NO761513L - - Google Patents

Info

Publication number
NO761513L
NO761513L NO761513A NO761513A NO761513L NO 761513 L NO761513 L NO 761513L NO 761513 A NO761513 A NO 761513A NO 761513 A NO761513 A NO 761513A NO 761513 L NO761513 L NO 761513L
Authority
NO
Norway
Prior art keywords
time interval
flow
counter
circuit
pulses
Prior art date
Application number
NO761513A
Other languages
English (en)
Norwegian (no)
Inventor
C E Hardies
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of NO761513L publication Critical patent/NO761513L/no

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)
NO761513A 1975-05-05 1976-05-03 NO761513L (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/574,671 US3974693A (en) 1975-05-05 1975-05-05 Multiple time difference ultrasonic flowmeter

Publications (1)

Publication Number Publication Date
NO761513L true NO761513L (enExample) 1976-11-08

Family

ID=24297126

Family Applications (1)

Application Number Title Priority Date Filing Date
NO761513A NO761513L (enExample) 1975-05-05 1976-05-03

Country Status (11)

Country Link
US (1) US3974693A (enExample)
JP (1) JPS51136445A (enExample)
AU (1) AU503735B2 (enExample)
CA (1) CA1058746A (enExample)
DE (1) DE2619726A1 (enExample)
FR (1) FR2331001A1 (enExample)
GB (1) GB1549652A (enExample)
IT (1) IT1068953B (enExample)
NO (1) NO761513L (enExample)
SE (1) SE406011B (enExample)
ZA (1) ZA761758B (enExample)

Families Citing this family (14)

* 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
FR2551204B1 (fr) * 1983-04-12 1987-07-31 Faes Yves Procede et dispositif de mesure du temps de propagation d'une onde dans un ecoulement et application a un procede de determination de la vitesse de cet ecoulement
EP0179541A3 (en) * 1984-10-19 1987-08-26 Smith Meter Inc. Sonic flow meter
NZ243294A (en) * 1991-06-25 1995-04-27 Commw Scient Ind Res Org Time of flight of acoustic wave packets through fluid: reduction of higher order acoustic mode effects
FI88209C (fi) * 1992-04-14 1993-04-13 Kytoelae Instrumenttitehdas Foerfarande och anordning vid akustisk stroemmaetning foer att foersaekra sig om den funktionsfoermaoga
SE503614C2 (sv) * 1994-10-24 1996-07-15 Jerker Delsing Sätt vid mätning i ett fluidum med hjälp av sing-around- teknik, anordning vid mätinstrument av sing-around-typ och mätinstrument av sing-around-typ
FR2734361B1 (fr) 1995-05-17 1997-07-18 Schlumberger Ind Sa Dispositif pour la mesure de la vitesse d'ecoulement d'un fluide par ultrasons
DE19703243A1 (de) * 1997-01-29 1998-07-30 Tokheim Corp Vorrichtung zur Volumenmessung strömender Medien sowie entsprechendes Verfahren
US6158288A (en) * 1999-01-28 2000-12-12 Dolphin Technology, Inc. Ultrasonic system for measuring flow rate, fluid velocity, and pipe diameter based upon time periods
US6381549B1 (en) 1999-01-28 2002-04-30 Dolphin Technology, Inc. System and method using digital filters and neural networks to determine fluid flow
WO2000046575A1 (en) * 1999-02-04 2000-08-10 Bechtel Bwxt Idaho, Llc Ultrasonic flow metering system
US6468222B1 (en) * 1999-08-02 2002-10-22 Healthetech, Inc. Metabolic calorimeter employing respiratory gas analysis
US6487916B1 (en) * 2000-02-02 2002-12-03 Bechtel Bxwt Idaho, Llc Ultrasonic flow metering system
US7291114B2 (en) * 2002-04-01 2007-11-06 Microlife Corporation System and method of determining an individualized drug administration protocol

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3625057A (en) * 1967-11-01 1971-12-07 Mitsubishi Electric Corp Ultrasonic flowmeter
GB1285175A (en) * 1968-10-04 1972-08-09 Atomic Energy Authority Uk Improvements in or relating to apparatus for measuring the flow velocity of fluids
US3653259A (en) * 1970-03-06 1972-04-04 Westinghouse Electric Corp Ultrasonic flowmeter systems
US3882722A (en) * 1973-09-07 1975-05-13 Westinghouse Electric Corp Multiple time difference ultrasonic flowmeters
US3935735A (en) * 1974-09-03 1976-02-03 Badger Meter, Inc. Ultrasonic flow meter

Also Published As

Publication number Publication date
AU503735B2 (en) 1979-09-20
FR2331001A1 (fr) 1977-06-03
DE2619726A1 (de) 1976-11-18
JPS51136445A (en) 1976-11-25
IT1068953B (it) 1985-03-21
SE406011B (sv) 1979-01-15
GB1549652A (en) 1979-08-08
US3974693A (en) 1976-08-17
SE7604208L (sv) 1976-11-06
ZA761758B (en) 1977-03-30
AU1294676A (en) 1977-10-20
CA1058746A (en) 1979-07-17

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