NZ262848A - Fluid flow measurement in duct with acoustic non-fundamental modes controlled between transducers in modified duct cross-section - Google Patents
Fluid flow measurement in duct with acoustic non-fundamental modes controlled between transducers in modified duct cross-sectionInfo
- Publication number
- NZ262848A NZ262848A NZ262848A NZ26284894A NZ262848A NZ 262848 A NZ262848 A NZ 262848A NZ 262848 A NZ262848 A NZ 262848A NZ 26284894 A NZ26284894 A NZ 26284894A NZ 262848 A NZ262848 A NZ 262848A
- Authority
- NZ
- New Zealand
- Prior art keywords
- duct
- obstruction
- transducers
- measurement portion
- section
- Prior art date
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 40
- 239000012530 fluid Substances 0.000 title claims abstract description 34
- 230000000694 effects Effects 0.000 claims abstract description 31
- 230000003247 decreasing effect Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 238000007788 roughening Methods 0.000 claims description 5
- 230000003190 augmentative effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 34
- 230000005540 biological transmission Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 239000003550 marker Substances 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- 238000002604 ultrasonography Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000001944 accentuation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPL772693 | 1993-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NZ262848A true NZ262848A (en) | 1997-02-24 |
Family
ID=3776763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ262848A NZ262848A (en) | 1993-03-09 | 1994-03-07 | Fluid flow measurement in duct with acoustic non-fundamental modes controlled between transducers in modified duct cross-section |
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)
| 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 |
Family Cites Families (14)
| 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 |
| EP0152132A1 (en) * | 1984-01-27 | 1985-08-21 | N.V. Nederlandsche Apparatenfabriek NEDAP | An ultrasonic flow meter |
| NL8403222A (nl) * | 1984-10-23 | 1986-05-16 | Nedap Nv | Methode ter vermindering van ongewenste echo's in ultrasone stroomsnelheidsmeters. |
| CH670156A5 (enExample) * | 1986-06-17 | 1989-05-12 | Landis & Gyr Gmbh | |
| DK0451355T3 (da) * | 1990-04-10 | 1993-08-23 | Landis & Gyr Tech Innovat | Måleværdigiver til bestemmelse af gennemstrømningsmængden af en strømmende væske |
| 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 |
-
1994
- 1994-03-07 JP JP6519385A patent/JPH08507373A/ja active Pending
- 1994-03-07 BR BR9406377A patent/BR9406377A/pt not_active Application Discontinuation
- 1994-03-07 DE DE69431259T patent/DE69431259T2/de not_active Expired - Fee Related
- 1994-03-07 CN CN94191422A patent/CN1058335C/zh not_active Expired - Fee Related
- 1994-03-07 NZ NZ262848A patent/NZ262848A/en unknown
- 1994-03-07 EP EP94910271A patent/EP0740778B1/en not_active Expired - Lifetime
- 1994-03-07 US US08/513,924 patent/US5792965A/en not_active Expired - Fee Related
- 1994-03-07 AT AT94910271T patent/ATE223033T1/de not_active IP Right Cessation
- 1994-03-07 KR KR1019950703776A patent/KR960701354A/ko not_active Ceased
- 1994-03-07 AU AU62770/94A patent/AU674937B2/en not_active Ceased
- 1994-03-07 CA CA002157784A patent/CA2157784A1/en not_active Abandoned
- 1994-03-07 SG SG1996007375A patent/SG49840A1/en unknown
- 1994-03-07 WO PCT/AU1994/000104 patent/WO1994020821A1/en not_active Ceased
- 1994-03-07 PL PL94310546A patent/PL174417B1/pl unknown
- 1994-03-09 TW TW083102048A patent/TW249277B/zh active
-
1995
- 1995-09-08 NO NO953550A patent/NO953550L/no not_active Application Discontinuation
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 |
| AU674937B2 (en) | 1997-01-16 |
| 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 |
| DE69431259T2 (de) | 2003-04-17 |
| NO953550D0 (no) | 1995-09-08 |
| JPH08507373A (ja) | 1996-08-06 |
| ATE223033T1 (de) | 2002-09-15 |
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