JPS5669528A - Pressure transmission device - Google Patents

Pressure transmission device

Info

Publication number
JPS5669528A
JPS5669528A JP14552879A JP14552879A JPS5669528A JP S5669528 A JPS5669528 A JP S5669528A JP 14552879 A JP14552879 A JP 14552879A JP 14552879 A JP14552879 A JP 14552879A JP S5669528 A JPS5669528 A JP S5669528A
Authority
JP
Japan
Prior art keywords
pressure
throttle
sealing liquid
resisting part
volume change
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
JP14552879A
Other languages
Japanese (ja)
Inventor
Hiroyasu Uchida
Yoshiki Yamamoto
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 JP14552879A priority Critical patent/JPS5669528A/en
Publication of JPS5669528A publication Critical patent/JPS5669528A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To carry out the measurement of high accuracy and high reliability and stability by providing a flexible pressure-volume change element so as to bring into contact with the sealing liquid to prevent the influence of vibration and temperature and the like to a pressure sensor.
CONSTITUTION: A pressure receiving bellows 18 of pressure-volume change element is displaced so as to make the pressure slope between the liquid contact diaphragm 7 and the throttle resisting part 12 generated by the change of pressure to be measured smaller, and the movement of the sealing liquid 8 corresponding to the change of volume due to this displacement is generated in the throttle resisting part 12 to obtain balancing again. This volume change becomes several hundreds times in comparison with only the case of semiconductor sensor 4 even when the pressure resistance of the pressure receiving bellows 18 is higher, the flow rate of the throttle resisting part 12 becomes large, and the damper effect is obtained, and the temperature expanding amount of the sealing liquid 8 to the semiconductor sensor 4 is also absorbed to the replacing device 6 by passing through the throttle resisting part 12. Thus, pulsating pressure and temperature rise and other influence of vibration or the sealing liquid are prevented and the measurement of high accuracy and high reliability can be done stably.
COPYRIGHT: (C)1981,JPO&Japio
JP14552879A 1979-11-12 1979-11-12 Pressure transmission device Pending JPS5669528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14552879A JPS5669528A (en) 1979-11-12 1979-11-12 Pressure transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14552879A JPS5669528A (en) 1979-11-12 1979-11-12 Pressure transmission device

Publications (1)

Publication Number Publication Date
JPS5669528A true JPS5669528A (en) 1981-06-10

Family

ID=15387297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14552879A Pending JPS5669528A (en) 1979-11-12 1979-11-12 Pressure transmission device

Country Status (1)

Country Link
JP (1) JPS5669528A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125852U (en) * 1982-02-18 1983-08-26 大倉電気株式会社 pressure detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125852U (en) * 1982-02-18 1983-08-26 大倉電気株式会社 pressure detector

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