DK1157258T3 - Metode og apparat til måling af udbredelsestiden for et signal, især et ultralydssignal - Google Patents
Metode og apparat til måling af udbredelsestiden for et signal, især et ultralydssignalInfo
- Publication number
- DK1157258T3 DK1157258T3 DK00907735T DK00907735T DK1157258T3 DK 1157258 T3 DK1157258 T3 DK 1157258T3 DK 00907735 T DK00907735 T DK 00907735T DK 00907735 T DK00907735 T DK 00907735T DK 1157258 T3 DK1157258 T3 DK 1157258T3
- Authority
- DK
- Denmark
- Prior art keywords
- signal
- propagation time
- receive signal
- tint
- measurement
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H5/00—Measuring propagation velocity of ultrasonic, sonic or infrasonic waves, e.g. of pressure waves
-
- 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)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9902672A FR2790554B1 (fr) | 1999-03-03 | 1999-03-03 | Methode et dispositif de mesure du temps de propagation d'un signal, en particulier d'un signal ultrasonore |
PCT/FR2000/000484 WO2000052431A1 (fr) | 1999-03-03 | 2000-02-25 | Methode et dispositif de mesure du temps de propagation d'un signal, en particulier d'un signal ultrasonore |
Publications (1)
Publication Number | Publication Date |
---|---|
DK1157258T3 true DK1157258T3 (da) | 2003-12-08 |
Family
ID=9542802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK00907735T DK1157258T3 (da) | 1999-03-03 | 2000-02-25 | Metode og apparat til måling af udbredelsestiden for et signal, især et ultralydssignal |
Country Status (12)
Country | Link |
---|---|
US (1) | US6842716B1 (zh) |
EP (1) | EP1157258B1 (zh) |
JP (1) | JP2002538453A (zh) |
CN (1) | CN1342262A (zh) |
AT (1) | ATE247276T1 (zh) |
AU (1) | AU2922000A (zh) |
BR (1) | BR0008284A (zh) |
DE (1) | DE60004490T2 (zh) |
DK (1) | DK1157258T3 (zh) |
FR (1) | FR2790554B1 (zh) |
RU (1) | RU2243513C2 (zh) |
WO (1) | WO2000052431A1 (zh) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7838296B2 (en) * | 2002-08-28 | 2010-11-23 | Separation Technology, Inc. | Methods and apparatus for ultrasonic determination of red blood cell indices |
EP1657531A4 (en) * | 2004-06-01 | 2009-08-12 | Avance Techne Accent Corp | FLUID FLOW MEASURING METHOD AND FLOW RATE MEASURING DEVICE |
CN100390510C (zh) * | 2005-05-16 | 2008-05-28 | 中国科学院力学研究所 | 一种超声速流场中有源声波检测方法 |
CN1987762B (zh) * | 2005-12-23 | 2011-01-12 | 深圳市朗科科技股份有限公司 | 用超声波确定手写轨迹的输入方法及装置 |
WO2009028591A1 (ja) * | 2007-08-30 | 2009-03-05 | Nec Corporation | 超音波伝播時間測定システム |
WO2010098346A1 (ja) * | 2009-02-25 | 2010-09-02 | 日本電気株式会社 | 超音波伝播時間測定システム |
RU2410647C1 (ru) * | 2009-06-01 | 2011-01-27 | Общество С Ограниченной Ответственностью "Научно-Производственное Предприятие "Уралтехнология" | Способ измерения расхода жидких сред и ультразвуковой расходомер (варианты) |
WO2011043362A1 (ja) * | 2009-10-07 | 2011-04-14 | 日本電気株式会社 | 超音波送信装置、超音波伝播時間測定システムおよび超音波伝播時間測定方法 |
CN101813515B (zh) * | 2010-04-30 | 2012-06-27 | 重庆理工大学 | 一种精密测量超声波传输时间的方法及装置 |
EP3115755B1 (en) * | 2015-07-06 | 2022-02-16 | ABB Schweiz AG | System and method for measuring a speed of sound in a liquid or gaseous medium |
JP7012497B2 (ja) * | 2017-10-04 | 2022-01-28 | 上田日本無線株式会社 | 伝搬時間測定装置、気体濃度測定装置および伝搬時間測定プログラム |
CN110987099B (zh) * | 2019-11-15 | 2021-08-10 | 深圳市汇顶科技股份有限公司 | 流速侦测电路以及相关芯片以及流量计 |
EP4043838A4 (en) | 2019-11-15 | 2022-11-02 | Shenzhen Goodix Technology Co., Ltd. | FLOW VELOCITY MEASUREMENT CIRCUIT, ASSOCIATED CHIP, AND FLOW METER |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD290947A5 (de) * | 1989-12-27 | 1991-06-13 | Brennstoffinstitut Freiberg,De | Schaltungsanordnung zur bestimmung des einsatzpunktes eines ultraschall-empfangssignales |
DE59008200D1 (de) * | 1990-04-20 | 1995-02-16 | Siemens Ag | Elektrische Messeinrichtung für die Laufzeitmessung eines elektrischen Signals. |
US5777238A (en) * | 1996-06-12 | 1998-07-07 | Welch Allyn, Inc. | Driver-receiver apparatus for use with ultrasonic flowmeters |
FR2750495B1 (fr) * | 1996-07-01 | 1998-08-21 | Schlumberger Ind Sa | Procede et dispositif de mesure d'un debit de fluide en ecoulement |
FR2787880B1 (fr) * | 1998-12-29 | 2001-03-02 | Schlumberger Ind Sa | Dispositif et procede de mesure ultrasonore de debit de fluide comportant un convertisseur analogique numerique sigma-delta passe bande |
-
1999
- 1999-03-03 FR FR9902672A patent/FR2790554B1/fr not_active Expired - Fee Related
-
2000
- 2000-02-25 US US09/914,512 patent/US6842716B1/en not_active Expired - Fee Related
- 2000-02-25 BR BR0008284-8A patent/BR0008284A/pt not_active IP Right Cessation
- 2000-02-25 RU RU2001126568/28A patent/RU2243513C2/ru not_active IP Right Cessation
- 2000-02-25 EP EP00907735A patent/EP1157258B1/fr not_active Expired - Lifetime
- 2000-02-25 DK DK00907735T patent/DK1157258T3/da active
- 2000-02-25 AU AU29220/00A patent/AU2922000A/en not_active Abandoned
- 2000-02-25 CN CN00804490A patent/CN1342262A/zh active Pending
- 2000-02-25 AT AT00907735T patent/ATE247276T1/de not_active IP Right Cessation
- 2000-02-25 WO PCT/FR2000/000484 patent/WO2000052431A1/fr active IP Right Grant
- 2000-02-25 JP JP2000602598A patent/JP2002538453A/ja active Pending
- 2000-02-25 DE DE60004490T patent/DE60004490T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU2922000A (en) | 2000-09-21 |
EP1157258B1 (fr) | 2003-08-13 |
CN1342262A (zh) | 2002-03-27 |
FR2790554A1 (fr) | 2000-09-08 |
BR0008284A (pt) | 2002-01-15 |
EP1157258A1 (fr) | 2001-11-28 |
ATE247276T1 (de) | 2003-08-15 |
FR2790554B1 (fr) | 2001-06-29 |
RU2243513C2 (ru) | 2004-12-27 |
JP2002538453A (ja) | 2002-11-12 |
DE60004490T2 (de) | 2004-04-08 |
US6842716B1 (en) | 2005-01-11 |
DE60004490D1 (de) | 2003-09-18 |
WO2000052431A1 (fr) | 2000-09-08 |
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