JPS5640734A - Measuring device of differential pressure - Google Patents

Measuring device of differential pressure

Info

Publication number
JPS5640734A
JPS5640734A JP11526879A JP11526879A JPS5640734A JP S5640734 A JPS5640734 A JP S5640734A JP 11526879 A JP11526879 A JP 11526879A JP 11526879 A JP11526879 A JP 11526879A JP S5640734 A JPS5640734 A JP S5640734A
Authority
JP
Japan
Prior art keywords
pressure
linearity
diaphragm
volume constant
pressure sensor
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
JP11526879A
Other languages
Japanese (ja)
Inventor
Shozo Kasai
Yoshitaka Matsuoka
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 JP11526879A priority Critical patent/JPS5640734A/en
Publication of JPS5640734A publication Critical patent/JPS5640734A/en
Pending legal-status Critical Current

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  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE: To enable the measurement with good characteristics, by giving the specified relation among the linearity of pressure sensor, linearity of pressure-volume conversion element, pressure volume constant, and pressure volume constant of seal diaphragm.
CONSTITUTION: The high-pressure side seal disphragm 1A and the low-pressure side seal diaphragm 1B deliver the pressure from the liquid contact section to the center diaphragm 3. The center diaphragm 3 is deformed with the differential pressure between the high and low pressure sides, and this is detected by the pressure sensor 5. When the linearity NLP of the pressure sensor, the linearity NLc of center diaphragm, pressure volume constant Pvfc of center diaphragm, and pressure volume constant Pvfs of seal diaphragm are selected as the relation of equation shown in Figure, the linearity of the difference measuring device of two liquid chambers using the pressure sensor can be increased, enabling highly accurate measurement.
COPYRIGHT: (C)1981,JPO&Japio
JP11526879A 1979-09-10 1979-09-10 Measuring device of differential pressure Pending JPS5640734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11526879A JPS5640734A (en) 1979-09-10 1979-09-10 Measuring device of differential pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11526879A JPS5640734A (en) 1979-09-10 1979-09-10 Measuring device of differential pressure

Publications (1)

Publication Number Publication Date
JPS5640734A true JPS5640734A (en) 1981-04-17

Family

ID=14658456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11526879A Pending JPS5640734A (en) 1979-09-10 1979-09-10 Measuring device of differential pressure

Country Status (1)

Country Link
JP (1) JPS5640734A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0971956A (en) * 1995-09-06 1997-03-18 Kensetsu Kiso Eng Co Ltd Earth-retaining wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0971956A (en) * 1995-09-06 1997-03-18 Kensetsu Kiso Eng Co Ltd Earth-retaining wall

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