AU674937B2 - Mode suppression in fluid meter conduits - Google Patents

Mode suppression in fluid meter conduits Download PDF

Info

Publication number
AU674937B2
AU674937B2 AU62770/94A AU6277094A AU674937B2 AU 674937 B2 AU674937 B2 AU 674937B2 AU 62770/94 A AU62770/94 A AU 62770/94A AU 6277094 A AU6277094 A AU 6277094A AU 674937 B2 AU674937 B2 AU 674937B2
Authority
AU
Australia
Prior art keywords
duct
obstruction
measurement portion
modes
fluid
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
AU62770/94A
Other languages
English (en)
Other versions
AU6277094A (en
Inventor
Noel Bignell
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.)
Commonwealth Scientific and Industrial Research Organization CSIRO
AGL Consultancy Pty Ltd
Original Assignee
Commonwealth Scientific and Industrial Research Organization CSIRO
AGL Consultancy Pty Ltd
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 Commonwealth Scientific and Industrial Research Organization CSIRO, AGL Consultancy Pty Ltd filed Critical Commonwealth Scientific and Industrial Research Organization CSIRO
Publication of AU6277094A publication Critical patent/AU6277094A/en
Application granted granted Critical
Publication of AU674937B2 publication Critical patent/AU674937B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Pipeline Systems (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Pipe Accessories (AREA)
  • Details Of Fluid Heaters (AREA)
AU62770/94A 1993-03-09 1994-03-07 Mode suppression in fluid meter conduits Ceased AU674937B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPL772693 1993-03-09
AUPL7726 1993-03-09
PCT/AU1994/000104 WO1994020821A1 (en) 1993-03-09 1994-03-07 Mode suppression in fluid meter conduits

Publications (2)

Publication Number Publication Date
AU6277094A AU6277094A (en) 1994-09-26
AU674937B2 true AU674937B2 (en) 1997-01-16

Family

ID=3776763

Family Applications (1)

Application Number Title Priority Date Filing Date
AU62770/94A Ceased AU674937B2 (en) 1993-03-09 1994-03-07 Mode suppression in fluid meter conduits

Country Status (16)

Country Link
US (1) US5792965A (enExample)
EP (1) EP0740778B1 (enExample)
JP (1) JPH08507373A (enExample)
KR (1) KR960701354A (enExample)
CN (1) CN1058335C (enExample)
AT (1) ATE223033T1 (enExample)
AU (1) AU674937B2 (enExample)
BR (1) BR9406377A (enExample)
CA (1) CA2157784A1 (enExample)
DE (1) DE69431259T2 (enExample)
NO (1) NO953550L (enExample)
NZ (1) NZ262848A (enExample)
PL (1) PL174417B1 (enExample)
SG (1) SG49840A1 (enExample)
TW (1) TW249277B (enExample)
WO (1) WO1994020821A1 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2724016B1 (fr) * 1994-08-23 1996-10-25 Schlumberger Ind Sa Dispositif de mesure ultrasonore d'une quantite volumique d'un fluide a proprietes acoustiques ameliorees
FR2737564B1 (fr) * 1995-08-04 1997-10-03 Schlumberger Ind Sa Compteur de fluide a ultrasons pour l'attenuation d'ondes ultrasonores parasites
AUPN606095A0 (en) 1995-10-19 1995-11-09 AGL Consultancy Pty. Limited Digital speed determination in ultrasonic flow measurements
GB2313910A (en) * 1996-06-07 1997-12-10 Kromschroeder Ag G Acoustic fluid flowmeter
JP3175632B2 (ja) 1997-04-18 2001-06-11 松下電器産業株式会社 シーンチェンジ検出方法およびシーンチェンジ検出装置
US6338277B1 (en) 1997-06-06 2002-01-15 G. Kromschroder Aktiengesellschaft Flowmeter for attenuating acoustic propagations
AU771899B2 (en) * 1999-12-22 2004-04-08 AGL Consultancy Pty. Limited Timed window ultrasonic gas meter with nose cone
AUPQ480199A0 (en) * 1999-12-22 2000-02-03 AGL Consultancy Pty. Limited Timed window ultrasonic gas meter with nose cone
US7011180B2 (en) * 2002-09-18 2006-03-14 Savant Measurement Corporation System for filtering ultrasonic noise within a fluid flow system
JP3521906B2 (ja) 2002-12-13 2004-04-26 松下電器産業株式会社 超音波流量計
US7117104B2 (en) * 2004-06-28 2006-10-03 Celerity, Inc. Ultrasonic liquid flow controller
TW200739039A (en) * 2005-08-12 2007-10-16 Celerity Inc Ultrasonic flow sensor
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
US7845688B2 (en) 2007-04-04 2010-12-07 Savant Measurement Corporation Multiple material piping component

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152132A1 (en) * 1984-01-27 1985-08-21 N.V. Nederlandsche Apparatenfabriek NEDAP An ultrasonic flow meter
WO1986002723A1 (en) * 1984-10-23 1986-05-09 N.V. Nederlandsche Apparatenfabriek Nedap Transducer with reduced acoustic reflection
EP0451355A1 (de) * 1990-04-10 1991-10-16 Landis & Gyr Technology Innovation AG Messwertgeber zur Bestimmung der Durchflussmenge einer strömenden Flüssigkeit

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003252A (en) * 1974-08-16 1977-01-18 The Institutes Of Medical Sciences Acoustical wave flowmeter
US4164865A (en) * 1977-02-22 1979-08-21 The Perkin-Elmer Corporation Acoustical wave flowmeter
US4445389A (en) * 1981-09-10 1984-05-01 The United States Of America As Represented By The Secretary Of Commerce Long wavelength acoustic flowmeter
CH654105A5 (de) * 1981-12-14 1986-01-31 Landis & Gyr Ag Messwertgeber zur bestimmung der durchflussmenge einer stroemenden fluessigkeit.
CH654410A5 (de) * 1981-12-14 1986-02-14 Landis & Gyr Ag Messwertgeber zur bestimmung der durchflussmenge einer stroemenden fluessigkeit.
DE3321840A1 (de) * 1983-06-16 1984-12-20 Institut für Innovationssysteme und Produktentwicklung C.P. Wieland und Dr. C. Zillich, 8000 München Wasch- und reinigungsmittel mit antimycetischer wirkung
CH670156A5 (enExample) * 1986-06-17 1989-05-12 Landis & Gyr Gmbh
NZ243294A (en) * 1991-06-25 1995-04-27 Commw Scient Ind Res Org Time of flight of acoustic wave packets through fluid: reduction of higher order acoustic mode effects
US5172072A (en) * 1991-09-06 1992-12-15 Itt Corporation High efficiency harmonic injection power amplifier
FR2683046B1 (fr) * 1991-10-25 1994-02-04 Schlumberger Industries Dispositif de mesure de la vitesse d'un fluide.
DK56593A (da) * 1992-08-25 1994-02-26 Kamstrup Metro As Strømningsmåler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152132A1 (en) * 1984-01-27 1985-08-21 N.V. Nederlandsche Apparatenfabriek NEDAP An ultrasonic flow meter
WO1986002723A1 (en) * 1984-10-23 1986-05-09 N.V. Nederlandsche Apparatenfabriek Nedap Transducer with reduced acoustic reflection
EP0451355A1 (de) * 1990-04-10 1991-10-16 Landis & Gyr Technology Innovation AG Messwertgeber zur Bestimmung der Durchflussmenge einer strömenden Flüssigkeit

Also Published As

Publication number Publication date
CA2157784A1 (en) 1994-09-15
WO1994020821A1 (en) 1994-09-15
SG49840A1 (en) 1998-06-15
TW249277B (enExample) 1995-06-11
DE69431259D1 (de) 2002-10-02
EP0740778B1 (en) 2002-08-28
PL310546A1 (en) 1995-12-27
US5792965A (en) 1998-08-11
BR9406377A (pt) 1996-01-16
CN1058335C (zh) 2000-11-08
NO953550L (no) 1995-11-08
PL174417B1 (pl) 1998-07-31
EP0740778A4 (en) 1996-04-03
CN1119041A (zh) 1996-03-20
AU6277094A (en) 1994-09-26
KR960701354A (ko) 1996-02-24
EP0740778A1 (en) 1996-11-06
NZ262848A (en) 1997-02-24
DE69431259T2 (de) 2003-04-17
NO953550D0 (no) 1995-09-08
JPH08507373A (ja) 1996-08-06
ATE223033T1 (de) 2002-09-15

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