HK1007002A1 - A speed measurement device - Google Patents

A speed measurement device

Info

Publication number
HK1007002A1
HK1007002A1 HK98106173A HK98106173A HK1007002A1 HK 1007002 A1 HK1007002 A1 HK 1007002A1 HK 98106173 A HK98106173 A HK 98106173A HK 98106173 A HK98106173 A HK 98106173A HK 1007002 A1 HK1007002 A1 HK 1007002A1
Authority
HK
Hong Kong
Prior art keywords
measurement device
effected
microprocessor
speed measurement
speed
Prior art date
Application number
HK98106173A
Other languages
English (en)
Inventor
Michael John Gill
Original Assignee
British Gas Plc
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 British Gas Plc filed Critical British Gas Plc
Publication of HK1007002A1 publication Critical patent/HK1007002A1/xx

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
    • G01P5/18—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 time taken to traverse a fixed distance
    • 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
    • G01F1/662—Constructional details
    • 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
HK98106173A 1988-06-09 1998-06-23 A speed measurement device HK1007002A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888813640A GB8813640D0 (en) 1988-06-09 1988-06-09 Speed measurement device

Publications (1)

Publication Number Publication Date
HK1007002A1 true HK1007002A1 (en) 1999-03-26

Family

ID=10638337

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98106173A HK1007002A1 (en) 1988-06-09 1998-06-23 A speed measurement device

Country Status (12)

Country Link
US (1) US5163331A (ja)
EP (1) EP0347096B1 (ja)
JP (2) JP2987156B2 (ja)
KR (1) KR920010025B1 (ja)
AT (1) ATE103075T1 (ja)
AU (1) AU624267B2 (ja)
CA (1) CA1331052C (ja)
DE (1) DE68913819T2 (ja)
DK (1) DK279989A (ja)
ES (1) ES2050232T3 (ja)
GB (2) GB8813640D0 (ja)
HK (1) HK1007002A1 (ja)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237639B (en) * 1989-10-31 1994-07-06 British Gas Plc Measurement system
GB2276242B (en) * 1990-10-02 1995-06-14 British Gas Plc Measurement system
GB9021441D0 (en) * 1990-10-02 1990-11-14 British Gas Plc Measurement system
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
GB9119742D0 (en) * 1991-09-16 1991-10-30 British Gas Plc Measurement system
EP0672238B1 (de) * 1992-02-13 1997-01-15 Siemens Aktiengesellschaft Trichtereinlass und -auslass für ultraschall-gaszähler
DE69417543T2 (de) * 1993-01-30 1999-07-15 Kromschroeder Ag G Flüssigkeitsströmungsmesser
GB9301873D0 (en) * 1993-01-30 1993-03-17 Cambridge Consultants Method and apparatus for fluid flow metering
GB2276240B (en) * 1993-03-16 1997-01-15 British Gas Plc Fluid flowmeter
IT1272370B (it) * 1993-04-27 1997-06-23 Nuovo Pignone Spa Misuratore-regolatore perfezionato della portata di un fluido
GB2282447B (en) * 1993-09-29 1997-02-12 Siemens Measurements Ltd Improvements in or relating to gas meters
DE4341542C2 (de) * 1993-12-07 2003-04-17 Abb Patent Gmbh Durchflussmessvorrichtung
FR2724016B1 (fr) * 1994-08-23 1996-10-25 Schlumberger Ind Sa Dispositif de mesure ultrasonore d'une quantite volumique d'un fluide a proprietes acoustiques ameliorees
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
US5710379A (en) * 1996-10-04 1998-01-20 Dieterich Technology Holding Corp. Apparatus and method for determining a flow count
DE29715089U1 (de) * 1997-08-22 1998-09-17 Siemens Ag Meßumformer
NL1009485C2 (nl) * 1998-06-24 2000-01-11 Wilhelm Henricus Jurriaan Van Akoestische looptijdmeting.
AUPQ480199A0 (en) 1999-12-22 2000-02-03 AGL Consultancy Pty. Limited Timed window ultrasonic gas meter with nose cone
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
DE10240975B4 (de) * 2002-09-02 2007-02-01 Hydrometer Gmbh Meßwertgeber für einen Ultraschall-Durchflussmesser
AU2003902318A0 (en) 2003-05-14 2003-05-29 Vision Fire And Security Pty Ltd Improved Sensing Apparatus And Method
JP2008519964A (ja) * 2004-11-12 2008-06-12 ブイエフエス・テクノロジーズ・リミテッド 流れ決定方法及び装置
JP5111847B2 (ja) * 2006-12-28 2013-01-09 リコーエレメックス株式会社 超音波流量計
US7934432B2 (en) 2007-02-27 2011-05-03 Dräger Medical GmbH Method for measuring the run time of an ultrasonic pulse in the determination of the flow velocity of a gas in a breathing gas volume flow sensor
DE102008054257B4 (de) 2007-11-10 2016-06-30 Drägerwerk AG & Co. KGaA Verfahren zur Bestimmung der Strömungsgeschwindigkeit eines Atemgases
JP2010151583A (ja) * 2008-12-25 2010-07-08 Panasonic Corp 超音波式流れ計測装置
AT509641B1 (de) * 2011-06-24 2012-08-15 Avl List Gmbh Verfahren zur ermittlung des durchflusses von fluiden nach dem ultraschalllaufzeitverfahren
CN103148992B (zh) * 2013-03-11 2015-07-08 南京帝坝工程科技有限公司 三维流速矢量能量与质量测量仪
RU186705U1 (ru) * 2017-10-17 2019-01-30 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Расходомер жидкости

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2077968A1 (ja) * 1970-02-27 1971-11-05 Thomson Csf
US3788140A (en) * 1972-02-25 1974-01-29 Gen Signal Corp Electroacoustical flow metering apparatus
JPS5093385A (ja) * 1973-12-19 1975-07-25
IT1016750B (it) * 1974-08-01 1977-06-20 Fiat Spa Dispositivo per effettuare median te ultrasuoni la misura della por tata d aria in massa nel condotto di aspirazione di motori a combu stione interna
IT1071241B (it) * 1976-07-09 1985-04-02 Fiat Spa Dispositivo per effettuare..mediante ultrasuoni..la misura della portata d aria in massa nel condotto di aspirazione di motori ad iniezione pilotata dal dispositivo stesso
US4140012A (en) * 1977-11-07 1979-02-20 Envirotech Corporation Small pipe flowmeter
CH636701A5 (de) * 1979-06-08 1983-06-15 Landis & Gyr Ag Messwertgeber zur bestimmung der durchflussmenge einer stroemenden fluessigkeit mit ultraschall.
JPS56124028A (en) * 1980-03-05 1981-09-29 Furuno Electric Co Ltd Ultrasonic thermometer
DE3039710C2 (de) * 1980-09-25 1983-01-13 LGZ Landis & Gyr Zug AG, 6301 Zug Meßwertgeber zur Bestimmung der Durchflußmenge einer strömenden Flüssigkeit
GB2099146B (en) * 1981-04-03 1985-07-10 Marconi Co Ltd Phase difference flowmeter
US4452090A (en) * 1982-05-17 1984-06-05 Airco, Inc. Ultrasonic flowmeter
US4480485A (en) * 1982-10-01 1984-11-06 Panametrics, Inc. Acoustic flowmeter with envelope midpoint tracking
JPS60115810A (ja) * 1983-11-28 1985-06-22 Hitachi Ltd 超音波流量計
GB8430217D0 (en) * 1984-11-30 1985-01-09 Redding R J Electronic gas meter
US4630482A (en) * 1985-06-17 1986-12-23 John Traina Method and apparatus for ultrasonic measurements of a medium
DE3671516D1 (de) * 1985-09-30 1990-06-28 Siemens Ag Verfahren zur messung von stroemungsgeschwindigkeiten mit ultraschallschwingungen.
GB2205645A (en) * 1987-06-12 1988-12-14 Milan Herman Miessler Fluid flow measurement
GB2209217A (en) * 1987-08-28 1989-05-04 Gen Electric Co Plc An ultrasonic fluid flow meter
US4787252A (en) * 1987-09-30 1988-11-29 Panametrics, Inc. Differential correlation analyzer

Also Published As

Publication number Publication date
DK279989D0 (da) 1989-06-08
GB8913320D0 (en) 1989-07-26
JP3026803B2 (ja) 2000-03-27
DE68913819T2 (de) 1994-08-11
KR920010025B1 (ko) 1992-11-13
EP0347096B1 (en) 1994-03-16
GB2222254A (en) 1990-02-28
AU603735B2 (en) 1990-11-22
US5163331A (en) 1992-11-17
DK279989A (da) 1989-12-10
GB8813640D0 (en) 1988-07-13
KR910001386A (ko) 1991-01-30
JPH11287817A (ja) 1999-10-19
GB2222254B (en) 1993-02-03
ES2050232T3 (es) 1994-05-16
AU6210390A (en) 1990-11-29
ATE103075T1 (de) 1994-04-15
AU624267B2 (en) 1992-06-04
AU3624589A (en) 1990-01-04
EP0347096A2 (en) 1989-12-20
JP2987156B2 (ja) 1999-12-06
DE68913819D1 (de) 1994-04-21
JPH0285762A (ja) 1990-03-27
CA1331052C (en) 1994-07-26
EP0347096A3 (en) 1991-08-28

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)