FR2426248A1 - Dispositif de mesure du temps de transit d'un signal ultrasonore - Google Patents

Dispositif de mesure du temps de transit d'un signal ultrasonore

Info

Publication number
FR2426248A1
FR2426248A1 FR7912503A FR7912503A FR2426248A1 FR 2426248 A1 FR2426248 A1 FR 2426248A1 FR 7912503 A FR7912503 A FR 7912503A FR 7912503 A FR7912503 A FR 7912503A FR 2426248 A1 FR2426248 A1 FR 2426248A1
Authority
FR
France
Prior art keywords
measuring
transit time
ultrasonic
ultrasonic signal
signal
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
FR7912503A
Other languages
English (en)
French (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.)
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
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of FR2426248A1 publication Critical patent/FR2426248A1/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Thermal Sciences (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
FR7912503A 1978-05-16 1979-05-16 Dispositif de mesure du temps de transit d'un signal ultrasonore Pending FR2426248A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5782178A JPS54149670A (en) 1978-05-16 1978-05-16 Circuit device for detecting ultrasonic wave propagating time

Publications (1)

Publication Number Publication Date
FR2426248A1 true FR2426248A1 (fr) 1979-12-14

Family

ID=13066575

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912503A Pending FR2426248A1 (fr) 1978-05-16 1979-05-16 Dispositif de mesure du temps de transit d'un signal ultrasonore

Country Status (6)

Country Link
JP (1) JPS54149670A (de)
DE (1) DE2920177A1 (de)
DK (1) DK200579A (de)
FR (1) FR2426248A1 (de)
GB (1) GB2021768B (de)
NL (1) NL7903821A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752815A (en) * 1980-09-16 1982-03-29 Yokogawa Hokushin Electric Corp Processing circuit for ultrasonic wave signal
JPS5827086A (ja) * 1981-08-11 1983-02-17 Fuji Electric Co Ltd 超音波伝搬時間検出方法
DE3316630C2 (de) * 1983-05-06 1985-07-25 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Vorrichtung zur Laufzeitbestimmung von Ultraschallimpulsen in einem Fluid
JPH0749976B2 (ja) * 1986-02-26 1995-05-31 富士電機株式会社 超音波式測定装置
GB8918068D0 (en) * 1989-08-08 1989-09-20 Front Engineering Ltd An apparatus for determining the time taken for sound to cross a body of fluid in an enclosure
JP4538163B2 (ja) * 2001-03-30 2010-09-08 サーパス工業株式会社 流速測定方法及び流速測定装置並びに流量測定方法及び流量測定装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2641771A1 (de) * 1976-09-14 1978-03-16 Fuji Electric Co Ltd Messeinrichtung mit einem zeitdifferenz-messglied
DE2641772A1 (de) * 1976-09-14 1978-03-16 Fuji Electric Co Ltd Durchfluss- oder stroemungsmesseinrichtung
DE2832835A1 (de) * 1977-07-26 1979-03-01 Fuji Electric Co Ltd Ultraschall-messanordnung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49130261A (de) * 1973-04-13 1974-12-13

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
DE2641771A1 (de) * 1976-09-14 1978-03-16 Fuji Electric Co Ltd Messeinrichtung mit einem zeitdifferenz-messglied
DE2641772A1 (de) * 1976-09-14 1978-03-16 Fuji Electric Co Ltd Durchfluss- oder stroemungsmesseinrichtung
DE2832835A1 (de) * 1977-07-26 1979-03-01 Fuji Electric Co Ltd Ultraschall-messanordnung

Also Published As

Publication number Publication date
JPS54149670A (en) 1979-11-24
DE2920177A1 (de) 1979-11-22
NL7903821A (nl) 1979-11-20
DK200579A (da) 1979-11-17
GB2021768A (en) 1979-12-05
GB2021768B (en) 1982-08-18

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