JPS5749829A - Transmitting device for pressure difference - Google Patents

Transmitting device for pressure difference

Info

Publication number
JPS5749829A
JPS5749829A JP12460480A JP12460480A JPS5749829A JP S5749829 A JPS5749829 A JP S5749829A JP 12460480 A JP12460480 A JP 12460480A JP 12460480 A JP12460480 A JP 12460480A JP S5749829 A JPS5749829 A JP S5749829A
Authority
JP
Japan
Prior art keywords
pressure
diaphragm
chambers
main body
transmitting device
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.)
Granted
Application number
JP12460480A
Other languages
Japanese (ja)
Other versions
JPS6147370B2 (en
Inventor
Tomoyuki Hida
Yoshiki Yamamoto
Akira Nagasu
Yoshitaka Matsuoka
Yasushi Shimizu
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 JP12460480A priority Critical patent/JPS5749829A/en
Publication of JPS5749829A publication Critical patent/JPS5749829A/en
Publication of JPS6147370B2 publication Critical patent/JPS6147370B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE:To form the transmitting device with excellent linearity by welding a wave shaped metal diaphragm which receives fluid pressures from two points in a system to one member forming two pressure chambers and compressing the diaphragm with the other member. CONSTITUTION:A pressure difference sensor part 1 enclosing a semiconductor pressure sensor 10 is communicated to a pressure receiving part 2, with high and low pressure chambers 22 amd 32, overload protection chambers 42 and 44, and pressure introducing paths 52 and 54, and high and low pressure sealing parts are formed. Non-compressible silicon oil is filled in the inside. The peripheral parts of the high and low pressure sealing diaphragm 20 and 30 are welded to main bodies 28 and 38. The volume of the overload protection chambers 42 and 44 are larger than the pressure receiving chambers 22 and 32. A diaphragm 40 is not seated by the excessive pressure. The central diaphragm 40 comprises the wave shaped metal. The periphery thereof is welded to the main body 28, and the inside thereof is pushed by the main body 38 to the main body 28. The pressure of the fluid flowed through fluid introducing holes 24 and 34 compresses the diaphragm 20 and 30, and the pressure difference is sensed by the sensor 10. In this constitution, the transmitting device characterized by no zero point change and excellent linearity is formed.
JP12460480A 1980-09-10 1980-09-10 Transmitting device for pressure difference Granted JPS5749829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12460480A JPS5749829A (en) 1980-09-10 1980-09-10 Transmitting device for pressure difference

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12460480A JPS5749829A (en) 1980-09-10 1980-09-10 Transmitting device for pressure difference

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP18757387A Division JPS6345524A (en) 1987-07-29 1987-07-29 Differential pressure transmitter

Publications (2)

Publication Number Publication Date
JPS5749829A true JPS5749829A (en) 1982-03-24
JPS6147370B2 JPS6147370B2 (en) 1986-10-18

Family

ID=14889544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12460480A Granted JPS5749829A (en) 1980-09-10 1980-09-10 Transmitting device for pressure difference

Country Status (1)

Country Link
JP (1) JPS5749829A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59155971A (en) * 1983-02-25 1984-09-05 Hitachi Ltd High pressure resistant pressure sensor
JPS6345524A (en) * 1987-07-29 1988-02-26 Hitachi Ltd Differential pressure transmitter
US9550634B2 (en) 2011-11-16 2017-01-24 Sumitomo Wiring Systems, Ltd. Part feeder and part supply method
DE102020110728A1 (en) 2020-04-20 2021-10-21 Endress+Hauser SE+Co. KG Differential pressure transducer for determining the differential pressure of two pressures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6393214U (en) * 1986-12-10 1988-06-16

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148181A (en) * 1976-05-03 1977-12-09 Honeywell Inc Differential pressure transmitter
JPS54173160U (en) * 1978-05-28 1979-12-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148181A (en) * 1976-05-03 1977-12-09 Honeywell Inc Differential pressure transmitter
JPS54173160U (en) * 1978-05-28 1979-12-07

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59155971A (en) * 1983-02-25 1984-09-05 Hitachi Ltd High pressure resistant pressure sensor
JPS6345524A (en) * 1987-07-29 1988-02-26 Hitachi Ltd Differential pressure transmitter
US9550634B2 (en) 2011-11-16 2017-01-24 Sumitomo Wiring Systems, Ltd. Part feeder and part supply method
DE102020110728A1 (en) 2020-04-20 2021-10-21 Endress+Hauser SE+Co. KG Differential pressure transducer for determining the differential pressure of two pressures

Also Published As

Publication number Publication date
JPS6147370B2 (en) 1986-10-18

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