HK1007002A1 - A speed measurement device - Google Patents
A speed measurement deviceInfo
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Measuring Volume Flow (AREA)
- Paper (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Photoreceptors In Electrophotography (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Soil Working Implements (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
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 (de) |
EP (1) | EP0347096B1 (de) |
JP (2) | JP2987156B2 (de) |
KR (1) | KR920010025B1 (de) |
AT (1) | ATE103075T1 (de) |
AU (1) | AU624267B2 (de) |
CA (1) | CA1331052C (de) |
DE (1) | DE68913819T2 (de) |
DK (1) | DK279989A (de) |
ES (1) | ES2050232T3 (de) |
GB (2) | GB8813640D0 (de) |
HK (1) | HK1007002A1 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2237639B (en) * | 1989-10-31 | 1994-07-06 | British Gas Plc | Measurement system |
GB9021441D0 (en) * | 1990-10-02 | 1990-11-14 | British Gas Plc | Measurement system |
GB2276242B (en) * | 1990-10-02 | 1995-06-14 | 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 |
DE59305186D1 (de) * | 1992-02-13 | 1997-02-27 | Siemens Ag | Trichtereinlass und -auslass für ultraschall-gaszähler |
ES2131672T3 (es) * | 1993-01-30 | 1999-08-01 | Kromschroeder Ag G | Medidor de flujo para fluido. |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2077968A1 (de) * | 1970-02-27 | 1971-11-05 | Thomson Csf | |
US3788140A (en) * | 1972-02-25 | 1974-01-29 | Gen Signal Corp | Electroacoustical flow metering apparatus |
JPS5093385A (de) * | 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 |
-
1988
- 1988-06-09 GB GB888813640A patent/GB8813640D0/en active Pending
-
1989
- 1989-06-07 DE DE68913819T patent/DE68913819T2/de not_active Expired - Lifetime
- 1989-06-07 EP EP89305741A patent/EP0347096B1/de not_active Expired - Lifetime
- 1989-06-07 ES ES89305741T patent/ES2050232T3/es not_active Expired - Lifetime
- 1989-06-07 AT AT89305741T patent/ATE103075T1/de not_active IP Right Cessation
- 1989-06-08 DK DK279989A patent/DK279989A/da not_active Application Discontinuation
- 1989-06-09 CA CA000602306A patent/CA1331052C/en not_active Expired - Fee Related
- 1989-06-09 GB GB8913320A patent/GB2222254B/en not_active Revoked
- 1989-06-09 US US07/363,994 patent/US5163331A/en not_active Expired - Lifetime
- 1989-06-09 JP JP1148202A patent/JP2987156B2/ja not_active Expired - Fee Related
- 1989-06-09 KR KR1019890008060A patent/KR920010025B1/ko not_active IP Right Cessation
-
1990
- 1990-09-03 AU AU62103/90A patent/AU624267B2/en not_active Ceased
-
1998
- 1998-06-23 HK HK98106173A patent/HK1007002A1/xx not_active IP Right Cessation
-
1999
- 1999-03-10 JP JP11063955A patent/JP3026803B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE103075T1 (de) | 1994-04-15 |
GB2222254B (en) | 1993-02-03 |
DK279989A (da) | 1989-12-10 |
AU603735B2 (en) | 1990-11-22 |
GB2222254A (en) | 1990-02-28 |
DK279989D0 (da) | 1989-06-08 |
DE68913819D1 (de) | 1994-04-21 |
KR920010025B1 (ko) | 1992-11-13 |
JPH11287817A (ja) | 1999-10-19 |
EP0347096B1 (de) | 1994-03-16 |
JP2987156B2 (ja) | 1999-12-06 |
AU6210390A (en) | 1990-11-29 |
AU3624589A (en) | 1990-01-04 |
ES2050232T3 (es) | 1994-05-16 |
AU624267B2 (en) | 1992-06-04 |
DE68913819T2 (de) | 1994-08-11 |
CA1331052C (en) | 1994-07-26 |
GB8813640D0 (en) | 1988-07-13 |
JPH0285762A (ja) | 1990-03-27 |
EP0347096A2 (de) | 1989-12-20 |
JP3026803B2 (ja) | 2000-03-27 |
US5163331A (en) | 1992-11-17 |
GB8913320D0 (en) | 1989-07-26 |
EP0347096A3 (de) | 1991-08-28 |
KR910001386A (ko) | 1991-01-30 |
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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) |