FR2426246A1 - Instrument de mesure a ultrasons - Google Patents

Instrument de mesure a ultrasons

Info

Publication number
FR2426246A1
FR2426246A1 FR7912502A FR7912502A FR2426246A1 FR 2426246 A1 FR2426246 A1 FR 2426246A1 FR 7912502 A FR7912502 A FR 7912502A FR 7912502 A FR7912502 A FR 7912502A FR 2426246 A1 FR2426246 A1 FR 2426246A1
Authority
FR
France
Prior art keywords
ultrasonic
ultrasonic measurement
measurement instrument
detection
detector
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.)
Pending
Application number
FR7912502A
Other languages
English (en)
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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
Priority claimed from JP53057822A external-priority patent/JPS5914171B2/ja
Priority claimed from JP53057823A external-priority patent/JPS5914172B2/ja
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of FR2426246A1 publication Critical patent/FR2426246A1/fr
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

L'invention concerne les techniques de mesure par ultrasons. Un débitmètre à ultrasons comporte notamment un détecteur de faux déclenchement 41 qui détermine si la détection de l'arrivée d'un signal acoustique s'effectue sur la première ou la seconde onde de ce signal. Ce détecteur modifie les seuils de détection de façon appropriée, pour éviter toute erreur de mesure, en dépit des variations des conditions du fluide sur lequel porte la mesure. Application aux débitmètres à ultrasons.
FR7912502A 1978-05-16 1979-05-16 Instrument de mesure a ultrasons Pending FR2426246A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP53057822A JPS5914171B2 (ja) 1978-05-16 1978-05-16 超音波式測定装置
JP53057823A JPS5914172B2 (ja) 1978-05-16 1978-05-16 超音波式測定装置

Publications (1)

Publication Number Publication Date
FR2426246A1 true FR2426246A1 (fr) 1979-12-14

Family

ID=26398907

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912502A Pending FR2426246A1 (fr) 1978-05-16 1979-05-16 Instrument de mesure a ultrasons

Country Status (5)

Country Link
DE (1) DE2920176A1 (fr)
DK (1) DK200679A (fr)
FR (1) FR2426246A1 (fr)
GB (1) GB2022255B (fr)
NL (1) NL7903822A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452090A (en) * 1982-05-17 1984-06-05 Airco, Inc. Ultrasonic flowmeter
ATE105080T1 (de) * 1989-07-14 1994-05-15 Haiges Elektronik Gmbh Verfahren zur messung eines zeitlichen versatzes einander zugeordneter ultraschallsignale und zugehoeriger messanordnungen.
DE4114233C2 (de) * 1991-04-26 1996-05-02 Flexim Flexible Industriemeste Anordnung zur Ultraschall-Durchflußmessung
US6766276B1 (en) * 1999-12-29 2004-07-20 Actaris S.A.S. Method and device for detecting a dysfunction of an ulatrasonic flowmeter
EP2383550A1 (fr) 2010-04-28 2011-11-02 Miitors ApS Débitmètre à ultrasons
DE102013013927A1 (de) * 2013-08-21 2015-02-26 Acam-Messelectronic Gmbh Verfahren und Vorrichtung zum Messen der Fließgeschwindigkeit einer Flüssigkeit mittels Ultraschall
CN107607168B (zh) * 2017-07-25 2021-04-09 辽宁航宇星物联仪表科技有限公司 一种户用超声波水表自适应方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569827A (en) * 1965-11-16 1971-03-09 Nasa Apparatus for detecting the amount of material in a resonant cavity container
US3818757A (en) * 1972-05-05 1974-06-25 Saratoga Sys Inc Dual path ultrasonic fluid flow metering system and method
US3894431A (en) * 1972-04-04 1975-07-15 Atomic Energy Authority Uk Apparatus for indicating fluid flow velocity
DE2732074A1 (de) * 1976-07-16 1978-01-19 Nippon Kokan Kk Vorrichtung zur feststellung von aenderungen der parameter einer in einer rohrleitung stroemenden fluessigkeit nach dem rueckkopplungs(pfeif)verfahren
DE2641772A1 (de) * 1976-09-14 1978-03-16 Fuji Electric Co Ltd Durchfluss- oder stroemungsmesseinrichtung
DE2641771A1 (de) * 1976-09-14 1978-03-16 Fuji Electric Co Ltd Messeinrichtung mit einem zeitdifferenz-messglied
US4080574A (en) * 1974-01-31 1978-03-21 United Kingdom Atomic Energy Authority Apparatus for providing time reference signals
DE2832835A1 (de) * 1977-07-26 1979-03-01 Fuji Electric Co Ltd Ultraschall-messanordnung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569827A (en) * 1965-11-16 1971-03-09 Nasa Apparatus for detecting the amount of material in a resonant cavity container
US3894431A (en) * 1972-04-04 1975-07-15 Atomic Energy Authority Uk Apparatus for indicating fluid flow velocity
US3818757A (en) * 1972-05-05 1974-06-25 Saratoga Sys Inc Dual path ultrasonic fluid flow metering system and method
US4080574A (en) * 1974-01-31 1978-03-21 United Kingdom Atomic Energy Authority Apparatus for providing time reference signals
DE2732074A1 (de) * 1976-07-16 1978-01-19 Nippon Kokan Kk Vorrichtung zur feststellung von aenderungen der parameter einer in einer rohrleitung stroemenden fluessigkeit nach dem rueckkopplungs(pfeif)verfahren
DE2641772A1 (de) * 1976-09-14 1978-03-16 Fuji Electric Co Ltd Durchfluss- oder stroemungsmesseinrichtung
DE2641771A1 (de) * 1976-09-14 1978-03-16 Fuji Electric Co Ltd Messeinrichtung mit einem zeitdifferenz-messglied
DE2832835A1 (de) * 1977-07-26 1979-03-01 Fuji Electric Co Ltd Ultraschall-messanordnung

Also Published As

Publication number Publication date
DE2920176A1 (de) 1979-11-22
DK200679A (da) 1979-11-17
GB2022255A (en) 1979-12-12
GB2022255B (en) 1982-09-15
NL7903822A (nl) 1979-11-20

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