WO2012028428A3 - Pressure measurement transducer - Google Patents

Pressure measurement transducer Download PDF

Info

Publication number
WO2012028428A3
WO2012028428A3 PCT/EP2011/063660 EP2011063660W WO2012028428A3 WO 2012028428 A3 WO2012028428 A3 WO 2012028428A3 EP 2011063660 W EP2011063660 W EP 2011063660W WO 2012028428 A3 WO2012028428 A3 WO 2012028428A3
Authority
WO
WIPO (PCT)
Prior art keywords
pressure measurement
separating diaphragm
diaphragm
measurement transducer
diagnosis
Prior art date
Application number
PCT/EP2011/063660
Other languages
German (de)
French (fr)
Other versions
WO2012028428A2 (en
Inventor
Holger Fehrmann
Christoph Paulitsch
Frank Wohlfarth
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2012028428A2 publication Critical patent/WO2012028428A2/en
Publication of WO2012028428A3 publication Critical patent/WO2012028428A3/en

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
    • G01L19/0007—Fluidic connecting means
    • G01L19/0046—Fluidic connecting means using isolation membranes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
    • G01L27/007—Malfunction diagnosis, i.e. diagnosing a sensor defect

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The invention relates to a pressure measurement transducer having a measurement chamber (1), which is separated from a process medium (3) to be measured by a separating diaphragm (2). Means (5), with which a force acting on the separating diaphragm is generatable for deflecting the separating diaphragm, are provided in or on the measurement chamber (1). Using an evaluation device (7), a characteristic variable is calculated on the basis of the resulting force profile and compared with a corresponding characteristic variable of a predetermined reference profile. In dependence on deviations between the two characteristic variables, a signal is output to indicate a diaphragm error. The pressure measurement transducer thus advantageously allows a diagnosis of the separating diaphragm (2), without the latter having to be removed from a process-engineering system. The diagnosis is additionally performable such that it is less dependent on the respectively prevailing boundary conditions in the system.
PCT/EP2011/063660 2010-08-31 2011-08-09 Pressure measurement transducer WO2012028428A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010035965A DE102010035965A1 (en) 2010-08-31 2010-08-31 Pressure Transmitter
DE102010035965.3 2010-08-31

Publications (2)

Publication Number Publication Date
WO2012028428A2 WO2012028428A2 (en) 2012-03-08
WO2012028428A3 true WO2012028428A3 (en) 2013-04-25

Family

ID=44509321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/063660 WO2012028428A2 (en) 2010-08-31 2011-08-09 Pressure measurement transducer

Country Status (2)

Country Link
DE (1) DE102010035965A1 (en)
WO (1) WO2012028428A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9766145B2 (en) * 2015-07-03 2017-09-19 WIKA Alexander Weigand SE & Co. KG Active diaphragm seal assembly for pressure measurement
DE102018133056A1 (en) * 2018-12-20 2020-06-25 Endress+Hauser SE+Co. KG Pressure sensor
DE102018133053A1 (en) * 2018-12-20 2020-06-25 Endress+Hauser SE+Co. KG Pressure sensor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302269A (en) * 1965-02-02 1967-02-07 Texas Instruments Inc Methods of making condition responsive devices
EP0757196A1 (en) * 1995-06-30 1997-02-05 Fujikin Incorporated Diaphragm valve
EP1258716A1 (en) * 2001-05-16 2002-11-20 Esec Trading S.A. Pressure sensor
US20040074282A1 (en) * 2002-10-16 2004-04-22 Morgan Michael D. Pressure sensing in surgical console
US20070095146A1 (en) * 2005-10-27 2007-05-03 Amnon Brosh Internal pressure simulator for pressure sensors
US20080202606A1 (en) * 2007-02-27 2008-08-28 O'hara Dennis E Methods and apparatus to monitor diaphragm condition

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342368A1 (en) 2003-09-12 2005-04-28 Siemens Ag Pressure Transmitter
DE202004021565U1 (en) * 2004-04-21 2009-02-19 Abb Research Ltd. Device for condition monitoring of a pressure measuring device
DE102006043499A1 (en) * 2006-09-12 2008-03-27 Endress + Hauser Gmbh + Co. Kg Method and device for diagnosing fluid losses in pressure transducers filled with pressure-transmitting fluids

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302269A (en) * 1965-02-02 1967-02-07 Texas Instruments Inc Methods of making condition responsive devices
EP0757196A1 (en) * 1995-06-30 1997-02-05 Fujikin Incorporated Diaphragm valve
EP1258716A1 (en) * 2001-05-16 2002-11-20 Esec Trading S.A. Pressure sensor
US20040074282A1 (en) * 2002-10-16 2004-04-22 Morgan Michael D. Pressure sensing in surgical console
US20070095146A1 (en) * 2005-10-27 2007-05-03 Amnon Brosh Internal pressure simulator for pressure sensors
US20080202606A1 (en) * 2007-02-27 2008-08-28 O'hara Dennis E Methods and apparatus to monitor diaphragm condition

Also Published As

Publication number Publication date
WO2012028428A2 (en) 2012-03-08
DE102010035965A1 (en) 2012-03-01

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