发明名称 SPAN LINE PRESSURE EFFECT COMPENSATION FOR DIAPHRAGM PRESSURE SENSOR
摘要 A differential pressure sensor for sensing a differential pressure of a process fluid, includes a sensor body having a sensor cavity formed therein with a cavity profile. A diaphragm in the sensor cavity deflects in response to an applied differential pressure. The diaphragm has a diaphragm profile. A gap formed between the cavity profile and the diaphragm profile changes as a function of the differential pressure. At least one of the cavity profile and diaphragm profile changes as a function of a line pressure to compensate for changes in the gap due to deformation of the sensor body from the line pressure.
申请公布号 EP3123134(A1) 申请公布日期 2017.02.01
申请号 EP20150704416 申请日期 2015.01.22
申请人 Rosemount Inc. 发明人 WILLCOX, Charles Ray
分类号 G01L9/00;G01L19/02 主分类号 G01L9/00
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