发明名称 |
Encoder |
摘要 |
An encoder having an optical measuring part establishing a vernier relationship between a code plate and a line sensor, and counters for obtaining a course reading from time serial output signals of the line sensor and a fine reading from the vernier relationship. Correction data including a change component in a magnification of a lens system are obtained from a counter. The correction data and the fine reading are supplied to a converting circuit to provide a corrected fine reading.
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申请公布号 |
US4507647(A) |
申请公布日期 |
1985.03.26 |
申请号 |
US19810256928 |
申请日期 |
1981.04.23 |
申请人 |
TOKYO KAGAKU KIKAI K.K. |
发明人 |
MINAMI, MASANA;TAMAKI, HIROSHI;SASAKI, TSUNEO;KIMURA, KAZUAKI |
分类号 |
G01D5/38;G01B11/00;G01D5/245;G01D5/347;G01D5/36;H03M1/00;(IPC1-7):H03K13/18;G01D5/34 |
主分类号 |
G01D5/38 |
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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