HK1008088A1 - Measurement system - Google Patents

Measurement system

Info

Publication number
HK1008088A1
HK1008088A1 HK98107275A HK98107275A HK1008088A1 HK 1008088 A1 HK1008088 A1 HK 1008088A1 HK 98107275 A HK98107275 A HK 98107275A HK 98107275 A HK98107275 A HK 98107275A HK 1008088 A1 HK1008088 A1 HK 1008088A1
Authority
HK
Hong Kong
Prior art keywords
transducers
fluid
speed
passing
measuring tube
Prior art date
Application number
HK98107275A
Other languages
English (en)
Inventor
Michael John Gill
Original Assignee
British Gas Plc
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 British Gas Plc filed Critical British Gas Plc
Publication of HK1008088A1 publication Critical patent/HK1008088A1/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
    • G01F1/668—Compensating or correcting for variations in velocity of sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
HK98107275A 1991-09-16 1998-06-27 Measurement system HK1008088A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919119742A GB9119742D0 (en) 1991-09-16 1991-09-16 Measurement system

Publications (1)

Publication Number Publication Date
HK1008088A1 true HK1008088A1 (en) 1999-04-30

Family

ID=10701468

Family Applications (2)

Application Number Title Priority Date Filing Date
HK98106156A HK1007441A1 (en) 1991-09-16 1998-06-23 Measurement system
HK98107275A HK1008088A1 (en) 1991-09-16 1998-06-27 Measurement system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK98106156A HK1007441A1 (en) 1991-09-16 1998-06-23 Measurement system

Country Status (12)

Country Link
US (1) US5461931A (xx)
EP (2) EP0566708B1 (xx)
AT (1) ATE152235T1 (xx)
AU (1) AU659679B2 (xx)
CA (1) CA2100749C (xx)
DE (1) DE69219316T2 (xx)
ES (1) ES2101117T3 (xx)
GB (2) GB9119742D0 (xx)
GE (1) GEP20001926B (xx)
HK (2) HK1007441A1 (xx)
SG (1) SG43021A1 (xx)
WO (1) WO1993006440A1 (xx)

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DE69417543T2 (de) * 1993-01-30 1999-07-15 Kromschroeder Ag G Flüssigkeitsströmungsmesser
GB2276240B (en) * 1993-03-16 1997-01-15 British Gas Plc Fluid flowmeter
WO1995004258A1 (en) * 1993-08-02 1995-02-09 G.Kromschröder Aktiengesellschaft Improvements relating to fluid flow monitoring
GB2282447B (en) * 1993-09-29 1997-02-12 Siemens Measurements Ltd Improvements in or relating to gas meters
FR2721397B1 (fr) * 1994-06-17 1996-08-02 Schlumberger Ind Sa Dispositif de mesure ultrasonore d'une quantité volumique d'un fluide.
EP0800062A3 (de) * 1996-04-04 1998-04-15 Georg Fischer Rohrleitungssysteme AG Vorrichtung zur Messung der Strömungsgeschwindigkeit eines Fluides
DE19617961C2 (de) * 1996-05-06 2001-05-23 Igl Ingenieur Gemeinschaft Luf Verfahren zur Messung der Strömungsgeschwindigkeit von gasförmigen oder flüssigen Medien mittels Ultraschall sowie zur Durchführung des Verfahrens geeignetes Meßgerät
US5777238A (en) * 1996-06-12 1998-07-07 Welch Allyn, Inc. Driver-receiver apparatus for use with ultrasonic flowmeters
DE69913937T2 (de) * 1998-01-16 2004-12-23 Lattice Intellectual Property Ltd. Methode und gerät zur messung der relativen dichte eines gases
SE515156C2 (sv) 1998-03-25 2001-06-18 Thermo Measurement Ltd Sätt och anordning för bestämning av flödeshastigheten hos ett i en kanal strömmande medium
GB2341688A (en) * 1998-09-19 2000-03-22 Siemens Measurements Ltd Adaptable gas meter
US6268683B1 (en) 1999-02-26 2001-07-31 M&Fc Holding Company Transducer configurations and related method
DE10145566A1 (de) * 2001-09-14 2003-04-03 Sick Engineering Gmbh Vorrichtung zum Messen der Strömungsgeschwindigkeit und/oder des Durchflusses eines Fluids
US6823716B2 (en) * 2002-11-18 2004-11-30 Southwest Research Institute Device for precision measurement of speed of sound in a gas
US7124621B2 (en) * 2004-07-21 2006-10-24 Horiba Instruments, Inc. Acoustic flowmeter calibration method
DE102005007241B4 (de) * 2005-02-17 2007-05-31 Hydrometer Gmbh Durchflussmesser
US7152490B1 (en) 2005-08-15 2006-12-26 Daniel Measurement And Control, Inc. Methods for determining transducer delay time and transducer separation in ultrasonic flow meters
EP2052220A1 (en) * 2006-07-21 2009-04-29 Sentec Limited Gas flow detector
GB0703250D0 (en) * 2007-02-20 2007-03-28 Ge Healthcare Bio Sciences Ab Ultrasonic flow meter
US7934432B2 (en) * 2007-02-27 2011-05-03 Dräger Medical GmbH Method for measuring the run time of an ultrasonic pulse in the determination of the flow velocity of a gas in a breathing gas volume flow sensor
DE102008054257B4 (de) 2007-11-10 2016-06-30 Drägerwerk AG & Co. KGaA Verfahren zur Bestimmung der Strömungsgeschwindigkeit eines Atemgases
CA2771310C (en) 2009-08-18 2017-12-19 Rubicon Research Pty Ltd Flow meter assembly, gate assemblies and methods of flow measurement
US8302455B2 (en) * 2011-02-11 2012-11-06 Daniel Measurement And Control, Inc. Determining delay times for ultrasonic flow meters
DE102012101098A1 (de) * 2012-02-10 2013-08-14 Endress + Hauser Flowtec Ag Ultraschall-Durchflussmessgerät und Verfahren zur Ermittlung der Fließgeschwindigkeit bzw. des Volumendurchflusses eines Fluids
GB201421607D0 (en) 2014-12-04 2015-01-21 Gill Corporate Ltd Apparatus and a method for providing a time measurement
JP6454600B2 (ja) * 2015-05-14 2019-01-16 株式会社キーエンス 超音波流量スイッチ
US9996089B2 (en) 2015-09-21 2018-06-12 Blue-White Industries, Ltd. Flow sensor devices and systems
JP6546073B2 (ja) * 2015-11-16 2019-07-17 愛知時計電機株式会社 超音波流量計
GB2549717B (en) * 2016-04-25 2018-09-05 Sentronics Ltd Flow meter
US11150118B2 (en) 2016-09-23 2021-10-19 Blue-White Industries, Ltd. Flow sensor devices and systems
CN107505016B (zh) * 2017-09-13 2022-02-08 湖北锐意自控系统有限公司 气体流量计量气室及气体流量计量表
US11125770B2 (en) * 2018-12-06 2021-09-21 Rosemount Aerospace Inc. Acoustic air data sensor and system
US11639863B2 (en) 2019-06-07 2023-05-02 Blue-White Industries, Ltd. Flow sensor devices and systems
IT201900009168A1 (it) * 2019-06-17 2020-12-17 Pietro Fiorentini Spa Dispositivo per la misurazione del gas.
US11906338B2 (en) 2020-06-05 2024-02-20 Honeywell International Inc. Flow measurement by combining 3L echo with delta time-of-flight cross correlation
US11885655B2 (en) 2020-08-07 2024-01-30 Woodward, Inc. Ultrasonic flow meter having flow conditioning arrangements for flow controlling in a linear fluid conduit
US11668818B2 (en) 2020-08-07 2023-06-06 Woodward, Inc. Ultrasonic position sensor
US11835374B2 (en) 2021-03-17 2023-12-05 Woodward, Inc. Ultrasonic mass fuel flow meter

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Publication number Priority date Publication date Assignee Title
GB1072519A (en) * 1964-11-24 1967-06-21 Decca Ltd Improvements in or relating to speed measuring devices
FR2077968A1 (xx) * 1970-02-27 1971-11-05 Thomson Csf
FR2121452B1 (xx) * 1971-01-14 1974-02-15 Thomson Csf
US3731532A (en) * 1972-01-14 1973-05-08 Thomson Csf Ultrasonic flowmeter and method of metering
FR2281571A1 (fr) * 1974-08-06 1976-03-05 Onera (Off Nat Aerospatiale) Perfectionnements aux appareils pour mesurer la vitesse ou le debit d'un courant de liquide par determination de l'anisotropie de propagation d'ondes ultrasonores dans le courant
FR2454101A1 (fr) * 1979-04-11 1980-11-07 Onera (Off Nat Aerospatiale) Appareil de mesure de la vitesse d'une veine liquide par ultra-sons
DE3009574A1 (de) * 1980-03-13 1981-09-17 Krautkrämer, GmbH, 5000 Köln Verfahren und vorrichtung zur bestimmung der schallgeschwindigkeit in einem material vorgegebener dicke
DE3039710C2 (de) * 1980-09-25 1983-01-13 LGZ Landis & Gyr Zug AG, 6301 Zug Meßwertgeber zur Bestimmung der Durchflußmenge einer strömenden Flüssigkeit
GB2131173B (en) * 1982-11-30 1986-06-18 Bestobell Sparling Fluid flow monitoring
JPS6040916A (ja) * 1983-08-17 1985-03-04 Shigeru Tanizawa 超音波流速・流量計の温度変化誤差の補正法
US4616510A (en) * 1985-04-15 1986-10-14 Moore Products Company Fluid velocity measuring method and apparatus
EP0406915A1 (en) * 1985-12-13 1991-01-09 Matsushita Electric Industrial Co., Ltd. Ultrasonic diagnostic apparatus based on variations of acoustic characteristic
US4663977A (en) * 1986-01-03 1987-05-12 Badger Meter, Inc. Sonic measurement of gas flow
US4938066A (en) * 1988-01-29 1990-07-03 Xecutek Corporation Ultrasonic apparatus for measuring the speed of sound in a gaseous medium
US5168762A (en) * 1988-06-09 1992-12-08 British Gas Plc Speed measurement device
GB8813640D0 (en) * 1988-06-09 1988-07-13 Gill M J Speed measurement device
EP0378651B1 (de) * 1988-07-08 1993-10-13 Endress + Hauser Flowtec AG Verfahren und anordnung zur durchflussmessung mittels ultraschallwellen
GB2237639B (en) * 1989-10-31 1994-07-06 British Gas Plc Measurement system
US5035147A (en) * 1990-02-09 1991-07-30 Curtin Matheson Scientific, Inc. Method and system for digital measurement of acoustic burst travel time in a fluid medium
DE4011526A1 (de) * 1990-04-10 1991-10-17 Bosch Gmbh Robert Vorrichtung zur ultraschall-durchflussmessung von stroemenden medien

Also Published As

Publication number Publication date
EP0724139A3 (en) 1997-10-15
GB9119742D0 (en) 1991-10-30
GB2259571B (en) 1996-01-17
EP0566708A1 (en) 1993-10-27
ATE152235T1 (de) 1997-05-15
GB2259571A (en) 1993-03-17
US5461931A (en) 1995-10-31
GB9219853D0 (en) 1992-10-28
AU2588692A (en) 1993-04-27
EP0724139A2 (en) 1996-07-31
HK1007441A1 (en) 1999-04-09
GEP20001926B (en) 2000-01-05
AU659679B2 (en) 1995-05-25
EP0566708B1 (en) 1997-04-23
CA2100749C (en) 2002-06-18
DE69219316T2 (de) 1997-10-09
WO1993006440A1 (en) 1993-04-01
DE69219316D1 (de) 1997-05-28
ES2101117T3 (es) 1997-07-01
SG43021A1 (en) 2003-04-23
CA2100749A1 (en) 1993-03-17

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20040916