ATE240505T1 - Verfahren und vorrichtung zur akustischen durchflussmessung - Google Patents

Verfahren und vorrichtung zur akustischen durchflussmessung

Info

Publication number
ATE240505T1
ATE240505T1 AT95914364T AT95914364T ATE240505T1 AT E240505 T1 ATE240505 T1 AT E240505T1 AT 95914364 T AT95914364 T AT 95914364T AT 95914364 T AT95914364 T AT 95914364T AT E240505 T1 ATE240505 T1 AT E240505T1
Authority
AT
Austria
Prior art keywords
pct
downstream
upstream
acoustic
measurement
Prior art date
Application number
AT95914364T
Other languages
English (en)
Inventor
Pekka Hiismaeki
Original Assignee
Valtion Teknillinen
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 Valtion Teknillinen filed Critical Valtion Teknillinen
Application granted granted Critical
Publication of ATE240505T1 publication Critical patent/ATE240505T1/de

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
    • G01F1/66—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
    • G01F1/668—Compensating or correcting for variations in velocity of sound
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
AT95914364T 1994-04-19 1995-03-29 Verfahren und vorrichtung zur akustischen durchflussmessung ATE240505T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI941805A FI94909C (fi) 1994-04-19 1994-04-19 Akustinen virtausmittausmenetelmä ja sitä soveltava laite
PCT/FI1995/000168 WO1995028619A1 (en) 1994-04-19 1995-03-29 Acoustic flow measurement method and measurement apparatus implementing the method

Publications (1)

Publication Number Publication Date
ATE240505T1 true ATE240505T1 (de) 2003-05-15

Family

ID=8540553

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95914364T ATE240505T1 (de) 1994-04-19 1995-03-29 Verfahren und vorrichtung zur akustischen durchflussmessung

Country Status (7)

Country Link
US (1) US5770806A (de)
EP (1) EP0756697B1 (de)
AT (1) ATE240505T1 (de)
CA (1) CA2188145C (de)
DE (1) DE69530764T2 (de)
FI (1) FI94909C (de)
WO (1) WO1995028619A1 (de)

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Also Published As

Publication number Publication date
WO1995028619A1 (en) 1995-10-26
US5770806A (en) 1998-06-23
CA2188145A1 (en) 1995-10-26
DE69530764D1 (de) 2003-06-18
FI94909C (fi) 1995-11-10
FI941805A0 (fi) 1994-04-19
EP0756697B1 (de) 2003-05-14
EP0756697A1 (de) 1997-02-05
CA2188145C (en) 2005-03-22
FI94909B (fi) 1995-07-31
DE69530764T2 (de) 2004-02-19

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