FR2377637B1 - - Google Patents
Info
- Publication number
- FR2377637B1 FR2377637B1 FR7700694A FR7700694A FR2377637B1 FR 2377637 B1 FR2377637 B1 FR 2377637B1 FR 7700694 A FR7700694 A FR 7700694A FR 7700694 A FR7700694 A FR 7700694A FR 2377637 B1 FR2377637 B1 FR 2377637B1
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/04—Systems determining presence of a target
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- Geophysics And Detection Of Objects (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7700694A FR2377637A1 (fr) | 1977-01-12 | 1977-01-12 | Procede et dispositif utilisant les ultrasons pour detecter le passage d'un objet a l'interieur d'une canalisation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7700694A FR2377637A1 (fr) | 1977-01-12 | 1977-01-12 | Procede et dispositif utilisant les ultrasons pour detecter le passage d'un objet a l'interieur d'une canalisation |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2377637A1 FR2377637A1 (fr) | 1978-08-11 |
FR2377637B1 true FR2377637B1 (fr) | 1980-04-04 |
Family
ID=9185384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7700694A Granted FR2377637A1 (fr) | 1977-01-12 | 1977-01-12 | Procede et dispositif utilisant les ultrasons pour detecter le passage d'un objet a l'interieur d'une canalisation |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2377637A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1175163B (it) * | 1983-10-21 | 1987-07-01 | Autotecnica Sas | Dispositivo atto a rilevare variazioni dello stato di quiete o di moto rettilineo uniforme di un corpo |
FR2642848A1 (fr) * | 1989-02-08 | 1990-08-10 | Schlumberger Cie Dowell | Procede ultrasonore pour la detection du passage d'un corps dans un tube metallique et ses utilisations, notamment dans l'industrie petroliere |
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1977
- 1977-01-12 FR FR7700694A patent/FR2377637A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2377637A1 (fr) | 1978-08-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |