FR2422153A1 - Procede et dispositif de protection contre les surpressions d'un transducteur de transmetteur de pression differentielle - Google Patents

Procede et dispositif de protection contre les surpressions d'un transducteur de transmetteur de pression differentielle

Info

Publication number
FR2422153A1
FR2422153A1 FR7908295A FR7908295A FR2422153A1 FR 2422153 A1 FR2422153 A1 FR 2422153A1 FR 7908295 A FR7908295 A FR 7908295A FR 7908295 A FR7908295 A FR 7908295A FR 2422153 A1 FR2422153 A1 FR 2422153A1
Authority
FR
France
Prior art keywords
bellows
transducer
differential pressure
protection against
pressure transmitter
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
FR7908295A
Other languages
English (en)
Other versions
FR2422153B1 (fr
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.)
Schneider Electric Systems USA Inc
Original Assignee
Foxboro Co
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 Foxboro Co filed Critical Foxboro Co
Publication of FR2422153A1 publication Critical patent/FR2422153A1/fr
Application granted granted Critical
Publication of FR2422153B1 publication Critical patent/FR2422153B1/fr
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
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • G01L19/0618—Overload protection
    • 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)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

La haute pression est introduite en 22 et la basse pression en 24, pour agir sur des membranes 28 et 34 qui prennent appui sur une plaque d'appui centrale 20. La pression sur la membrane 28 est transmise au transducteur 12 et à l'extérieur du soufflet 52. La pression sur la membrane 34 est transmise au transducteur 12 et à l'intérieur du soufflet 52. Le soufflet est précontraint en compression par un ressort également précontraint en compression entre un point fixe et une bague qui porte contre un point fixe. Si la différence entre 22 et 24 reste dans des limites prédéterminées, le soufflet ne se déforme pas et les pressions sont transmises intégralement au transducteur 12. Si cette différence dépasse la limite positive, le soufflet se comprime et, inversement, si cette différence dépasse la limite négative, le ressort se comprime.
FR7908295A 1978-04-03 1979-04-03 Procede et dispositif de protection contre les surpressions d'un transducteur de transmetteur de pression differentielle Granted FR2422153A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/892,811 US4135407A (en) 1978-04-03 1978-04-03 Method and apparatus for overrange protection of the transducer in a differential pressure transmitter

Publications (2)

Publication Number Publication Date
FR2422153A1 true FR2422153A1 (fr) 1979-11-02
FR2422153B1 FR2422153B1 (fr) 1983-12-16

Family

ID=25400535

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908295A Granted FR2422153A1 (fr) 1978-04-03 1979-04-03 Procede et dispositif de protection contre les surpressions d'un transducteur de transmetteur de pression differentielle

Country Status (8)

Country Link
US (1) US4135407A (fr)
JP (2) JPS54138965A (fr)
CA (1) CA1103478A (fr)
DE (1) DE2911349C2 (fr)
FR (1) FR2422153A1 (fr)
GB (1) GB2017919B (fr)
IT (1) IT1115094B (fr)
NL (1) NL181954C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498755A1 (fr) * 1981-01-27 1982-07-30 Ams Sa Appareil de protection pour capteurs de pressions differentielles contre le depassement d'une pression differentielle maximale donnee

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218925A (en) * 1979-06-27 1980-08-26 Honeywell Inc. Differential pressure transmitter with pressure sensor protection
DE8407659U1 (de) * 1984-03-09 1985-03-14 Siemens AG, 1000 Berlin und 8000 München Druck- oder druckdifferenzmessgeraet
GB2166243A (en) * 1984-07-07 1986-04-30 Rolf Ruesse An overpressure protector for pressure gauges
DE3443419A1 (de) * 1984-11-26 1986-05-28 Siemens AG, 1000 Berlin und 8000 München Druckdifferenz-messgeraet mit einem halbleiter-drucksensor
US5621175A (en) * 1992-10-22 1997-04-15 Hitachi, Ltd. Differential pressure transmitter having symmetrical construction
ATE431548T1 (de) 2000-07-26 2009-05-15 Endress & Hauser Gmbh & Co Kg Kapazitiver drucksensor
DE20019067U1 (de) * 2000-11-09 2001-01-18 Abb Patent Gmbh Druckmesseinrichtung
DE10105230A1 (de) * 2001-02-02 2002-08-29 Endress & Hauser Gmbh & Co Kg Differenzdrucksensor mit Überlastsicherung
JP3800623B2 (ja) 2002-08-30 2006-07-26 横河電機株式会社 差圧／圧力伝送器
US7520919B2 (en) * 2004-06-22 2009-04-21 Gambro Lundia Ab Transducer-protector device for medical apparatus
DE102004051219B4 (de) * 2004-10-20 2013-03-14 Endress + Hauser Gmbh + Co. Kg Druckmessaufnehmer
CN103512703A (zh) * 2013-09-18 2014-01-15 西安思坦仪器股份有限公司 压差密度计压力保护装置
CN106872097A (zh) * 2017-04-28 2017-06-20 广东省中山市质量计量监督检测所 一种带保护装置的微差压变送器
CN113155353A (zh) * 2021-04-02 2021-07-23 普力斯特测控技术(天长)有限公司 一种便携型直装式法兰压力传感器的过度保护连接装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290945A (en) * 1961-08-21 1966-12-13 Li Yao Tzu Differential pressure responsive device
US3313158A (en) * 1965-07-23 1967-04-11 Statham Instrument Inc High overload pressure transducer
US3841158A (en) * 1972-01-03 1974-10-15 Bailey Meter Co Differential pressure transmitter overrange protection
US4028945A (en) * 1974-11-21 1977-06-14 Nuovo Pignone, S.P.A. Protection system for the overpressures of a silicium wafer sensor used in a differential pressure transmitter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058350A (en) * 1959-10-06 1962-10-16 Statham Instrument Inc Differential pressure transducer
DE1498205B2 (de) * 1965-09-16 1970-06-11 Siemens AG, 1000 Berlin u. 8000 München Mit einer Schutz- oder Dämpfungsflüs-' sigkeit gefüllter überlastsicherer Differenzdruck-Meßumformer
DE1773425A1 (de) * 1968-05-14 1971-11-25 Teltov Geraete Regler Kraftkompensierender Differenzdruckmessumformer
US3756085A (en) * 1972-01-03 1973-09-04 Bailey Meter Co Differential pressure transmitter overrange protection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290945A (en) * 1961-08-21 1966-12-13 Li Yao Tzu Differential pressure responsive device
US3313158A (en) * 1965-07-23 1967-04-11 Statham Instrument Inc High overload pressure transducer
US3841158A (en) * 1972-01-03 1974-10-15 Bailey Meter Co Differential pressure transmitter overrange protection
US4028945A (en) * 1974-11-21 1977-06-14 Nuovo Pignone, S.P.A. Protection system for the overpressures of a silicium wafer sensor used in a differential pressure transmitter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498755A1 (fr) * 1981-01-27 1982-07-30 Ams Sa Appareil de protection pour capteurs de pressions differentielles contre le depassement d'une pression differentielle maximale donnee
EP0056913A1 (fr) * 1981-01-27 1982-08-04 Appareillages et Matériels de Servitudes (A.M.S.) Appareil de protection pour capteurs de pressions différentielles contre le dépassement d'une pression différentielle maximale donnée
US4461180A (en) * 1981-01-27 1984-07-24 Appareillages Et Materiels De Servitudes (A.M.S.) Apparatus for protecting differential pressure measurement apparatus against exceeding a maximum allowable differential pressure

Also Published As

Publication number Publication date
FR2422153B1 (fr) 1983-12-16
US4135407A (en) 1979-01-23
GB2017919A (en) 1979-10-10
JPH0125761Y2 (fr) 1989-08-02
DE2911349A1 (de) 1979-10-11
JPS54138965A (en) 1979-10-27
DE2911349C2 (de) 1986-01-30
NL181954B (nl) 1987-07-01
IT1115094B (it) 1986-02-03
CA1103478A (fr) 1981-06-23
GB2017919B (en) 1983-01-19
JPH0158804U (fr) 1989-04-13
IT7948554A0 (it) 1979-03-30
NL7902486A (nl) 1979-10-05
NL181954C (nl) 1987-12-01

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Legal Events

Date Code Title Description
ST Notification of lapse