发明名称 Method for measuring the thickness of multi-layer films
摘要 A method for capacitively measuring the thickness of multi-layer films (10), the layers (32, 34) the dielectric constants of which differ at least at a particular temperature, wherein, in addition to the capacitive measurement, at least one further thickness measurement is carried out under different conditions, and wherein the thicknesses (d1, d2) of the individual layers is determined by comparing the measurement results and by means of the different dielectric constants.
申请公布号 US6646453(B2) 申请公布日期 2003.11.11
申请号 US20010992337 申请日期 2001.11.06
申请人 PLAST-CONTROL GERAETEBAU GMBH 发明人 MUELLER FRANK;KONERMANN STEFAN;SAPPELT NORBERT
分类号 B29C47/00;B29C47/06;B29C47/92;(IPC1-7):G01R27/26 主分类号 B29C47/00
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