CA1057971A - Differential pressure cell with diaphragm tension and overpressure protection - Google Patents

Differential pressure cell with diaphragm tension and overpressure protection

Info

Publication number
CA1057971A
CA1057971A CA260,862A CA260862A CA1057971A CA 1057971 A CA1057971 A CA 1057971A CA 260862 A CA260862 A CA 260862A CA 1057971 A CA1057971 A CA 1057971A
Authority
CA
Canada
Prior art keywords
pressure
chamber
diaphragm
measuring
auxiliary
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.)
Expired
Application number
CA260,862A
Other languages
English (en)
French (fr)
Inventor
Tadanori Yuhara
Takeshi Yasuhara
Mitsuru Tamai
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Application granted granted Critical
Publication of CA1057971A publication Critical patent/CA1057971A/en
Expired 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/007—Transmitting or indicating the displacement of flexible diaphragms using variations in inductance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
CA260,862A 1975-09-09 1976-09-09 Differential pressure cell with diaphragm tension and overpressure protection Expired CA1057971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50109112A JPS5233575A (en) 1975-09-09 1975-09-09 Differential pressure measuring device

Publications (1)

Publication Number Publication Date
CA1057971A true CA1057971A (en) 1979-07-10

Family

ID=14501855

Family Applications (1)

Application Number Title Priority Date Filing Date
CA260,862A Expired CA1057971A (en) 1975-09-09 1976-09-09 Differential pressure cell with diaphragm tension and overpressure protection

Country Status (7)

Country Link
US (1) US4072057A (enExample)
JP (1) JPS5233575A (enExample)
CA (1) CA1057971A (enExample)
DE (1) DE2640235C2 (enExample)
FR (1) FR2323994A1 (enExample)
GB (1) GB1532837A (enExample)
IT (1) IT1063497B (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829862B2 (ja) * 1977-05-14 1983-06-25 富士電機株式会社 圧力測定装置
JPS5815049B2 (ja) * 1977-12-20 1983-03-23 富士電機株式会社 差圧測定装置
US4370890A (en) * 1980-10-06 1983-02-01 Rosemount Inc. Capacitive pressure transducer with isolated sensing diaphragm
US4735098A (en) * 1985-11-19 1988-04-05 Kavlico Corporation Dual diaphragm differential pressure transducer
US4996627A (en) * 1989-01-30 1991-02-26 Dresser Industries, Inc. High sensitivity miniature pressure transducer
US4949581A (en) * 1989-06-15 1990-08-21 Rosemount Inc. Extended measurement capability transmitter having shared overpressure protection means
US5022270A (en) * 1989-06-15 1991-06-11 Rosemount Inc. Extended measurement capability transmitter having shared overpressure protection means
US4972717A (en) * 1989-09-18 1990-11-27 Texas Instruments Incorporated Pressure transducer apparatus and method for making same
DE3932443C1 (enExample) * 1989-09-28 1990-12-20 Endress U. Hauser Gmbh U. Co, 7864 Maulburg, De
DE3933512A1 (de) * 1989-10-06 1991-04-18 Endress Hauser Gmbh Co Differenzdruckmessgeraet
US5323656A (en) * 1992-05-12 1994-06-28 The Foxboro Company Overpressure-protected, polysilicon, capacitive differential pressure sensor and method of making the same
DE29711759U1 (de) * 1997-07-04 1998-08-06 Siemens AG, 80333 München Differenzdruck-Meßumformer
US6047244A (en) * 1997-12-05 2000-04-04 Rosemount Inc. Multiple range transition method and apparatus for process control sensors
US6038961A (en) * 1998-03-02 2000-03-21 Rosemount Inc. Flush mount remote seal
US6120033A (en) * 1998-06-17 2000-09-19 Rosemount Inc. Process diaphragm seal
DE20019067U1 (de) * 2000-11-09 2001-01-18 Abb Patent Gmbh, 68309 Mannheim Druckmesseinrichtung
DE10249238B4 (de) * 2002-10-23 2006-09-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sensorchip für einen Differenzdrucksensor mit beidseitigem Überlastschutz
US7188529B2 (en) * 2005-01-25 2007-03-13 Yokogawa Electric Corporation Differential pressure measuring apparatus
DE102014104831A1 (de) * 2014-04-04 2015-10-08 Endress + Hauser Gmbh + Co. Kg Differenzdrucksensor
US10378987B2 (en) 2017-03-10 2019-08-13 Honeywell International Inc. Pressure sensor with flow porting having integral flame-proof safety mechanism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999386A (en) * 1956-11-02 1961-09-12 Trans Sonics Inc High precision diaphragm type instruments
US3400588A (en) * 1965-05-27 1968-09-10 Lummus Co Fluid pressure gauge
US3313158A (en) * 1965-07-23 1967-04-11 Statham Instrument Inc High overload pressure transducer
US3618390A (en) * 1969-10-27 1971-11-09 Rosemount Eng Co Ltd Differential pressure transducer
US3712143A (en) * 1971-12-21 1973-01-23 Honeywell Inc Differential pressure responsive apparatus

Also Published As

Publication number Publication date
FR2323994A1 (fr) 1977-04-08
JPS562890B2 (enExample) 1981-01-22
US4072057A (en) 1978-02-07
FR2323994B3 (enExample) 1980-10-17
IT1063497B (it) 1985-02-11
DE2640235A1 (de) 1977-03-31
DE2640235C2 (de) 1981-09-24
GB1532837A (en) 1978-11-22
JPS5233575A (en) 1977-03-14

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