发明名称 |
ROTARY SENSOR AND MEASUREMENT CIRCUIT THEREOF |
摘要 |
<p>A rotation sensor (10) provided with a first rotor (11) fixed to a predetermined position in the axial direction of the shaft, a second rotor (12) fixed to the shaft (5) adjoining the first rotor, and a magnetic material core (13) having a resonance coil (13c) arranged around the first rotor and forming a magnetic circuit working with the first rotor. The first rotor (11) is formed by a magnetic material comprised of an insulator, an irregular magnetic field is formed with the magnetic material core, and the second rotor (12) is provided with a conductor cutting across areas of different intensities of the irregular magnetic field in accordance with the difference of the angle of rotation when a difference in the angle of relative rotation occurs at a shaft position where the first rotor is fixed and a shaft position where the second rotor is fixed. <IMAGE></p> |
申请公布号 |
EP1113253(A1) |
申请公布日期 |
2001.07.04 |
申请号 |
EP20000940783 |
申请日期 |
2000.06.21 |
申请人 |
THE FURUKAWA ELECTRIC CO., LTD. |
发明人 |
JIN, DONGZHI;ABE, FUMIHIKO;TANAKA, KENGO;MATSUZAKI, KAZUHIKO;HASEGAWA, MASAHIRO;YAMAWAKI, KOSUKE |
分类号 |
G01D5/245;G01L3/10;(IPC1-7):G01L3/10;G01B7/00 |
主分类号 |
G01D5/245 |
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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