发明名称 |
INDUCTIVE POSITION-DETECTING DEVICE |
摘要 |
A coil section (10) includes a primary coil (11) which is magnetically excitable by an AC signal, and secondary coils (12 - 15) which are provided so as to generate an inductive output in response to excitation of the primary coil. A self-oscillation circuit (20), including an inductance element and a capacitor, has incorporated therein the primary coil (11) as the inductance element for self-oscillation. A target section (1) is provided in such a manner that its relative position to the coil section (10) varies according to a position of a target of detection, and the target section includes a magnetically responsive member disposed so that inductance of the secondary coils (12 - 15) is varied according to the relative position. Amplitude levels of the output signals of the secondary coils (12 - 15) are extracted, and position data of the position of the target of detection is obtained on the basis of these amplitude levels. |
申请公布号 |
EP3009804(A1) |
申请公布日期 |
2016.04.20 |
申请号 |
EP20140811621 |
申请日期 |
2014.06.13 |
申请人 |
AMITEQ CO., LTD. |
发明人 |
GOTO, DAISUKE;SAKAMOTO, KAZUYA;SAKAMOTO, HIROSHI;YUASA, YASUHIRO |
分类号 |
G01D5/20;G01B7/00;G01D5/22 |
主分类号 |
G01D5/20 |
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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