DE3504329C2 - - Google Patents

Info

Publication number
DE3504329C2
DE3504329C2 DE19853504329 DE3504329A DE3504329C2 DE 3504329 C2 DE3504329 C2 DE 3504329C2 DE 19853504329 DE19853504329 DE 19853504329 DE 3504329 A DE3504329 A DE 3504329A DE 3504329 C2 DE3504329 C2 DE 3504329C2
Authority
DE
Germany
Prior art keywords
temperature
pressure
differential pressure
computer
values
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
DE19853504329
Other languages
German (de)
English (en)
Other versions
DE3504329A1 (de
Inventor
Bernd Ing.(Grad.) Heck
Dierk Dipl.-Phys. Dr. 2000 Hamburg De Schroeder
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 DE3504329A1 (de) 1986-08-14
DE3504329C2 true DE3504329C2 (en, 2012) 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 (en, 2012)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011734A1 (de) * 1989-04-14 1990-10-18 Fuji Electric Co Ltd Kapazitiver differenzdruckdetektor
DE3932443C1 (en, 2012) * 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
DE19531926A1 (de) * 1995-08-16 1997-02-20 Hartmann & Braun Ag Verfahren zur Korrektur eines Differenzdrucksignals
DE19633630A1 (de) * 1996-08-21 1998-02-26 Endress Hauser Gmbh Co Auswerteeinheit eines Differenzdrucksensors
DE10117142A1 (de) * 2001-04-05 2002-10-10 Endress & Hauser Gmbh & Co Kg Kapazitiver Differenz-Drucksensor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110447A1 (de) * 1991-03-29 1992-10-01 Philips Patentverwaltung Differenzdruckmessgeraet
EP0764839A1 (de) * 1995-09-22 1997-03-26 Endress + Hauser GmbH + Co. Druck- oder Differenzdruckmessgerät

Family Cites Families (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 (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011734A1 (de) * 1989-04-14 1990-10-18 Fuji Electric Co Ltd Kapazitiver differenzdruckdetektor
DE3932443C1 (en, 2012) * 1989-09-28 1990-12-20 Endress U. Hauser Gmbh U. Co, 7864 Maulburg, De
EP0420105B1 (de) * 1989-09-28 1993-11-24 Endress u. Hauser GmbH u. Co. Differenzdruckmessgerät mit Selbstüberwachung
DE3933512A1 (de) * 1989-10-06 1991-04-18 Endress Hauser Gmbh Co Differenzdruckmessgeraet
EP0421394A3 (en) * 1989-10-06 1991-09-18 Endress U. Hauser Gmbh U. Co. Differential pressure measuring device
DE19531926A1 (de) * 1995-08-16 1997-02-20 Hartmann & Braun Ag Verfahren zur Korrektur eines Differenzdrucksignals
DE19531926C2 (de) * 1995-08-16 1998-05-28 Hartmann & Braun Ag Verfahren zur Korrektur eines Differenzdrucksignals
DE19633630A1 (de) * 1996-08-21 1998-02-26 Endress Hauser Gmbh Co Auswerteeinheit eines Differenzdrucksensors
US5969258A (en) * 1996-08-21 1999-10-19 Endress & Hauser Gmbh & Co. Evaluation unit of a differential-pressure sensor
DE10117142A1 (de) * 2001-04-05 2002-10-10 Endress & Hauser Gmbh & Co Kg Kapazitiver Differenz-Drucksensor
US6925884B2 (en) 2001-04-05 2005-08-09 Endress + Hauser Gmbh + Co. Kg Capacitive differential pressure sensor

Also Published As

Publication number Publication date
DE3504329A1 (de) 1986-08-14

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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