发明名称 RELATIVE PRESSURE SENSOR
摘要 A relative pressure sensor for registering pressure of a medium relative to surrounding atmospheric pressure includes: a pressure measuring cell having a measuring membrane and a platform, wherein pressure of the medium can act on a first side of the measuring membrane facing away from the platform, and wherein the platform has a reference air opening, through which surrounding atmospheric pressure can act on a second side of the measuring membrane facing the platform. A support body, through which a reference air duct extends between a first surface section and a second surface section of the support body is provided, wherein the pressure measuring cell is affixed to the support body with a pressure resistant, bonded adhesive. The reference air opening communicates with the reference air duct, in order to form a reference air path to the measuring membrane, wherein the bonded adhesive surrounds the reference air path, and the relative pressure sensor further includes a shield element, which protects the bonded adhesive from direct contact with reference air.
申请公布号 US2011209552(A1) 申请公布日期 2011.09.01
申请号 US200913125413 申请日期 2009.08.12
申请人 ENDRESS + HAUSER GMBH + CO. KG 发明人 THAM ANH TUAN;PARROTTO DAVIDE;PASSLER FRANK;KRUSEMARK OLAF;BUDER ULRICH
分类号 G01L11/02;G01L9/00;G01L9/06;G01L9/12 主分类号 G01L11/02
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