发明名称 |
Position measuring device |
摘要 |
<p>A scanning unit (10) includes a first scanning device which generates a reference-pulse signal, and a second scanning device which generates incremental signals. Each incremental graduation (33.2) of each of the two incremental-graduation tracks of a displaceable reflection-measuring graduation (30) is arranged to be acted upon at least once in an incremental-signal scanning field by a scanning beam to generate incremental signals.</p> |
申请公布号 |
EP1923673(A2) |
申请公布日期 |
2008.05.21 |
申请号 |
EP20070019810 |
申请日期 |
2007.10.10 |
申请人 |
DR. JOHANNES HEIDENHAIN GMBH |
发明人 |
HOLZAPFEL, WOLFGANG;HERMANN, MICHAEL;SAENDIG, KARSTEN |
分类号 |
G01D5/38;G01D5/244;G01D5/245;G01D5/36 |
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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