NO934571L - Fremgangsmaate og anordning ved akustisk stroemningsmaaling for aa si kre at maalingen virker - Google Patents

Fremgangsmaate og anordning ved akustisk stroemningsmaaling for aa si kre at maalingen virker

Info

Publication number
NO934571L
NO934571L NO934571A NO934571A NO934571L NO 934571 L NO934571 L NO 934571L NO 934571 A NO934571 A NO 934571A NO 934571 A NO934571 A NO 934571A NO 934571 L NO934571 L NO 934571L
Authority
NO
Norway
Prior art keywords
sound
velocity
measurement
measuring tube
procedure
Prior art date
Application number
NO934571A
Other languages
English (en)
Other versions
NO934571D0 (no
Inventor
Tarmo Maeraenen
Sauli Koukkari
Original Assignee
Kytoelae Instrumenttitehdas
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 Kytoelae Instrumenttitehdas filed Critical Kytoelae Instrumenttitehdas
Publication of NO934571L publication Critical patent/NO934571L/no
Publication of NO934571D0 publication Critical patent/NO934571D0/no

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
    • 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
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/712—Measuring the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
    • G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
    • G01P21/025—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers for measuring speed of fluids; for measuring speed of bodies relative to fluids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/18—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
    • G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
    • 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
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7082—Measuring the time taken to traverse a fixed distance using acoustic detecting arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Fremgangsmåte og anordning for akustisk strømnings-måling for å måle strømningshastigheten (v) til gass og/eller størrelsen utledet derav. En langbølgelyd sendes inn i målerøret (10) og ved hjelp av to lyddetektorer (14a, 14b) anbrakt med en viss avstand (L) fra t hverandre i forbindelse med målerøret (10) detekteres lydsignaler som forplanter seg i gasstrømmen nedstrøms og/eller- oppstrøms, idet strømningshastig-heten (v) til gassen som flyter i målerøret (10) bestemmes ved hjelp av korrelasjon av lydsignalene. En lydhastighet cq(T) i et stillestående medium, hvilken lydhastighet har blitt standardisert eller vil bli standardisert for en viss temperatur, lagres i et lager (20M) og strømningshastigheten (v) og de 'andre størrelsene som kan bli utledet derav, dersom noen, beregnes i det minste ved forstyrrelser ved hjelp av den detekterte nedstrømshastigheten Vq- eller den detekterte oppstrømshastigheten vu og ved hjelp av lydhastigheten (c(T)) ved stillestående medium lagret i lageret (20M).
NO934571A 1992-04-14 1993-12-13 Fremgangsmaate og anordning ved akustisk stroemningsmaaling for aa sikre at maalingen virker NO934571D0 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI921679A FI88209C (fi) 1992-04-14 1992-04-14 Foerfarande och anordning vid akustisk stroemmaetning foer att foersaekra sig om den funktionsfoermaoga
PCT/FI1993/000121 WO1993021500A1 (en) 1992-04-14 1993-03-25 Method and device in acoustic flow measurement for ensuring the operability of said measurement

Publications (2)

Publication Number Publication Date
NO934571L true NO934571L (no) 1993-12-13
NO934571D0 NO934571D0 (no) 1993-12-13

Family

ID=8535121

Family Applications (1)

Application Number Title Priority Date Filing Date
NO934571A NO934571D0 (no) 1992-04-14 1993-12-13 Fremgangsmaate og anordning ved akustisk stroemningsmaaling for aa sikre at maalingen virker

Country Status (7)

Country Link
US (1) US5421212A (no)
EP (1) EP0594802A1 (no)
JP (1) JPH06509422A (no)
CA (1) CA2109948A1 (no)
FI (1) FI88209C (no)
NO (1) NO934571D0 (no)
WO (1) WO1993021500A1 (no)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI94909C (fi) * 1994-04-19 1995-11-10 Valtion Teknillinen Akustinen virtausmittausmenetelmä ja sitä soveltava laite
US5622053A (en) * 1994-09-30 1997-04-22 Cooper Cameron Corporation Turbocharged natural gas engine control system
JPH08122117A (ja) * 1994-10-19 1996-05-17 Matsushita Electric Ind Co Ltd 流量計測装置
US5753824A (en) * 1996-06-12 1998-05-19 Welch Allyn, Inc. Sampling method and apparatus for use with ultrasonic flowmeters
DE19722274A1 (de) * 1997-05-28 1998-12-03 Degussa Verfahren zur Messung von Dichte und Massenstrom
GB9809375D0 (en) * 1998-05-02 1998-07-01 British Gas Plc Fluid temperature measurement
GB9813509D0 (en) * 1998-06-24 1998-08-19 British Gas Plc Measuring the speed of sound of a gas
AUPQ061399A0 (en) * 1999-05-27 1999-06-17 University Of Sydney, The Acoustic flow meters
US6813962B2 (en) * 2000-03-07 2004-11-09 Weatherford/Lamb, Inc. Distributed sound speed measurements for multiphase flow measurement
US6601458B1 (en) * 2000-03-07 2003-08-05 Weatherford/Lamb, Inc. Distributed sound speed measurements for multiphase flow measurement
SE0003348D0 (sv) * 2000-09-18 2000-09-18 Flaekt Ab Anordning och förfarande för att mäta flödet i en fluid
DE10062875B4 (de) * 2000-12-16 2007-02-08 Hydrometer Gmbh Durchflussmesser
WO2004109239A2 (en) * 2003-06-05 2004-12-16 Cidra Corporation Apparatus for measuring velocity and flow rate of a fluid having a non-negligible axial mach number using an array of sensors
JP2005189003A (ja) * 2003-12-24 2005-07-14 Ueda Japan Radio Co Ltd 流量測定および気泡検出の可能な統合システム
DE102004025243A1 (de) * 2004-05-22 2005-12-08 Robert Bosch Gmbh Bestimmung des Empfangszeitpunkts eines Ultraschallsignals mittels Pulsformerfassung
WO2006134199A1 (en) * 2005-06-16 2006-12-21 Justiflow Oy Ultrasound flowmeter arrangement for determining speed of sound
JP4952164B2 (ja) * 2006-09-20 2012-06-13 株式会社デンソー 流量計測素子、質量流量計
CN101210843B (zh) * 2006-12-31 2011-02-09 中国科学院理化技术研究所 一种热声热机声场监测方法及监测系统
US9574919B2 (en) * 2013-06-20 2017-02-21 University Of Southern California Reducing false alarms with multi-modal sensing for pipeline blockage
FR3030726A1 (fr) 2014-12-19 2016-06-24 Gdf Suez Capteur de debit non intrusif autonome en energie et procede de conversion d'energie thermique en energie electrique sur un reseau de transport de fluides mettant en œuvre un tel capteur
US11029284B2 (en) 2018-02-08 2021-06-08 South Dakota Board Of Regents Acoustic resonance chamber
CN108279319B (zh) * 2018-04-03 2024-04-16 浙江省水利河口研究院(浙江省海洋规划设计研究院) Adcp流速遥测监控系统和设备及相应的方法、装置和介质
CN110333176A (zh) * 2019-08-02 2019-10-15 柳州汉西鸣建材发展有限公司 一种流量可控的测量声学流阻的装置及其测量方法
CN110806499B (zh) * 2019-12-06 2020-09-18 江苏南水科技有限公司 流速仪检定装置及其工作方法
RU206371U1 (ru) * 2021-04-26 2021-09-08 Акционерное общество "ЛОМО" Акустический анемометр
JP2024121907A (ja) * 2023-02-28 2024-09-09 株式会社キーエンス 流量センサ

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1201077B (de) * 1963-05-24 1965-09-16 Standard Elektrik Lorenz Ag Verfahren zur UEberwachung der Stroemung von gasfoermigen oder fluessigen Medien
US3537309A (en) * 1968-11-26 1970-11-03 Westinghouse Electric Corp Fluid velocity measuring system
GB1393103A (en) * 1972-01-27 1975-05-07 Kent Instruments Ltd Flow velocity measurement
US4015470A (en) * 1973-12-26 1977-04-05 Trw Inc. Flow measuring method and apparatus
US3974693A (en) * 1975-05-05 1976-08-17 Westinghouse Electric Corporation Multiple time difference ultrasonic flowmeter
US4022058A (en) * 1975-08-07 1977-05-10 Brown Alvin E Apparatus for determining the arrival time of alternating signals
US4445389A (en) * 1981-09-10 1984-05-01 The United States Of America As Represented By The Secretary Of Commerce Long wavelength acoustic flowmeter
US4596133A (en) * 1983-07-29 1986-06-24 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters
FI76885C (fi) * 1987-01-16 1988-12-12 Valtion Teknillinen Akustiskt stroemningsmaetningsfoerfarande och anordning foer tillaempning av detta.
US5228347A (en) * 1991-10-18 1993-07-20 Ore International, Inc. Method and apparatus for measuring flow by using phase advance
FI87493C (fi) * 1991-12-23 1993-01-11 Kytoelae Instrumenttitehdas Foerfarande och anordning foer maetning av stroemningshastigheten av gaser och/eller storheter som kan haerledas fraon denna

Also Published As

Publication number Publication date
WO1993021500A1 (en) 1993-10-28
NO934571D0 (no) 1993-12-13
EP0594802A1 (en) 1994-05-04
FI921679A0 (fi) 1992-04-14
FI88209B (fi) 1992-12-31
FI88209C (fi) 1993-04-13
JPH06509422A (ja) 1994-10-20
CA2109948A1 (en) 1993-10-28
US5421212A (en) 1995-06-06

Similar Documents

Publication Publication Date Title
NO934571L (no) Fremgangsmaate og anordning ved akustisk stroemningsmaaling for aa si kre at maalingen virker
US4590799A (en) Pipeline pig tracking
NO952582L (no) Fremgangsmåte og anordning for å måle volummessig strömningshastighet til gass i en multi-fase fluidblanding
NO932978D0 (no) Fremgangsmaate og anordning for overvaakning av en gasstroem, spesielt i en naturgasstroem
ATE198935T1 (de) Verfahren und vorrichtung zum messen des differentiellen sauerstoffgehaltes zwischen zwei gasströmen
NO20022700L (no) Samtidig bestemmelse av multifase strömningshastigheter og konsentrasjoner
JPH07504744A (ja) 非貫入型流体検知システム
NO20004325L (no) Ultrasonisk 2-faseströmningsapparat, samt lagdelt nivådetektor
DK0572583T3 (da) Fremgangsmåde og indretning til måling af strømningshastighederne for gasser og/eller af størrelser, der kan afledes af samme
GB1526136A (en) Method and apparatus for the measurement of volumetric flowrate in pipes and ducts
GB2276240B (en) Fluid flowmeter
DK1038160T3 (da) Fremgangsmåde og indretning til selvkompenserende måling af gassers volumengennemstrømning
RU93058502A (ru) Способ акустического измерения параметров потока и устройство для его осуществления
SU887960A1 (ru) Устройство дл обнаружени газа в системах с двухфазной смесью
JPH02107924A (ja) 二相流超音波式流量測定方法及び測定装置
CN224109144U (zh) 一种二氧化碳生产线管道采样装置
KR900013296A (ko) 배기 가스의 유량 측정방법
AU537006B2 (en) Density and flowrate of fluid
JPS58167938A (ja) パイプラインの漏洩発生検出装置
JPH0238937A (ja) 圧力容器リーク検出装置
JPS55119300A (en) Detector for leakage from pipeline
JPS55160812A (en) Monitoring method for flow rate of gas
Deliang et al. Optical Fiber Correlation Flowneter
FR2351467A1 (fr) Procede de determination de la periode fondamentale d'un signal vocal a l'aide du signal differentiel delivre par des vocodeurs predictifs.
RU93054005A (ru) Способ и устройство для контроля состава газового потока