WO2006130425A8 - Line pressure measurement using differential pressure sensor - Google Patents

Line pressure measurement using differential pressure sensor

Info

Publication number
WO2006130425A8
WO2006130425A8 PCT/US2006/020254 US2006020254W WO2006130425A8 WO 2006130425 A8 WO2006130425 A8 WO 2006130425A8 US 2006020254 W US2006020254 W US 2006020254W WO 2006130425 A8 WO2006130425 A8 WO 2006130425A8
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
electrode
primary
process fluid
pressure
Prior art date
Application number
PCT/US2006/020254
Other languages
French (fr)
Other versions
WO2006130425A1 (en
Inventor
Donald E Harasyn
Charles R Willcox
Original Assignee
Rosemount Inc
Donald E Harasyn
Charles R Willcox
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36986714&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2006130425(A8) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rosemount Inc, Donald E Harasyn, Charles R Willcox filed Critical Rosemount Inc
Priority to JP2008513709A priority Critical patent/JP5416967B2/en
Priority to EP06771177.0A priority patent/EP1883797B2/en
Priority to CA2609010A priority patent/CA2609010C/en
Priority to CN2006800184691A priority patent/CN101184978B/en
Publication of WO2006130425A1 publication Critical patent/WO2006130425A1/en
Publication of WO2006130425A8 publication Critical patent/WO2006130425A8/en

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
    • G01L9/0041—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
    • 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)

Abstract

A pressure sensor assembly (56) for sensing a pressure of a process fluid includes a sensor body (220) having a cavity (132,134) formed therein to couple to a process fluid pressure. A deflectable diaphragm (100) in the cavity deflects in response to the first and second process fluid pressures . A first primary electrode (144) couples to a wall (126) of the cavity and forms a first primary capacitor (Mx) between the first primary electrode and the deflectable diaphragm. A first secondary electrode (146) couples to the wall of the cavity to form a first secondary capacitor (Rx) between the first secondary electrode and the deflectable diaphragm. A second primary electrode (148) and second secondary electrode (150) are preferably coupled to a wall (128) of the cavity opposite the first. Line pressure of the process fluid is determined based upon variation in the secondary capacitors relative to the primary capacitors .
PCT/US2006/020254 2005-05-27 2006-05-25 Line pressure measurement using differential pressure sensor WO2006130425A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2008513709A JP5416967B2 (en) 2005-05-27 2006-05-25 Pressure sensor assembly, pressure sensor and line pressure measuring method
EP06771177.0A EP1883797B2 (en) 2005-05-27 2006-05-25 Line pressure measurement using differential pressure sensor
CA2609010A CA2609010C (en) 2005-05-27 2006-05-25 Line pressure measurement using differential pressure sensor
CN2006800184691A CN101184978B (en) 2005-05-27 2006-05-25 Line pressure measurement using differential pressure sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/140,681 2005-05-27
US11/140,681 US7334484B2 (en) 2005-05-27 2005-05-27 Line pressure measurement using differential pressure sensor

Publications (2)

Publication Number Publication Date
WO2006130425A1 WO2006130425A1 (en) 2006-12-07
WO2006130425A8 true WO2006130425A8 (en) 2007-04-26

Family

ID=36986714

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/020254 WO2006130425A1 (en) 2005-05-27 2006-05-25 Line pressure measurement using differential pressure sensor

Country Status (7)

Country Link
US (1) US7334484B2 (en)
EP (1) EP1883797B2 (en)
JP (1) JP5416967B2 (en)
CN (1) CN101184978B (en)
CA (1) CA2609010C (en)
RU (1) RU2416786C2 (en)
WO (1) WO2006130425A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9921238B2 (en) 2014-12-26 2018-03-20 Kabushiki Kaisha Toshiba Sensor and its manufacturing method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9921238B2 (en) 2014-12-26 2018-03-20 Kabushiki Kaisha Toshiba Sensor and its manufacturing method

Also Published As

Publication number Publication date
RU2007149342A (en) 2009-07-10
EP1883797B1 (en) 2012-08-08
CN101184978B (en) 2010-06-02
JP2008542726A (en) 2008-11-27
CA2609010C (en) 2015-04-28
EP1883797B2 (en) 2016-06-29
CN101184978A (en) 2008-05-21
US20060278007A1 (en) 2006-12-14
RU2416786C2 (en) 2011-04-20
WO2006130425A1 (en) 2006-12-07
JP5416967B2 (en) 2014-02-12
EP1883797A1 (en) 2008-02-06
CA2609010A1 (en) 2006-12-07
US7334484B2 (en) 2008-02-26

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