发明名称 |
Induced current position sensor having a closed magnetic path |
摘要 |
There is provided an induced current position transducer having an improved signal intensity and durability to gap variations. This can be achieved by preventing harmful diffusion of magnetic fluxes to reduce a loss due to leakage fluxes and forming an efficient closed magnetic path between a magnetic field generator and a magnetic flux sensor. A high permeable substance is disposed in a target magnetic path on members of a read head and a scale. This arrangement can suppress a loss due to leakage fluxes caused from diffusion of magnetic fluxes occurred in the conventional winding structure, improving a signal intensity of a magnetic flux and reducing an affection from an external magnetic flux.
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申请公布号 |
US6531866(B2) |
申请公布日期 |
2003.03.11 |
申请号 |
US20010892441 |
申请日期 |
2001.06.28 |
申请人 |
MITUTOYO CORPORATION |
发明人 |
MIYATA TOSHIHARU;OKAMOTO MASAYOSHI |
分类号 |
G01B7/00;G01D5/20;G01D5/245;(IPC1-7):G01B7/14 |
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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