HK1058964A1 - Flow meter - Google Patents
Flow meterInfo
- Publication number
- HK1058964A1 HK1058964A1 HK04101707A HK04101707A HK1058964A1 HK 1058964 A1 HK1058964 A1 HK 1058964A1 HK 04101707 A HK04101707 A HK 04101707A HK 04101707 A HK04101707 A HK 04101707A HK 1058964 A1 HK1058964 A1 HK 1058964A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- flow meter
- meter
- flow
- Prior art date
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
-
- 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)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002071156 | 2002-03-15 | ||
JP2002071904 | 2002-03-15 | ||
JP2002255248A JP3585476B2 (ja) | 2002-03-15 | 2002-08-30 | 流量計測装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1058964A1 true HK1058964A1 (en) | 2004-06-11 |
Family
ID=27767774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK04101707A HK1058964A1 (en) | 2002-03-15 | 2004-03-09 | Flow meter |
Country Status (7)
Country | Link |
---|---|
US (1) | US6829948B2 (xx) |
EP (1) | EP1345012B1 (xx) |
JP (1) | JP3585476B2 (xx) |
KR (1) | KR100776111B1 (xx) |
CN (1) | CN1237330C (xx) |
HK (1) | HK1058964A1 (xx) |
TW (1) | TWI258004B (xx) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100519481B1 (ko) * | 2003-05-17 | 2005-10-06 | (주)씨엠엔텍 | 음속측정장치 및 이를 이용한 초음파 유량계에서의지연시간 측정방법 및 유체내 초음파 진동자간 거리측정방법 |
US7117104B2 (en) * | 2004-06-28 | 2006-10-03 | Celerity, Inc. | Ultrasonic liquid flow controller |
DE102005037458B4 (de) * | 2005-08-09 | 2016-06-02 | Robert Bosch Gmbh | Ultraschall-Strömungssensor mit Driftkompensation |
US7360448B2 (en) * | 2005-08-12 | 2008-04-22 | Celerity, Inc. | Ultrasonic flow sensor having reflecting interface |
US7152490B1 (en) * | 2005-08-15 | 2006-12-26 | Daniel Measurement And Control, Inc. | Methods for determining transducer delay time and transducer separation in ultrasonic flow meters |
US7366625B1 (en) * | 2006-10-04 | 2008-04-29 | Cameron International Corporation | Method, apparatus and computer medium for correcting transient flow errors in flowmeter proving data |
US8132469B2 (en) * | 2010-01-06 | 2012-03-13 | Daniel Measurement And Control, Inc. | Ultrasonic flow meter with transducer assembly having a rotatable receptacle and elbow connector |
EP2383550A1 (en) | 2010-04-28 | 2011-11-02 | Miitors ApS | Ultrasonic flow meter |
EP2581715A1 (en) | 2011-10-13 | 2013-04-17 | Miitors ApS | Ultrasonic flow meter |
TWI500908B (zh) * | 2013-06-19 | 2015-09-21 | Ind Tech Res Inst | 超音波流量計及超音波流量測量方法 |
CN104864923A (zh) * | 2014-02-24 | 2015-08-26 | 通用电气公司 | 传送和接收超声信号的电路组件及使用该电路组件的系统和方法 |
CN106871980B (zh) * | 2017-02-13 | 2019-03-26 | 合肥工业大学 | 基于相邻峰值最大差值的气体超声流量计间歇式激励和信号处理方法和系统 |
DE102017006181A1 (de) * | 2017-06-29 | 2019-01-03 | Diehl Metering Gmbh | Messeinrichtung und Verfahren zur Ermittlung einer Fluidgröße |
DE102017006909A1 (de) * | 2017-07-20 | 2019-01-24 | Diehl Metering Gmbh | Messmodul zur Ermittlung einer Fluidgröße |
CN111366204B (zh) * | 2020-02-28 | 2022-03-08 | 龙芯中科(金华)技术有限公司 | 流量测量电路和方法 |
CN115586738A (zh) * | 2022-11-25 | 2023-01-10 | 成都千嘉科技股份有限公司 | 一种超声波流量计的开关电路及其控制方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1602185A (en) * | 1977-06-03 | 1981-11-11 | Standard Telephones Cables Ltd | Measuring fluid flow |
GB2017914B (en) | 1978-03-29 | 1982-08-25 | Flowmetering Instr Ltd | Ultrasonic flowmeters |
DE3633306A1 (de) * | 1986-09-30 | 1988-03-31 | Siemens Ag | Schaltungsanordnung fuer ultraschall-durchflussmesser |
US4788981A (en) * | 1986-10-16 | 1988-12-06 | Olympus Optical Co., Ltd. | Pulse compression apparatus for ultrasonic image processing |
GB2237639B (en) * | 1989-10-31 | 1994-07-06 | British Gas Plc | Measurement system |
GB9301873D0 (en) * | 1993-01-30 | 1993-03-17 | Cambridge Consultants | Method and apparatus for fluid flow metering |
US5394732A (en) * | 1993-09-10 | 1995-03-07 | Cobe Laboratories, Inc. | Method and apparatus for ultrasonic detection of air bubbles |
DE19810798A1 (de) * | 1997-03-14 | 1998-09-24 | Siemens Ag | Schaltungsanordnung zur Steuerung und Auswertung für Ultraschall-Volumenstrommeßgeräte |
-
2002
- 2002-08-30 JP JP2002255248A patent/JP3585476B2/ja not_active Expired - Fee Related
-
2003
- 2003-03-12 CN CNB031200648A patent/CN1237330C/zh not_active Expired - Lifetime
- 2003-03-13 US US10/387,751 patent/US6829948B2/en not_active Expired - Lifetime
- 2003-03-14 EP EP03005819.2A patent/EP1345012B1/en not_active Expired - Lifetime
- 2003-03-14 TW TW092105658A patent/TWI258004B/zh not_active IP Right Cessation
- 2003-03-14 KR KR1020030015959A patent/KR100776111B1/ko not_active IP Right Cessation
-
2004
- 2004-03-09 HK HK04101707A patent/HK1058964A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1345012A2 (en) | 2003-09-17 |
TW200306405A (en) | 2003-11-16 |
EP1345012B1 (en) | 2014-07-02 |
JP2003337055A (ja) | 2003-11-28 |
US6829948B2 (en) | 2004-12-14 |
US20030209083A1 (en) | 2003-11-13 |
KR100776111B1 (ko) | 2007-11-16 |
CN1445515A (zh) | 2003-10-01 |
KR20030074447A (ko) | 2003-09-19 |
CN1237330C (zh) | 2006-01-18 |
JP3585476B2 (ja) | 2004-11-04 |
TWI258004B (en) | 2006-07-11 |
EP1345012A3 (en) | 2005-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE | Patent expired |
Effective date: 20230311 |