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公开(公告)号:US4654525A
公开(公告)日:1987-03-31
申请号:US521933
申请日:1983-08-10
申请人: Kiyoshi Ebina , Kazuhira Nakao , Zempei Tani
发明人: Kiyoshi Ebina , Kazuhira Nakao , Zempei Tani
CPC分类号: G01D5/24476 , G01D5/36 , G01P3/486 , H03M1/30
摘要: An optical rotary encoder includes a slit plate having a plurality of circumferentially aligned slits of a pitch P, a light emitting diode, and a light responsive section. The light responsive section includes four photodiodes formed on a single substrate. The four photodiodes are aligned in the tangential direction of the slit plate with the interval corresponding to 1/4 P. Output signals derived from each of the four photodiodes are introduced into a detection circuit for determining the angular position and velocity of a rotating shaft to which the slit plate is secured.
摘要翻译: 光学旋转编码器包括具有间距P,发光二极管和光响应部分的多个周向排列的狭缝的狭缝板。 光响应部分包括形成在单个基板上的四个光电二极管。 四个光电二极管在狭缝板的切线方向上以对应于1/4的间隔对准。从四个光电二极管中的每一个导出的输出信号被引入检测电路,用于确定旋转轴的角位置和速度 狭缝板被固定。