DE69205274D1 - Verfahren und vorrichtung zur messung von strömungsgeschwindigkeiten von gasen und/oder davon abgeleiteter grössen. - Google Patents

Verfahren und vorrichtung zur messung von strömungsgeschwindigkeiten von gasen und/oder davon abgeleiteter grössen.

Info

Publication number
DE69205274D1
DE69205274D1 DE69205274T DE69205274T DE69205274D1 DE 69205274 D1 DE69205274 D1 DE 69205274D1 DE 69205274 T DE69205274 T DE 69205274T DE 69205274 T DE69205274 T DE 69205274T DE 69205274 D1 DE69205274 D1 DE 69205274D1
Authority
DE
Germany
Prior art keywords
measurement
sound
filters
pct
frequency
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.)
Expired - Fee Related
Application number
DE69205274T
Other languages
English (en)
Other versions
DE69205274T2 (de
Inventor
Tarmo Maeyraenen
Sauli Koukkari
Pekka Hiismaeki
Matti Knuuttila
Leif Kall
Antero Tiitta
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.)
Instrumenttitehdas Kytola Oy
Original Assignee
Instrumenttitehdas Kytola Oy
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 Instrumenttitehdas Kytola Oy filed Critical Instrumenttitehdas Kytola Oy
Application granted granted Critical
Publication of DE69205274D1 publication Critical patent/DE69205274D1/de
Publication of DE69205274T2 publication Critical patent/DE69205274T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01F1/66—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
    • 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)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Industrial Gases (AREA)
DE69205274T 1991-12-23 1992-11-12 Verfahren und vorrichtung zur messung von strömungsgeschwindigkeiten von gasen und/oder davon abgeleiteter grössen. Expired - Fee Related DE69205274T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI916102A FI87493C (fi) 1991-12-23 1991-12-23 Foerfarande och anordning foer maetning av stroemningshastigheten av gaser och/eller storheter som kan haerledas fraon denna
PCT/FI1992/000307 WO1993013390A1 (en) 1991-12-23 1992-11-12 Method and device for measurement of the flow velocities of gases and/or of quantities that can be derived from same

Publications (2)

Publication Number Publication Date
DE69205274D1 true DE69205274D1 (de) 1995-11-09
DE69205274T2 DE69205274T2 (de) 1996-05-02

Family

ID=8533731

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69205274T Expired - Fee Related DE69205274T2 (de) 1991-12-23 1992-11-12 Verfahren und vorrichtung zur messung von strömungsgeschwindigkeiten von gasen und/oder davon abgeleiteter grössen.

Country Status (13)

Country Link
US (1) US5513535A (de)
EP (1) EP0572583B1 (de)
JP (1) JPH06507724A (de)
CN (1) CN1076024A (de)
AT (1) ATE128763T1 (de)
CA (1) CA2101652C (de)
DE (1) DE69205274T2 (de)
DK (1) DK0572583T3 (de)
ES (1) ES2080525T3 (de)
FI (1) FI87493C (de)
GR (1) GR3018591T3 (de)
NO (1) NO307112B1 (de)
WO (1) WO1993013390A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI88208C (fi) * 1992-04-01 1993-04-13 Valtion Teknillinen Foerfarande och anordning foer akustisk maetning av en gasstroem
FI88209C (fi) * 1992-04-14 1993-04-13 Kytoelae Instrumenttitehdas Foerfarande och anordning vid akustisk stroemmaetning foer att foersaekra sig om den funktionsfoermaoga
FI94909C (fi) * 1994-04-19 1995-11-10 Valtion Teknillinen Akustinen virtausmittausmenetelmä ja sitä soveltava laite
US5531099A (en) * 1994-11-09 1996-07-02 At&T Corp. Underground conduit defect localization
FI105363B (fi) * 1997-07-04 2000-07-31 Neles Field Controls Oy Menetelmä virtauksen mittaamiseksi ja virtausmittari
JP4556253B2 (ja) * 1999-06-24 2010-10-06 パナソニック株式会社 流量計
AU5569300A (en) * 1999-06-24 2001-01-31 Matsushita Electric Industrial Co., Ltd. Flowmeter
WO2001023845A1 (en) 1999-09-27 2001-04-05 Ohio University Determining gas and liquid flow rates in a multi-phase flow
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
JP4135056B2 (ja) * 2001-02-15 2008-08-20 横河電機株式会社 超音波流量計
JP4271979B2 (ja) * 2003-04-21 2009-06-03 帝人株式会社 超音波式ガス濃度流量測定方法および装置
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
WO2006134199A1 (en) * 2005-06-16 2006-12-21 Justiflow Oy Ultrasound flowmeter arrangement for determining speed of sound
CN101900585B (zh) * 2009-05-25 2012-07-04 哈尔滨理工大学 电磁流量计采用窄带滤波信号调理的方法及设备
US10288641B2 (en) * 2010-01-29 2019-05-14 Worcester Polytechnic Institute System and method of measuring 2- and 3-dimensional velocity vector using cross-correlation velocimetry
CN102830245A (zh) * 2012-08-15 2012-12-19 华北电力大学 一种基于声学的锅炉炉膛烟气流速监测系统及监测方法
EP3056885B1 (de) 2015-02-11 2019-08-14 General Electric Technology GmbH Messsystem und Verfahren zur Messung der Temperatur und Geschwindigkeit eines Fluidstroms
CN111028487B (zh) * 2019-12-27 2021-07-13 杭州青泓科技有限公司 一种水处理监测方法及系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826912A (en) * 1948-12-27 1958-03-18 Kritz Jack Acoustic velocity measuring system
US3568661A (en) * 1968-10-02 1971-03-09 Us Health Education & Welfare Frequency modulated ultrasound technique for measurement of fluid velocity
USRE28686E (en) * 1970-07-06 1976-01-20 Measurement of fluid flow rates
US4019038A (en) * 1971-06-10 1977-04-19 Kent Instruments Limited Correlators
GB1393103A (en) * 1972-01-27 1975-05-07 Kent Instruments Ltd Flow velocity measurement
US3819919A (en) * 1972-12-08 1974-06-25 Gunigle R Mc Tracking system for time-displaced signals
WO1979001119A1 (en) * 1978-05-25 1979-12-27 Sybron Corp Peak tracking correlator
US4312238A (en) * 1979-12-13 1982-01-26 Rey Thomas J Electro-acoustic flowmeter
FI76885C (fi) * 1987-01-16 1988-12-12 Valtion Teknillinen Akustiskt stroemningsmaetningsfoerfarande och anordning foer tillaempning av detta.
US4787252A (en) * 1987-09-30 1988-11-29 Panametrics, Inc. Differential correlation analyzer
GB2227841B (en) * 1988-12-03 1993-05-12 Schlumberger Ltd Impedance cross correlation logging tool
US5226328A (en) * 1989-11-17 1993-07-13 Ads Environmental Services, Inc. Velocity measurement system
CA2048960C (en) * 1990-08-20 1995-08-01 Hisashi Hagiwara Ultrasonic doppler blood flowmeter

Also Published As

Publication number Publication date
NO932977L (no) 1993-08-20
GR3018591T3 (en) 1996-04-30
CA2101652A1 (en) 1993-06-24
CA2101652C (en) 2000-01-18
EP0572583A1 (de) 1993-12-08
ES2080525T3 (es) 1996-02-01
CN1076024A (zh) 1993-09-08
DK0572583T3 (da) 1996-02-12
DE69205274T2 (de) 1996-05-02
FI916102A0 (fi) 1991-12-23
US5513535A (en) 1996-05-07
NO932977D0 (no) 1993-08-20
JPH06507724A (ja) 1994-09-01
NO307112B1 (no) 2000-02-07
WO1993013390A1 (en) 1993-07-08
ATE128763T1 (de) 1995-10-15
FI87493B (fi) 1992-09-30
FI87493C (fi) 1993-01-11
EP0572583B1 (de) 1995-10-04

Similar Documents

Publication Publication Date Title
DE69205274D1 (de) Verfahren und vorrichtung zur messung von strömungsgeschwindigkeiten von gasen und/oder davon abgeleiteter grössen.
US6460402B1 (en) Ultrasonic fluid quality sensor system
ATE240505T1 (de) Verfahren und vorrichtung zur akustischen durchflussmessung
ATE226689T1 (de) Vorrichtung und verfahren zur aktiven reduzierung der schallemission von strahltriebwerken und zu deren diagnose
SE9404041D0 (sv) Akustisk vindmätare
JPH0618490A (ja) 材料中のアコースティックエミッション源を探索する方法及び装置
NO934571L (no) Fremgangsmaate og anordning ved akustisk stroemningsmaaling for aa si kre at maalingen virker
EP0172461A2 (de) Vorrichtung und Verfahren zur Messung der Konzentration eines paramagnetischen Gase
CN106289121A (zh) 一种变径管等效管长的计算方法
DE69221295T2 (de) Vorrichtung und verfahren zum justieren eines bandpassfilters, insbesondere eines kombinierfilters
JPH11271168A (ja) 漏洩検知方法
DE69409849D1 (de) Verfahren und Vorrichtung zur Extraktion von Teilchen aus Dieselmotorabgas
ATE217171T1 (de) Test- und analysesystem für atemfunktionen
RU2428622C2 (ru) Комплекс обнаружения повреждения трубопровода
JPH0585021B2 (de)
ATE293248T1 (de) Vorrichtung und verfahren zur detektion von mikrobiologischer verschmutzung in wässrigen systemen
SU1374069A1 (ru) Способ определени акустических характеристик элементов системы выпуска двигател внутреннего сгорани
SU861704A1 (ru) Способ определени технического состо ни распылителей форсунок дизелей и устройство дл его осуществлени
Waldherr et al. Pressure-density correlation in a turbulent reacting flow
RU93058502A (ru) Способ акустического измерения параметров потока и устройство для его осуществления
Wilken et al. Determination of the Transfer Function of a Time-Varying Transfer Channel by a Correlation Method. Illustrated on Sound Propagation Through a Turbulent Medium
SE9701539L (sv) Anordning och förfarande för filtrering av en mottagen signal
JPS6252484A (ja) 卓越周波数算出装置
KR20000010637A (ko) 도관 내에서 유동하는 콘크리트의 속도 프로파일 검출 장치
JPS5847645B2 (ja) 機関の吸気装置

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee