发明名称 Position measuring device including a scale having an integrated reference marking
摘要 A scale and a position-measuring device include the shifting of reference markings in graduation tracks, offset transversely with respect to the measuring direction, by fractions of the interval of the reference markings within a graduation track. It is thus possible to eliminate, or at least to markedly reduce, negative effects of the disturbance of the periodicity of a graduation track by the reference markings.
申请公布号 US7667188(B2) 申请公布日期 2010.02.23
申请号 US20080120126 申请日期 2008.05.13
申请人 DR. JOHANNES HEIDENHAIN GMBH 发明人 TOVAR HEINZ
分类号 G01D5/34;G01J9/00;H03M1/22 主分类号 G01D5/34
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