发明名称 Position measuring device
摘要 A position measuring device including a scale carrier member and a scanning device for scanning the scale. A temperature difference is generated between the scale carrier member and/or the scanning device, on the one hand, and a housing surrounding the scale carrier member and the scanning device, on the other hand. The temperature difference ensures that condensate is always precipitated on the colder housing.
申请公布号 US4982508(A) 申请公布日期 1991.01.08
申请号 US19890370273 申请日期 1989.06.22
申请人 DR. JOHANNES HEIDENHAIN GMBH 发明人 NELLE, GUENTHER;SCHMITT, WALTER;SCHOPF, REINHOLD;WEISS, JOSEF
分类号 G01D5/36;G01B5/00;G01B11/00;G01B21/02;G01D5/245;G01D5/347 主分类号 G01D5/36
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