发明名称 |
Absolute signal detecting method and absolute encoder |
摘要 |
A code plate has an m-bit signal track read out in parallel for providing the starting position of an AC servo motor for commencing rotation when power is first turned ON. An n-bit signal track accompanied by an incremental signal track is provided on the code plate with the n-bit track read out serially, converted to pure binary in parallel, and used once rotation of the servo motor commences to provide the initial absolute value of the encoder. To this n-bit initial value is added signals from the incremental track upon continued rotation of the code plate.
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申请公布号 |
US5774068(A) |
申请公布日期 |
1998.06.30 |
申请号 |
US19950560575 |
申请日期 |
1995.11.20 |
申请人 |
TAMAGAWA SEIKI KABUSHIKI KAISHA |
发明人 |
SEKI, SHIGEO |
分类号 |
G01D5/245;H03M1/28;H03M1/30;(IPC1-7):G08C19/00 |
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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