FR2414190B1 - - Google Patents
Info
- Publication number
- FR2414190B1 FR2414190B1 FR7800845A FR7800845A FR2414190B1 FR 2414190 B1 FR2414190 B1 FR 2414190B1 FR 7800845 A FR7800845 A FR 7800845A FR 7800845 A FR7800845 A FR 7800845A FR 2414190 B1 FR2414190 B1 FR 2414190B1
- Authority
- FR
- France
- 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.)
- Expired
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
- 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)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7800845A FR2414190A1 (fr) | 1978-01-06 | 1978-01-06 | Appareil de mesure du debit d'un gaz par transmission d'impulsions ultrasonores et mesure de la difference des temps de parcours amont et aval |
| US05/893,738 US4202210A (en) | 1978-01-06 | 1978-04-05 | Ultrasonic flow meter for gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7800845A FR2414190A1 (fr) | 1978-01-06 | 1978-01-06 | Appareil de mesure du debit d'un gaz par transmission d'impulsions ultrasonores et mesure de la difference des temps de parcours amont et aval |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2414190A1 FR2414190A1 (fr) | 1979-08-03 |
| FR2414190B1 true FR2414190B1 (US08197722-20120612-C00093.png) | 1983-01-28 |
Family
ID=9203387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7800845A Granted FR2414190A1 (fr) | 1978-01-06 | 1978-01-06 | Appareil de mesure du debit d'un gaz par transmission d'impulsions ultrasonores et mesure de la difference des temps de parcours amont et aval |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4202210A (US08197722-20120612-C00093.png) |
| FR (1) | FR2414190A1 (US08197722-20120612-C00093.png) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3025788C2 (de) * | 1980-07-08 | 1985-07-04 | Danfoss A/S, Nordborg | Ultraschall-Meßgerät |
| US4397193A (en) * | 1981-04-07 | 1983-08-09 | Fischer & Porter Company | Transducer drive circuit for ultrasonic flowmeter |
| US4442719A (en) * | 1982-01-11 | 1984-04-17 | Allen Ollie J | Acoustic flowmeter |
| US4630482A (en) * | 1985-06-17 | 1986-12-23 | John Traina | Method and apparatus for ultrasonic measurements of a medium |
| US4782697A (en) * | 1986-07-31 | 1988-11-08 | Williams 3Rd Albert J | Acoustic current meter |
| US5511424A (en) * | 1994-02-15 | 1996-04-30 | The Babcock & Wilcox Company | Remote preamplifier and impedance matching circuit for electromagnetic acoustic transducer |
| DE102007029957A1 (de) * | 2007-06-28 | 2009-01-02 | Robert Bosch Gmbh | Ultraschallsensor mit reziproker Sende- und Empfangsschaltung |
| US7911306B2 (en) * | 2008-01-08 | 2011-03-22 | Daniel Measurement And Control, Inc. | Transformer board |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3727458A (en) * | 1969-12-12 | 1973-04-17 | British Coal Utilisation Res A | Measurement of rates of flow of gases |
| DE2517117A1 (de) * | 1975-04-18 | 1976-10-28 | Standard Elektrik Lorenz Ag | Anordnung zum bestimmen der stroemungsgeschwindigkeit von fluessigkeiten und gasen |
| US4052896A (en) * | 1975-11-26 | 1977-10-11 | Badger Meter, Inc. | Ultrasonic flow meter |
| US3982435A (en) * | 1975-12-18 | 1976-09-28 | General Motors Corporation | Air mass flow measuring apparatus |
| US4028938A (en) * | 1976-01-26 | 1977-06-14 | Ocean Research Equipment, Inc. | Acoustical flow meter |
-
1978
- 1978-01-06 FR FR7800845A patent/FR2414190A1/fr active Granted
- 1978-04-05 US US05/893,738 patent/US4202210A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2414190A1 (fr) | 1979-08-03 |
| US4202210A (en) | 1980-05-13 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |