发明名称 |
Generator for generating a rotational signal in accordance with changing saturation magnetic flux density of a magnetic member |
摘要 |
A magnetic member preferably comprising an amorphous metal material is mounted adjacent a rotatable member carrying at least one permanent magnet having N and S poles alternating around its circumference. The alignment of N and S poles with opposite end portions of the amorphous metal will decrease the saturation magnetic flux density of the amorphous metal to thereby alter the impedance of at least one electrical coil surrounding the amorphous material. The impedance of the amorphous material will thus modulate during rotation of the rotatable member at a frequency proportional to the frequency of rotation.
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申请公布号 |
US4525670(A) |
申请公布日期 |
1985.06.25 |
申请号 |
US19820399145 |
申请日期 |
1982.07.16 |
申请人 |
AISIN SEIKI KABUSHIKI KAISHA |
发明人 |
MIYAGAWA, SEIICHI;NAKANE, TAKESHI |
分类号 |
G01P3/487;(IPC1-7):G01B7/14;G01P3/48 |
主分类号 |
G01P3/487 |
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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