公开(公告)号：US09983080B2

公开(公告)日：2018-05-29

申请号：US14955073

申请日：2015-12-01

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yih-Hsing Wang ,  Wen-Chueh Pan ,  Ming-June Lin ,  Jen-Chieh Li ,  Tien-Fu Wu ,  Tsan-Tung Chen

IPC: G01L11/00 ,  G01L27/00

CPC classification number: G01L11/006 ,  G01L9/007 ,  G01L9/0076 ,  G01L19/04 ,  G01L27/002

Abstract: A high-temperature gas pressure measuring method includes a pressure measuring gas housing dividing step for dividing a pressure measuring gas housing into a pressure measuring room and a pressure referring room by a metal diaphragm; a gas introducing step for introducing high temperature gas into the pressure measuring room and introducing a reference pressure gas into the pressure referring room; a displacement measuring step for measuring a displacement of the metal diaphragm, wherein the displacement is caused by pressure difference between the two rooms in pressure measuring gas housing; and a pressure determining step for measuring the pressure of a high-temperature and/or corrosive to-measure pressure gas. The method dispenses with any corrosion-resistant and heat-resistant pressure sensing component and thus cuts costs.