IT1209574B - Apparecchiatura e procedimento per la misurazione di intervalli di tempo, particolarmente per misurare il tempo di transito di energia ad ultrasuoni che attraversa un mezzo fluido. - Google Patents

Apparecchiatura e procedimento per la misurazione di intervalli di tempo, particolarmente per misurare il tempo di transito di energia ad ultrasuoni che attraversa un mezzo fluido.

Info

Publication number
IT1209574B
IT1209574B IT8422114A IT2211484A IT1209574B IT 1209574 B IT1209574 B IT 1209574B IT 8422114 A IT8422114 A IT 8422114A IT 2211484 A IT2211484 A IT 2211484A IT 1209574 B IT1209574 B IT 1209574B
Authority
IT
Italy
Prior art keywords
measure
procedure
fluid medium
ultrasonic energy
time intervals
Prior art date
Application number
IT8422114A
Other languages
English (en)
Other versions
IT8422114A0 (it
Inventor
David Russell Wallace
James M Korba
James E Matson
Lawrence C Lynnworth
Original Assignee
Panametrics
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 Panametrics filed Critical Panametrics
Publication of IT8422114A0 publication Critical patent/IT8422114A0/it
Application granted granted Critical
Publication of IT1209574B publication Critical patent/IT1209574B/it

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
    • 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
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
IT8422114A 1983-07-29 1984-07-30 Apparecchiatura e procedimento per la misurazione di intervalli di tempo, particolarmente per misurare il tempo di transito di energia ad ultrasuoni che attraversa un mezzo fluido. IT1209574B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/518,738 US4515021A (en) 1983-07-29 1983-07-29 Intervalometer time measurement apparatus and method

Publications (2)

Publication Number Publication Date
IT8422114A0 IT8422114A0 (it) 1984-07-30
IT1209574B true IT1209574B (it) 1989-08-30

Family

ID=24065270

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8422114A IT1209574B (it) 1983-07-29 1984-07-30 Apparecchiatura e procedimento per la misurazione di intervalli di tempo, particolarmente per misurare il tempo di transito di energia ad ultrasuoni che attraversa un mezzo fluido.

Country Status (5)

Country Link
US (1) US4515021A (it)
EP (1) EP0154640A4 (it)
JP (1) JPS60502171A (it)
IT (1) IT1209574B (it)
WO (1) WO1985000653A1 (it)

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DE3508900A1 (de) * 1985-03-13 1986-09-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anordnung zur gewinnung eines schaltkriteriums aus einer feldstaerkemessung
US4792614A (en) * 1987-08-05 1988-12-20 American Home Products Corporation Substituted furans as inhibitors of 3-hydroxy-3-methylglutaryl-coa reductase
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
NZ243293A (en) * 1991-06-25 1995-03-28 Commw Scient Ind Res Org Fluid flow meter: time of travel of acoustic wave packet through fluid
US5277070A (en) * 1991-08-01 1994-01-11 Xecutek Corporation Ultrasonic gas flow measurement method and apparatus
US5329821A (en) * 1992-05-08 1994-07-19 Nusonics, Inc. Autoranging sonic flowmeter
WO1995002169A2 (en) * 1993-07-06 1995-01-19 Daniel Industries, Inc. Measuring the time of flight of a signal
DE4420329C1 (de) * 1994-06-10 1995-10-26 Hydrometer Gmbh Verfahren zur Ultraschall-Messung von Durchflußmengen von strömenden Fluiden
US5650571A (en) * 1995-03-13 1997-07-22 Freud; Paul J. Low power signal processing and measurement apparatus
EP0886763A1 (en) * 1995-09-05 1998-12-30 Daniel Industries, Inc., Measuring time of flight of a signal
JPH11295419A (ja) * 1998-04-15 1999-10-29 Sony Corp 送受信分離型反射方式の超音波距離測定方法とその装置
SE9802762D0 (sv) * 1998-08-19 1998-08-19 Siemens Elema Ab Zero crossing detector and method of determining a zero crossing point
US6460402B1 (en) * 1999-02-04 2002-10-08 Bechtel Bwtx Idaho, Llc Ultrasonic fluid quality sensor system
DE19911762A1 (de) * 1999-03-16 2000-09-21 Peter Ganshorn Verfahren zur Bestimmung der Strömungsgeschwindigkeit und/oder der Molmasse von flüssigen oder gasförmigen Medien
JP2001124745A (ja) 1999-08-16 2001-05-11 Ngk Spark Plug Co Ltd 超音波伝播時間測定方法、ガス圧力測定方法、ガス流量測定方法、及びガスセンサ
DK199901477A (da) * 1999-10-14 2001-04-15 Danfoss As Sende- og modtagekredsløb for ultralydsflowmåler
JP3616324B2 (ja) * 2000-11-27 2005-02-02 東京計装株式会社 伝播時間差方式による超音波流量計
JP2002243536A (ja) * 2001-02-19 2002-08-28 Ngk Spark Plug Co Ltd 超音波伝播時間測定方法及びガス濃度センサ
US7818047B2 (en) * 2001-11-09 2010-10-19 Nova R&D, Inc. X-ray and gamma ray detector readout system
US7024917B2 (en) * 2004-03-16 2006-04-11 Baker Hughes Incorporated Method and apparatus for an acoustic pulse decay density determination
DE102004013249A1 (de) * 2004-03-18 2005-10-06 Robert Bosch Gmbh Bestimmung der Laufzeitdifferenz bei einem Ultraschall-Strömungssensor mit mehrfacher Nulldurchgangsdetektion
DE102004014674A1 (de) * 2004-03-25 2005-10-13 Robert Bosch Gmbh Nulldurchgangsdetektion eines Ultraschallsignals mit variablem Schwellenwert
US7366053B2 (en) * 2005-09-15 2008-04-29 Bbn Technologies, Corp. System and method for imaging and tracking contacts within a medium
US9518958B2 (en) * 2012-12-18 2016-12-13 Deka Products Limited Partnership System, method, and apparatus for detecting air in a fluid line using active rectification
GB201611446D0 (en) * 2016-06-30 2016-08-17 Surface Measurement Systems Ltd Method and apparatus for measurement of vapour sorption, and sensor for use therein
FR3074913B1 (fr) 2017-12-08 2019-11-22 Sagemcom Energy & Telecom Sas Procede de mesure d'une vitesse d'un fluide
FR3097968B1 (fr) * 2019-06-28 2021-06-18 Sagemcom Energy & Telecom Sas Procédé de mesure de la vitesse d’un fluide
CN110401425B (zh) * 2019-07-18 2024-08-23 厦门思力科电子科技有限公司 自动增益调整器及自动增益调整电路
US11359950B2 (en) 2019-12-10 2022-06-14 Johnson Controls Tyco IP Holdings LLP Reduced length valve assembly with ultrasonic flow sensor
CN114787590A (zh) * 2019-12-23 2022-07-22 贝利莫控股公司 用于测量经过通道的气体的流量的系统和方法
CN114353892A (zh) * 2021-12-19 2022-04-15 上海中核维思仪器仪表有限公司 一种智能地改善换能器老化导致计量精度下降的方法

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US3918304A (en) * 1973-11-23 1975-11-11 Westinghouse Electric Corp Flowmeter computer
US4080574A (en) * 1974-01-31 1978-03-21 United Kingdom Atomic Energy Authority Apparatus for providing time reference signals
US3981191A (en) * 1975-07-05 1976-09-21 Danfoss A/S Method and apparatus for the ultrasonic measurement of the flow velocity of fluent media
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JPS53142075A (en) * 1977-05-17 1978-12-11 Tokyo Shibaura Electric Co Ultrasonic diagnosing device
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US4232548A (en) * 1979-03-01 1980-11-11 Joseph Baumoel Liquid flow meter
US4451797A (en) * 1982-02-26 1984-05-29 Amf Inc. AGC Controller for pulsed system

Also Published As

Publication number Publication date
EP0154640A1 (en) 1985-09-18
US4515021A (en) 1985-05-07
IT8422114A0 (it) 1984-07-30
EP0154640A4 (en) 1987-01-20
WO1985000653A1 (en) 1985-02-14
JPS60502171A (ja) 1985-12-12

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