FR2281571B1 - - Google Patents

Info

Publication number
FR2281571B1
FR2281571B1 FR7427312A FR7427312A FR2281571B1 FR 2281571 B1 FR2281571 B1 FR 2281571B1 FR 7427312 A FR7427312 A FR 7427312A FR 7427312 A FR7427312 A FR 7427312A FR 2281571 B1 FR2281571 B1 FR 2281571B1
Authority
FR
France
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
Application number
FR7427312A
Other languages
French (fr)
Other versions
FR2281571A1 (fr
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR7427312A priority Critical patent/FR2281571A1/fr
Publication of FR2281571A1 publication Critical patent/FR2281571A1/fr
Application granted granted Critical
Publication of FR2281571B1 publication Critical patent/FR2281571B1/fr
Granted 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
    • 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)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Volume Flow (AREA)
FR7427312A 1974-08-06 1974-08-06 Perfectionnements aux appareils pour mesurer la vitesse ou le debit d'un courant de liquide par determination de l'anisotropie de propagation d'ondes ultrasonores dans le courant Granted FR2281571A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7427312A FR2281571A1 (fr) 1974-08-06 1974-08-06 Perfectionnements aux appareils pour mesurer la vitesse ou le debit d'un courant de liquide par determination de l'anisotropie de propagation d'ondes ultrasonores dans le courant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7427312A FR2281571A1 (fr) 1974-08-06 1974-08-06 Perfectionnements aux appareils pour mesurer la vitesse ou le debit d'un courant de liquide par determination de l'anisotropie de propagation d'ondes ultrasonores dans le courant

Publications (2)

Publication Number Publication Date
FR2281571A1 FR2281571A1 (fr) 1976-03-05
FR2281571B1 true FR2281571B1 (ref) 1976-12-31

Family

ID=9142170

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7427312A Granted FR2281571A1 (fr) 1974-08-06 1974-08-06 Perfectionnements aux appareils pour mesurer la vitesse ou le debit d'un courant de liquide par determination de l'anisotropie de propagation d'ondes ultrasonores dans le courant

Country Status (1)

Country Link
FR (1) FR2281571A1 (ref)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454101A1 (fr) * 1979-04-11 1980-11-07 Onera (Off Nat Aerospatiale) Appareil de mesure de la vitesse d'une veine liquide par ultra-sons
GB9119742D0 (en) * 1991-09-16 1991-10-30 British Gas Plc Measurement system
CN104007286A (zh) * 2014-06-10 2014-08-27 上海航征测控系统有限公司 一种用于河道表面流速的自动监测系统

Also Published As

Publication number Publication date
FR2281571A1 (fr) 1976-03-05

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Legal Events

Date Code Title Description
CL Concession to grant licenses
AM Act modifying the rights related to an application or a patent
AM Act modifying the rights related to an application or a patent
ST Notification of lapse