发明名称 |
Magnetic rotation angle sensor |
摘要 |
A magnetic rotation angle sensor has a rotor and a stator. Magnets are disposed to supply a magnetic flux that is modulated in accordance with the rotation angle. Magnetic sensor elements detect the magnetic flux and output signals indicative of the rotation angle between the rotor and the stator. External magnetic guides are disposed on both axial sides of the cores. The external magnetic guides provide a magnetic path that runs axially to avoid the magnetic sensor elements. The external magnetic guides are distanced enough from the rotor and the stator to reduce leakage of the magnetic flux supplied by the magnets. The magnets have enough height in magnetized direction so as to reduce short-circuiting leakage of the magnetic flux.
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申请公布号 |
US2002186009(A1) |
申请公布日期 |
2002.12.12 |
申请号 |
US20020162890 |
申请日期 |
2002.06.06 |
申请人 |
MAKINO MASAHIRO;KATO YASUNARI |
发明人 |
MAKINO MASAHIRO;KATO YASUNARI |
分类号 |
G01D5/14;(IPC1-7):G01B7/30;G01R33/07 |
主分类号 |
G01D5/14 |
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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