发明授权
- 专利标题： Digital displacement sensor with zigzag coils
- 专利标题（中）： 具有锯齿形线圈的数字位移传感器
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申请号： US524867申请日： 1974-11-18
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公开(公告)号： US4005396A公开(公告)日： 1977-01-25
- 发明人: Hideo Fujiwara , Yukio Ichinose , Kazuo Ichino , Isamu Orita , Yasutaro Uesaka , Michiyasu Itoh , Hisashi Thuruoka
- 申请人： Hideo Fujiwara , Yukio Ichinose , Kazuo Ichino , Isamu Orita , Yasutaro Uesaka , Michiyasu Itoh , Hisashi Thuruoka
- 申请人地址： JA
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JA
- 优先权： JA48-128903 19731116; JA48-143479 19731224; JA48-143480 19731224
- 主分类号： G01D5/20
- IPC分类号： G01D5/20 ; H03M1/00 ; G08C9/04 ; G08C19/28
摘要：
A digital displacement sensor includes a plurality of zigzag coils provided with projecting or convex portions having different pitches and arranged on the surface of a flat plate. A magnetic head consisting of a magnetic body and a coil is wound around part of the magnetic body, the magnetic head being supported so as to be moved, while maintaining a given gap from the surface of the flat plate, whereby a digital signal corresponding to the displacement of the magnetic head is sensed by means of a plurality of zigzag coils.
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