JPS52140377A - Pressure fluctuation detector - Google Patents

Pressure fluctuation detector

Info

Publication number
JPS52140377A
JPS52140377A JP5647176A JP5647176A JPS52140377A JP S52140377 A JPS52140377 A JP S52140377A JP 5647176 A JP5647176 A JP 5647176A JP 5647176 A JP5647176 A JP 5647176A JP S52140377 A JPS52140377 A JP S52140377A
Authority
JP
Japan
Prior art keywords
pressure fluctuation
fluctuation detector
pressure
diaphragm
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5647176A
Other languages
Japanese (ja)
Inventor
Yoshiaki Amada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5647176A priority Critical patent/JPS52140377A/en
Publication of JPS52140377A publication Critical patent/JPS52140377A/en
Pending legal-status Critical Current

Links

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  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE: To detect fluctuating pressure in a vessel by applying measured pressure on the front face of diaphragm and the average pressure of measured pressure on the back face of diaphragm.
COPYRIGHT: (C)1977,JPO&Japio
JP5647176A 1976-05-19 1976-05-19 Pressure fluctuation detector Pending JPS52140377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5647176A JPS52140377A (en) 1976-05-19 1976-05-19 Pressure fluctuation detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5647176A JPS52140377A (en) 1976-05-19 1976-05-19 Pressure fluctuation detector

Publications (1)

Publication Number Publication Date
JPS52140377A true JPS52140377A (en) 1977-11-22

Family

ID=13028010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5647176A Pending JPS52140377A (en) 1976-05-19 1976-05-19 Pressure fluctuation detector

Country Status (1)

Country Link
JP (1) JPS52140377A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007286067A (en) * 1996-05-03 2007-11-01 Vision Products Pty Ltd Detection of floating contaminants
JP2010139285A (en) * 2008-12-09 2010-06-24 Yazaki Corp Determination device and pressure signal output device
US8743366B2 (en) 2012-08-31 2014-06-03 Fenwal Controls Of Japan, Ltd. Light emission portion, photoelectric smoke sensor, and suction-type smoke sensing system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495074A (en) * 1972-04-26 1974-01-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495074A (en) * 1972-04-26 1974-01-17

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007286067A (en) * 1996-05-03 2007-11-01 Vision Products Pty Ltd Detection of floating contaminants
JP2010139285A (en) * 2008-12-09 2010-06-24 Yazaki Corp Determination device and pressure signal output device
US8743366B2 (en) 2012-08-31 2014-06-03 Fenwal Controls Of Japan, Ltd. Light emission portion, photoelectric smoke sensor, and suction-type smoke sensing system

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