公开(公告)号：US20170343437A1

公开(公告)日：2017-11-30

申请号：US15603652

申请日：2017-05-24

Applicant: DENSO CORPORATION

Inventor： Yasutake URA

IPC: G01L7/02 ,  G01L19/14

CPC classification number: G01L7/022 ,  B81B2201/0264 ,  G01L7/024 ,  G01L19/0046 ,  G01L19/04 ,  G01L19/146 ,  G01L23/10

Abstract: A pressure sensor outputting an electrical signal upon a fluid pressure in a target space includes a diaphragm having a pressure receiving surface disposed in the target space for receiving a fluid pressure, and a back surface on a back side of the pressure receiving surface, an inner member disposed to face the back surface and a diaphragm supporting portion connected to the diaphragm. The diaphragm includes a center portion disposed to face the inner member and is distorted as a concave shape toward the detecting direction because of the heat transmitted to the pressure receiving surface and the distortion of the center portion as a concave shape toward the detecting direction. A contacting portion provided on a connecting portion between the center portion and the outside portion is in contact with the inner member.