公开(公告)号：WO0057151B1

公开(公告)日：2001-01-25

申请号：PCT/US0007646

申请日：2000-03-23

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： STARK KEVIN C ,  IZADNEGAHDAR ALAIN A

IPC: G01L9/00

CPC classification number: G01L9/0073

Abstract: A pressure sensor for measuring the differential pressure of a pair of fluids including a housing having an internal opening, an electrically conductive diaphragm disposed in the opening and separating the opening into an upper chamber and a lower chamber, and an upper conductor located in the upper chamber and forming an upper capacitor with the diaphragm. The sensor further includes a lower conductor located in the lower chamber and forming a lower capacitor with the diaphragm. When one of each of the pair of fluids is received in one of the upper and lower chambers, the pressures of the fluids to be measured can deflect the diaphragm and thereby cause a change in capacitance in at least one of the capacitors.

Abstract translation: 一种用于测量一对流体的压力差的压力传感器，包括具有内部开口的壳体，设置在开口中的导电隔膜，并将开口分隔成上部腔室和下部腔室，以及位于上部 并且与隔膜形成上电容器。 传感器还包括位于下腔室中的下导体，并与隔膜形成下电容器。 当一对流体中的每一个中的一个被接收在上腔室和下腔室中的一个中时，待测量的流体的压力可以使膜片偏转，从而在至少一个电容器中引起电容变化。

公开(公告)号：AU3911400A

公开(公告)日：2000-10-09

申请号：AU3911400

申请日：2000-03-23

Applicant: ROSEMOUNT AEROSPACE INC

Inventor： STARK KEVIN C ,  IZADNEGAHDAR ALAIN A

IPC: G01L9/00