NL7810630A - Inrichting voor het meten van de snelheid van fluidumstromingen. - Google Patents

Inrichting voor het meten van de snelheid van fluidumstromingen. Download PDF

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Publication number
NL7810630A
NL7810630A NL7810630A NL7810630A NL7810630A NL 7810630 A NL7810630 A NL 7810630A NL 7810630 A NL7810630 A NL 7810630A NL 7810630 A NL7810630 A NL 7810630A NL 7810630 A NL7810630 A NL 7810630A
Authority
NL
Netherlands
Prior art keywords
circuit
gate
output
voltage
transducer
Prior art date
Application number
NL7810630A
Other languages
English (en)
Dutch (nl)
Original Assignee
Rheometron Ag
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 Rheometron Ag filed Critical Rheometron Ag
Priority to NL7810630A priority Critical patent/NL7810630A/nl
Priority to DE7979901412T priority patent/DE2966272D1/de
Priority to PCT/NL1979/000005 priority patent/WO1980000876A1/en
Priority to JP50191579A priority patent/JPS55500844A/ja
Priority to US06/205,998 priority patent/US4367654A/en
Publication of NL7810630A publication Critical patent/NL7810630A/nl
Priority to EP79901412A priority patent/EP0020537B1/en
Priority to JP1990000066U priority patent/JPH032819Y2/ja

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

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)
  • Geophysics And Detection Of Objects (AREA)
NL7810630A 1978-10-25 1978-10-25 Inrichting voor het meten van de snelheid van fluidumstromingen. NL7810630A (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL7810630A NL7810630A (nl) 1978-10-25 1978-10-25 Inrichting voor het meten van de snelheid van fluidumstromingen.
DE7979901412T DE2966272D1 (en) 1978-10-25 1979-10-25 A device for measuring the flow velocity of fluids
PCT/NL1979/000005 WO1980000876A1 (en) 1978-10-25 1979-10-25 A device for measuring the flow velocity of fluids
JP50191579A JPS55500844A (ja) 1978-10-25 1979-10-25
US06/205,998 US4367654A (en) 1978-10-25 1979-10-25 Device for measuring the flow velocity of fluids
EP79901412A EP0020537B1 (en) 1978-10-25 1980-05-07 A device for measuring the flow velocity of fluids
JP1990000066U JPH032819Y2 (ja) 1978-10-25 1990-01-04

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7810630 1978-10-25
NL7810630A NL7810630A (nl) 1978-10-25 1978-10-25 Inrichting voor het meten van de snelheid van fluidumstromingen.

Publications (1)

Publication Number Publication Date
NL7810630A true NL7810630A (nl) 1980-04-29

Family

ID=19831770

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7810630A NL7810630A (nl) 1978-10-25 1978-10-25 Inrichting voor het meten van de snelheid van fluidumstromingen.

Country Status (6)

Country Link
US (1) US4367654A (ja)
EP (1) EP0020537B1 (ja)
JP (2) JPS55500844A (ja)
DE (1) DE2966272D1 (ja)
NL (1) NL7810630A (ja)
WO (1) WO1980000876A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817448A (en) * 1986-09-03 1989-04-04 Micro Motion, Inc. Auto zero circuit for flow meter
FR2749652B1 (fr) * 1996-06-07 1998-08-21 Schlumberger Ind Sa Procede de mesure du temps de propagation d'un signal acoustique dans un fluide par passage a zero dudit signal acoustique
US5777238A (en) * 1996-06-12 1998-07-07 Welch Allyn, Inc. Driver-receiver apparatus for use with ultrasonic flowmeters
DE10163566A1 (de) * 2001-12-21 2003-07-10 Flowtec Ag Pulsgenerator
EP2339301A1 (en) * 2009-12-23 2011-06-29 Kamstrup A/S Ultrasonic flowmeter with simultaneously driven ultrasonic transducers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1355634A (fr) * 1963-02-02 1964-03-20 Schlumberger Prospection Appareil de mesure de la vitesse d'écoulement des fluides
DE2010742A1 (ja) * 1969-03-06 1970-10-15
US4080574A (en) * 1974-01-31 1978-03-21 United Kingdom Atomic Energy Authority Apparatus for providing time reference signals
JPS5437949B2 (ja) * 1974-07-13 1979-11-17
US3940985A (en) * 1975-04-18 1976-03-02 Westinghouse Electric Corporation Fluid flow measurement system for pipes
GB1602185A (en) * 1977-06-03 1981-11-11 Standard Telephones Cables Ltd Measuring fluid flow
NL7713998A (nl) * 1977-12-16 1979-06-19 Tno Inrichting voor het meten van de snelheid van fluidumstromingen.
NL7801401A (nl) * 1978-02-07 1979-08-09 Tno Stelsel voor het meten van de snelheid en/of het debiet van een fluidum.

Also Published As

Publication number Publication date
EP0020537B1 (en) 1983-10-05
DE2966272D1 (en) 1983-11-10
JPH02107025U (ja) 1990-08-24
US4367654A (en) 1983-01-11
JPS55500844A (ja) 1980-10-23
WO1980000876A1 (en) 1980-05-01
EP0020537A1 (en) 1981-01-07
JPH032819Y2 (ja) 1991-01-25

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