发明名称 DIFFERENTIAL-PRESSURE MEASURING ASSEMBLY HAVING EFFECTIVE-PRESSURE LINES AND METHOD FOR DETECTING PLUGGED EFFECTIVE-PRESSURE LINES
摘要 A differential-pressure measuring assembly comprising a differential-pressure measuring transducer for detecting the difference between the first media pressure and a second media pressure and for providing a differential-pressure measurement signal that depends on the difference between the first media pressure and the second media pressure; a first effective-pressure line, which is connected to a first pressure inlet of the differential-pressure measuring transducer in order to apply the first media pressure to the differential-pressure measuring transducer; a second effective-pressure line, which is connected to a second pressure inlet of the differential-pressure measuring transducer in order to apply the second media pressure to the differential-pressure measuring transducer; at least one temperature sensor for outputting a temperature signal that correlates with a temperature of the effective-pressure lines; and a processing unit for processing the differential-pressure measurement signal and the temperature signal; wherein the processing unit is designed to detect a significant correlation between a change in the temperature signal and the differential-pressure signal on the basis of the differential-pressure measurement signal and the temperature signal, and to assess the detection of a significant correlation as an indication of a plugged effective-pressure line.
申请公布号 EP3044559(A1) 申请公布日期 2016.07.20
申请号 EP20140749851 申请日期 2014.08.11
申请人 ENDRESS+HAUSER GMBH+CO. KG 发明人 PARROTTO, DAVIDE
分类号 G01L19/12;G01F25/00;G01L27/00 主分类号 G01L19/12
代理机构 代理人
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