FR2450456A1 - Velocimetre a onde acoustique - Google Patents
Velocimetre a onde acoustiqueInfo
- Publication number
- FR2450456A1 FR2450456A1 FR7905824A FR7905824A FR2450456A1 FR 2450456 A1 FR2450456 A1 FR 2450456A1 FR 7905824 A FR7905824 A FR 7905824A FR 7905824 A FR7905824 A FR 7905824A FR 2450456 A1 FR2450456 A1 FR 2450456A1
- Authority
- FR
- France
- Prior art keywords
- transducers
- locked loop
- phase locked
- fluid flow
- velocity meter
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title abstract 3
- 238000012937 correction Methods 0.000 abstract 1
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
- G01P5/247—Sing-around-systems
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7905824A FR2450456A1 (fr) | 1979-02-28 | 1979-02-28 | Velocimetre a onde acoustique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7905824A FR2450456A1 (fr) | 1979-02-28 | 1979-02-28 | Velocimetre a onde acoustique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2450456A1 true FR2450456A1 (fr) | 1980-09-26 |
FR2450456B1 FR2450456B1 (OSRAM) | 1983-03-25 |
Family
ID=9222840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7905824A Granted FR2450456A1 (fr) | 1979-02-28 | 1979-02-28 | Velocimetre a onde acoustique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2450456A1 (OSRAM) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803032A1 (fr) * | 1999-12-28 | 2001-06-29 | Gaz De France | Procede et dispositif de mesure d'un debit de fluide circulant dans une canalisation |
CN110542460A (zh) * | 2019-09-03 | 2019-12-06 | 西安安森智能仪器股份有限公司 | 一种多声道超声波流量计换能器驱动电路及其控制方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3420102A (en) * | 1966-12-15 | 1969-01-07 | Lockheed Aircraft Corp | Acoustic fluid metering device |
US3751979A (en) * | 1971-11-17 | 1973-08-14 | Raytheon Co | Speed measurement system |
US3914998A (en) * | 1974-01-03 | 1975-10-28 | Westinghouse Electric Corp | Ultrasonic flowmeter system with alternating two-way transmission |
US4003256A (en) * | 1975-11-17 | 1977-01-18 | Canadian Patents And Development Limited | Acoustic oscillator fluid velocity measuring device |
-
1979
- 1979-02-28 FR FR7905824A patent/FR2450456A1/fr active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3420102A (en) * | 1966-12-15 | 1969-01-07 | Lockheed Aircraft Corp | Acoustic fluid metering device |
US3751979A (en) * | 1971-11-17 | 1973-08-14 | Raytheon Co | Speed measurement system |
US3914998A (en) * | 1974-01-03 | 1975-10-28 | Westinghouse Electric Corp | Ultrasonic flowmeter system with alternating two-way transmission |
US4003256A (en) * | 1975-11-17 | 1977-01-18 | Canadian Patents And Development Limited | Acoustic oscillator fluid velocity measuring device |
Non-Patent Citations (1)
Title |
---|
EXBK/74 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2803032A1 (fr) * | 1999-12-28 | 2001-06-29 | Gaz De France | Procede et dispositif de mesure d'un debit de fluide circulant dans une canalisation |
EP1113247A1 (fr) * | 1999-12-28 | 2001-07-04 | Gaz De France | Procédé et dispositif de mesure d'un débit de fluide circulant dans une canalisation |
CN110542460A (zh) * | 2019-09-03 | 2019-12-06 | 西安安森智能仪器股份有限公司 | 一种多声道超声波流量计换能器驱动电路及其控制方法 |
Also Published As
Publication number | Publication date |
---|---|
FR2450456B1 (OSRAM) | 1983-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |