发明名称 PRESSURE TRANSDUCER PROVIDED WITH A PIEZOELECTRIC ELEMENT FOR THE DETECTION OF ERRORS IN SEPARATION MEMBRANES
摘要 <p>The pressure transducer provided with a measuring chamber is separated by a medium which is to be measured by a separation membrane. A piezoelectric element is arranged on the measuring chamber which is filled with silicone oil, thereby enabling the specific volume of said chamber to be modified. An adjustable path of the measuring signal is compared to a reference path and considerable deviations indicate an error on the membrane. As a result, the state of the separation membrane can be monitored when the pressure transducer is in the installed state.</p>
申请公布号 EP1664715(B1) 申请公布日期 2010.04.21
申请号 EP20040764815 申请日期 2004.09.03
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 KUMPFMUELLER, HANS-GEORG
分类号 G01L27/00;G01L9/00 主分类号 G01L27/00
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