发明名称 |
Variable-reluctance resolver and rotational angle sensor using same |
摘要 |
A variable-reluctance resolver includes a rotor and a stator. The rotor includes axially connected first and second rotor portions. The first rotor portion has n salient poles provided about a center axis at uniform angular intervals, where n is an arbitrary integer not less than 3. The second rotor portion has (n-1) salient poles provided about the center axis at uniform angular intervals. The stator has a plurality of magnetic poles provided on an inner circumferential surface thereof. An excitation coil and output coils for shaft angle multipliers of nx and (n-1)x are provided on the magnetic poles in order to output sine and cosine outputs having a phase difference of 90 degrees therebetween. A rotational angle sensor includes the VR resolver and a calculation section for calculating a resolver signal for a shaft angle multiplier of 1x from signals output from the VR resolver.
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申请公布号 |
US2005212511(A1) |
申请公布日期 |
2005.09.29 |
申请号 |
US20050060405 |
申请日期 |
2005.02.18 |
申请人 |
KUJIRAI HIROYUKI;MIYA TAIICHI;MATSUURA MUTSUMI;AOKI NAO |
发明人 |
KUJIRAI HIROYUKI;MIYA TAIICHI;MATSUURA MUTSUMI;AOKI NAO |
分类号 |
G01B7/30;G01B7/00;G01D5/20;G05B1/06;(IPC1-7):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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