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WO2009003961A3 - Measuring system for a medium flowing in a process line - Google Patents

Measuring system for a medium flowing in a process line Download PDF

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Publication number
WO2009003961A3
WO2009003961A3 PCT/EP2008/058319 EP2008058319W WO2009003961A3 WO 2009003961 A3 WO2009003961 A3 WO 2009003961A3 EP 2008058319 W EP2008058319 W EP 2008058319W WO 2009003961 A3 WO2009003961 A3 WO 2009003961A3
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
temperature
medium
local
measuring
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.)
Ceased
Application number
PCT/EP2008/058319
Other languages
German (de)
French (fr)
Other versions
WO2009003961A2 (en
Inventor
Rainer Hoecker
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.)
Endress and Hauser Flowtec AG
Original Assignee
Endress and Hauser Flowtec AG
Flowtec AG
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 Endress and Hauser Flowtec AG, Flowtec AG filed Critical Endress and Hauser Flowtec AG
Priority to CN2008800218818A priority Critical patent/CN101796386B/en
Priority to CA2692179A priority patent/CA2692179C/en
Priority to EP08785888A priority patent/EP2162723A2/en
Publication of WO2009003961A2 publication Critical patent/WO2009003961A2/en
Publication of WO2009003961A3 publication Critical patent/WO2009003961A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
    • G01N9/266—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences for determining gas density

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Volume Flow (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

The invention relates to a measuring system for measuring a density of a medium flowing in a process line, said medium being variable regarding its thermodynamic state, especially at least being compressible, along an imaginary axis of flow of the measuring system. The measuring system comprises at least one temperature sensor that is located in a temperature measuring point and that primarily reacts to a local temperature, 9, of a medium flowing past, said temperature sensor supplying at least one temperature measurement signal that is influenced by the local temperature of the medium to be measured, at least one pressure sensor that is located in a pressure measuring point and that primarily reacts to a local, especially static, pressure, p, of a medium flowing past, said pressure sensor supplying at least one pressure measurement signal that is influenced by the local pressure, p, in the medium to be measured, and at least one electronic measuring unit that at least temporarily communicates with at least the temperature sensor and the pressure sensor. The electronic measuring unit generates at least temporarily an especially digital, density value, using the temperature measurement signal and at least the pressure measurement signal, said density value momentarily representing a local density, ρ, which the flowing medium has in an especially stationary, virtual density measuring point that is interspaced from the pressure measuring point and/or the temperature measuring point along the axis of flow at a defined distance.
PCT/EP2008/058319 2007-06-30 2008-06-27 Measuring system for a medium flowing in a process line Ceased WO2009003961A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008800218818A CN101796386B (en) 2007-06-30 2008-06-27 Measuring system for a medium flowing in a process line
CA2692179A CA2692179C (en) 2007-06-30 2008-06-27 Measuring system for a medium flowing in a process line
EP08785888A EP2162723A2 (en) 2007-06-30 2008-06-27 Measuring system for a medium flowing in a process line

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007030691A DE102007030691A1 (en) 2007-06-30 2007-06-30 Measuring system for a medium flowing in a process line
DE102007030691.3 2007-06-30

Publications (2)

Publication Number Publication Date
WO2009003961A2 WO2009003961A2 (en) 2009-01-08
WO2009003961A3 true WO2009003961A3 (en) 2009-03-05

Family

ID=40076068

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/058319 Ceased WO2009003961A2 (en) 2007-06-30 2008-06-27 Measuring system for a medium flowing in a process line

Country Status (6)

Country Link
EP (1) EP2162723A2 (en)
CN (1) CN101796386B (en)
CA (1) CA2692179C (en)
DE (1) DE102007030691A1 (en)
RU (1) RU2423683C1 (en)
WO (1) WO2009003961A2 (en)

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RU2507513C1 (en) * 2012-10-10 2014-02-20 Шлюмберже Текнолоджи Б.В. Method to determine quantitative composition of multi-component medium
US9360406B2 (en) 2013-04-17 2016-06-07 Thermo Fisher Scientific Inc. Method and apparatus for self-calibration of density profiler
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DE102015103484A1 (en) * 2015-03-10 2016-09-15 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG In-line measuring device
DE102015109450A1 (en) * 2015-06-12 2016-12-15 Abb Schweiz Ag Device for measuring the pressure of a fluid flowing through a pipeline
WO2017116499A1 (en) * 2015-12-28 2017-07-06 The Trustees Of Princeton University Elastic filament velocity sensor
CN107101678B (en) * 2017-05-11 2023-06-27 中国地质大学（武汉） A two-phase flow flow sensor based on conductivity probe and its application method
CN107356418B (en) * 2017-07-12 2019-04-23 中国工程物理研究院总体工程研究所 A kind of rapid detection method for piston cooling nozzle performance test
DE102017126128A1 (en) 2017-11-08 2019-05-09 Endress+Hauser SE+Co. KG System and method for the spatially resolved determination of at least one physical or chemical process variable
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CN111121895A (en) * 2020-01-10 2020-05-08 青岛海威茨仪表有限公司 Large diameter ultrasonic flowmeter
CN115586180A (en) * 2022-09-02 2023-01-10 中国电建集团西北勘测设计研究院有限公司 Concentration detection device based on photovoltaic hydrogen production and storage

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Publication number Priority date Publication date Assignee Title
EP0666468A2 (en) * 1994-02-04 1995-08-09 The Foxboro Company Multimeasurement replaceable vortex sensor
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Title
See also references of EP2162723A2 *

Also Published As

Publication number Publication date
DE102007030691A1 (en) 2009-01-02
WO2009003961A2 (en) 2009-01-08
CA2692179C (en) 2015-10-06
RU2423683C1 (en) 2011-07-10
EP2162723A2 (en) 2010-03-17
CN101796386B (en) 2012-05-16
CN101796386A (en) 2010-08-04
CA2692179A1 (en) 2009-01-08

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