DE3504329A1 - Differenzdruckmessgeraet - Google Patents

Differenzdruckmessgeraet

Info

Publication number
DE3504329A1
DE3504329A1 DE19853504329 DE3504329A DE3504329A1 DE 3504329 A1 DE3504329 A1 DE 3504329A1 DE 19853504329 DE19853504329 DE 19853504329 DE 3504329 A DE3504329 A DE 3504329A DE 3504329 A1 DE3504329 A1 DE 3504329A1
Authority
DE
Germany
Prior art keywords
values
temperature
differential pressure
pressure
measured
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
DE19853504329
Other languages
German (de)
English (en)
Other versions
DE3504329C2 (enrdf_load_stackoverflow
Inventor
Bernd Ing.(Grad.) Heck
Dierk Dipl.-Phys. Dr. 2000 Hamburg Schröder
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.)
Envec Mess und Regeltechnik GmbH and Co
Original Assignee
Philips Patentverwaltung GmbH
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 Philips Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH
Priority to DE19853504329 priority Critical patent/DE3504329A1/de
Publication of DE3504329A1 publication Critical patent/DE3504329A1/de
Application granted granted Critical
Publication of DE3504329C2 publication Critical patent/DE3504329C2/de
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
    • 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
    • G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
    • 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
    • G01L9/12—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 by making use of variations in capacitance, i.e. electric circuits therefor
    • G01L9/125—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 by making use of variations in capacitance, i.e. electric circuits therefor with temperature compensating means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
DE19853504329 1985-02-08 1985-02-08 Differenzdruckmessgeraet Granted DE3504329A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853504329 DE3504329A1 (de) 1985-02-08 1985-02-08 Differenzdruckmessgeraet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853504329 DE3504329A1 (de) 1985-02-08 1985-02-08 Differenzdruckmessgeraet

Publications (2)

Publication Number Publication Date
DE3504329A1 true DE3504329A1 (de) 1986-08-14
DE3504329C2 DE3504329C2 (enrdf_load_stackoverflow) 1987-11-19

Family

ID=6262018

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853504329 Granted DE3504329A1 (de) 1985-02-08 1985-02-08 Differenzdruckmessgeraet

Country Status (1)

Country Link
DE (1) DE3504329A1 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097712A (en) * 1989-09-28 1992-03-24 Endress U. Hauser Gmbh U. Co. Differential pressure measuring apparatus
US5111698A (en) * 1989-10-06 1992-05-12 Endress U. Hauser Gmbh U. Co. Differential pressure measuring apparatus
EP0508517A3 (en) * 1991-03-29 1993-03-03 Philips Patentverwaltung Gmbh Differential pressure transducer
EP0764839A1 (de) * 1995-09-22 1997-03-26 Endress + Hauser GmbH + Co. Druck- oder Differenzdruckmessgerät
EP0826953A3 (de) * 1996-08-21 1998-07-22 Endress + Hauser GmbH + Co. Auswerteeinheit eines kapazitiven Drucksensor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2639159B2 (ja) * 1989-04-14 1997-08-06 富士電機株式会社 静電容量式差圧検出器
DE19531926C2 (de) * 1995-08-16 1998-05-28 Hartmann & Braun Ag Verfahren zur Korrektur eines Differenzdrucksignals
DE10117142A1 (de) * 2001-04-05 2002-10-10 Endress & Hauser Gmbh & Co Kg Kapazitiver Differenz-Drucksensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321580A1 (de) * 1983-06-15 1984-12-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Einrichtung zur erfassung der temperatur fuer die kompensation temperaturabhaengiger fehler in einem kapazitiven differenzdrucksensor
DE3340834A1 (de) * 1983-11-11 1985-05-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur konstanthaltung der temperaturabhaengigen empfindlichkeit eines differenzdruckmessgeraetes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321580A1 (de) * 1983-06-15 1984-12-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Einrichtung zur erfassung der temperatur fuer die kompensation temperaturabhaengiger fehler in einem kapazitiven differenzdrucksensor
DE3340834A1 (de) * 1983-11-11 1985-05-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur konstanthaltung der temperaturabhaengigen empfindlichkeit eines differenzdruckmessgeraetes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097712A (en) * 1989-09-28 1992-03-24 Endress U. Hauser Gmbh U. Co. Differential pressure measuring apparatus
US5111698A (en) * 1989-10-06 1992-05-12 Endress U. Hauser Gmbh U. Co. Differential pressure measuring apparatus
EP0508517A3 (en) * 1991-03-29 1993-03-03 Philips Patentverwaltung Gmbh Differential pressure transducer
JP3329480B2 (ja) 1991-03-29 2002-09-30 アンヴェク メス−ウント リーガルテクニク ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー 差圧測定装置
EP0764839A1 (de) * 1995-09-22 1997-03-26 Endress + Hauser GmbH + Co. Druck- oder Differenzdruckmessgerät
EP0826953A3 (de) * 1996-08-21 1998-07-22 Endress + Hauser GmbH + Co. Auswerteeinheit eines kapazitiven Drucksensor

Also Published As

Publication number Publication date
DE3504329C2 (enrdf_load_stackoverflow) 1987-11-19

Similar Documents

Publication Publication Date Title
DE3340834C2 (enrdf_load_stackoverflow)
JP3106805B2 (ja) 圧力差測定方法及び変位変換装置
DE3933512C2 (enrdf_load_stackoverflow)
EP0420105B1 (de) Differenzdruckmessgerät mit Selbstüberwachung
EP0826953B1 (de) Auswerteeinheit eines kapazitiven Drucksensors
DE102005028507B3 (de) Verfahren zur Kapazitäts-Spannungs-Wandlung und Kapazitäts-Spannungs-Wandler
WO2015039810A1 (de) Druckmessumformer
DE3504329C2 (enrdf_load_stackoverflow)
DE69219762T2 (de) Kompensator des statischen drucks für druckwandler
DE3832568A1 (de) Schaltungsanordnung zur temperaturkompensation von kapazitiven druck- und differenzdrucksensoren
EP0764839A1 (de) Druck- oder Differenzdruckmessgerät
DE2754388A1 (de) Fluessigkeitsmessystem
DE3642771A1 (de) Verfahren und vorrichtung zur messung der messgroesse eines messobjekts
DE2919230A1 (de) Messverfahren und messchaltung zur kontinuierlichen feuchtemessung
DE3785203T2 (de) Messschaltung.
DE3321580C2 (enrdf_load_stackoverflow)
DE3512529A1 (de) Differenzdruckmessumformer mit massnahmen zur kompensation der einfluesse von stoerenden veraenderlichen groessen
EP0508517B1 (de) Kompensiertes Differenzdruckmessgerät
US4793187A (en) Circuit arrangement for the compensation of temperature-dependent and temperature-independent drift and for the compensation of the sensitivity of a capacitive sensor
DE3414896C2 (enrdf_load_stackoverflow)
EP0017901B1 (de) Schaltung zum elektrischen Messen mechanischer Grössen
EP0316644A1 (de) Messeinrichtung mit Sensorelementen
KR100302459B1 (ko) 미세 거리/위치 측정용 정전 용량형 센서 콘트롤러의 비선형성 보정장치
DE2804696A1 (de) Elektronische kapazitaetsmesseinrichtung
DE3009444A1 (de) Verfahren und messschaltung zum messen physikalischer groessen

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ENVEC MESS- UND REGELTECHNIK GMBH + CO, 34123 KASS

8327 Change in the person/name/address of the patent owner

Owner name: ENVEC MESS- UND REGELTECHNIK GMBH + CO., 79576 WEI

8339 Ceased/non-payment of the annual fee