Title:
PRESSURE TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP2015078944
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure transmission device capable of ensuring suppression of generation of air bubbles in a pressure introduction path, and thereby maintaining pressure transmission characteristics for a long period of time.SOLUTION: A pressure transmission device 1 includes: tubular pressure introduction paths 11 and 11'; an encapsulated liquid L filled in the pressure introduction paths 11 and 11'; pressure-reception diaphragms 13 and 13' provided in a state of closing one of openings of the pressure introduction path 11 or 11', and receiving pressures of measurement fluids Fh and Fl, respectively; a pressure sensor 15 provided at the other opening of each of the pressure introduction paths 11 and 11' in a state of being exposed to the encapsulated liquid L; and a hydrogen-transmission prevention layer 21 provided in each of the pressure-reception diaphragms 13 and 13'. The pressure transmission device 1 further includes a hydrogen storage material provided in each of the pressure introduction paths 11 and 11'.
More Like This:
WO/2015/162113 | DIFFERENTIAL PRESSURE SENSOR |
JPH0344530 | COMPLEX SENSOR |
Inventors:
KUWANA RYO
ARITA SETSUO
BABA ATSUSHI
FUSHIMI ATSUSHI
NIIMA DAISUKE
HANAMI HIDEKI
HARA ISAO
ITO TAKASHI
ARITA SETSUO
BABA ATSUSHI
FUSHIMI ATSUSHI
NIIMA DAISUKE
HANAMI HIDEKI
HARA ISAO
ITO TAKASHI
Application Number:
JP2013217138A
Publication Date:
April 23, 2015
Filing Date:
October 18, 2013
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G01L13/02; G01L19/06
Domestic Patent References:
JP2004361159A | 2004-12-24 | |||
JPH09113394A | 1997-05-02 | |||
JP2004361159A | 2004-12-24 | |||
JPH09113394A | 1997-05-02 | |||
JPH04311542A | 1992-11-04 | |||
JP2008075697A | 2008-04-03 |
Foreign References:
CN202938959U | 2013-05-15 | |||
CN202938959U | 2013-05-15 |
Attorney, Agent or Firm:
Shinto International Patent Office