Title:
PRESSURE GAUGE FOR MEASURING DIFFERENTIAL PRESSURE
Document Type and Number:
Japanese Patent JP2015114156
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure gauge for measuring differential pressure, which can output two current signals and which prevents a problem caused by oil for pressure transmission.SOLUTION: A pressure gauge 1 for measuring differential pressure includes: two pressure detection units 30 each of which has a pressure receiving face and which output pressure signals according to pressure applied to the pressure receiving faces; and a body part 10 which transmits a differential pressure current signal representing a difference in the pressure applied to the pressure receiving faces of both pressure detection units 30 and a pressure current signal representing the pressure applied to the pressure receiving face of one of the pressure detection units 30 on the basis of the pressure signals output by each of the pressure detection units 30. The body part 10 is configured in such a manner that a ground loop is not formed.
Inventors:
YAMADA KAZUKI
TAKAHASHI KOJI
TAKAHASHI KOJI
Application Number:
JP2013255178A
Publication Date:
June 22, 2015
Filing Date:
December 10, 2013
Export Citation:
Assignee:
VALCOM KK
International Classes:
G01L13/06
Domestic Patent References:
| JPH03233335A | 1991-10-17 | |||
| JP2002123885A | 2002-04-26 | |||
| JPS62272399A | 1987-11-26 | |||
| JPS58109811A | 1983-06-30 |
Foreign References:
| US20040254748A1 | 2004-12-16 |
Attorney, Agent or Firm:
Kazunobu Sera
Hiroyasu Kanai
Koichiro Sakai
Akira Hirakawa
Hiroyasu Kanai
Koichiro Sakai
Akira Hirakawa