号 |
G01B7/00 |
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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