CA2101440A1 - Line pressure compensator for a pressure transducer - Google Patents

Line pressure compensator for a pressure transducer

Info

Publication number
CA2101440A1
CA2101440A1 CA002101440A CA2101440A CA2101440A1 CA 2101440 A1 CA2101440 A1 CA 2101440A1 CA 002101440 A CA002101440 A CA 002101440A CA 2101440 A CA2101440 A CA 2101440A CA 2101440 A1 CA2101440 A1 CA 2101440A1
Authority
CA
Canada
Prior art keywords
capacitive
pressure
differential pressure
static pressure
variation
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.)
Abandoned
Application number
CA002101440A
Other languages
English (en)
French (fr)
Inventor
Roger L. Frick
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.)
Rosemount Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2101440A1 publication Critical patent/CA2101440A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
CA002101440A 1991-03-08 1992-03-02 Line pressure compensator for a pressure transducer Abandoned CA2101440A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/667,320 US5163326A (en) 1991-03-08 1991-03-08 Line pressure compensator for a pressure transducer
US667,320 1991-03-08

Publications (1)

Publication Number Publication Date
CA2101440A1 true CA2101440A1 (en) 1992-09-09

Family

ID=24677749

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002101440A Abandoned CA2101440A1 (en) 1991-03-08 1992-03-02 Line pressure compensator for a pressure transducer

Country Status (6)

Country Link
US (1) US5163326A (enExample)
EP (1) EP0574539B1 (enExample)
JP (1) JP3190337B2 (enExample)
CA (1) CA2101440A1 (enExample)
DE (1) DE69219762T2 (enExample)
WO (1) WO1992015850A1 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237285A (en) * 1991-10-18 1993-08-17 Rosemount Inc. Method and apparatus for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter
JP3106805B2 (ja) 1993-10-14 2000-11-06 富士電機株式会社 圧力差測定方法及び変位変換装置
US5438880A (en) * 1994-05-17 1995-08-08 United Technologies Corporation Electrostatic linear airspeed transducer
US5616846A (en) * 1994-10-27 1997-04-01 Kwasnik; Joseph W. Method and apparatus for current regulation and temperature compensation
US6879056B2 (en) * 2000-12-29 2005-04-12 Intel Corporation Converting sensed signals
DE10229703A1 (de) * 2002-07-02 2004-01-15 Endress + Hauser Gmbh + Co. Kg Kapazitiver Drucksensor
JP4525222B2 (ja) * 2004-07-21 2010-08-18 富士電機システムズ株式会社 静電容量式圧力測定装置
CN100427911C (zh) * 2006-11-03 2008-10-22 沈阳仪表科学研究院 电容差压传感器静压影响补偿方法
NL2003266A1 (nl) 2008-08-11 2010-02-15 Asml Holding Nv Multi nozzle proximity sensor employing common sensing and nozzle shaping.
US8234927B2 (en) * 2010-06-08 2012-08-07 Rosemount Inc. Differential pressure sensor with line pressure measurement
US9038476B2 (en) * 2012-09-27 2015-05-26 Rosemount Inc. Pressure transmitter with fill tube
US10309997B2 (en) * 2013-03-15 2019-06-04 Infineon Technologies Ag Apparatus and a method for generating a sensor signal indicating information on a capacitance of a variable capacitor comprising a variable capacitance
US11046575B2 (en) * 2017-10-31 2021-06-29 Encite Llc Broad range micro pressure sensor
EP3861312A1 (en) * 2018-10-05 2021-08-11 Avgi Engineering, Inc. Differential pressure transmitter with intrinsic verification

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091683A (en) * 1976-09-27 1978-05-30 Panex, Inc. Single channel electrical comparative measuring system
US4370890A (en) * 1980-10-06 1983-02-01 Rosemount Inc. Capacitive pressure transducer with isolated sensing diaphragm
US4457179A (en) * 1981-03-16 1984-07-03 The Bendix Corporation Differential pressure measuring system
DE3414896A1 (de) * 1984-04-19 1985-10-24 Philips Patentverwaltung Gmbh, 2000 Hamburg Vorrichtung zur verringerung der temperaturabhaengigkeit eines kapazitiven einkammerdifferenzdrucksensors
US4791352A (en) * 1986-07-17 1988-12-13 Rosemount Inc. Transmitter with vernier measurement
JP2544435B2 (ja) * 1988-04-06 1996-10-16 株式会社日立製作所 多機能センサ
US4878012A (en) * 1988-06-10 1989-10-31 Rosemount Inc. Charge balanced feedback transmitter
JPH047460A (ja) * 1990-04-24 1992-01-10 Matsushita Electric Works Ltd 床パネル

Also Published As

Publication number Publication date
US5163326A (en) 1992-11-17
DE69219762T2 (de) 1997-08-28
WO1992015850A1 (en) 1992-09-17
JPH06507487A (ja) 1994-08-25
EP0574539A4 (enExample) 1994-02-23
EP0574539A1 (en) 1993-12-22
JP3190337B2 (ja) 2001-07-23
EP0574539B1 (en) 1997-05-14
DE69219762D1 (de) 1997-06-19

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead