FR2665814B1 - Transducteur electroacoustique destine a etre immerge et comportant un systeme de compensation automatique de la pression d'immersion. - Google Patents
Transducteur electroacoustique destine a etre immerge et comportant un systeme de compensation automatique de la pression d'immersion.Info
- Publication number
- FR2665814B1 FR2665814B1 FR9010249A FR9010249A FR2665814B1 FR 2665814 B1 FR2665814 B1 FR 2665814B1 FR 9010249 A FR9010249 A FR 9010249A FR 9010249 A FR9010249 A FR 9010249A FR 2665814 B1 FR2665814 B1 FR 2665814B1
- Authority
- FR
- France
- Prior art keywords
- underwater
- electroacoustic transducer
- automatic compensating
- immersion pressure
- transducer intended
- 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.)
- Expired - Fee Related
Links
- 238000007654 immersion Methods 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
- B06B1/0618—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9010249A FR2665814B1 (fr) | 1990-08-10 | 1990-08-10 | Transducteur electroacoustique destine a etre immerge et comportant un systeme de compensation automatique de la pression d'immersion. |
EP19910402172 EP0473480B1 (fr) | 1990-08-10 | 1991-08-02 | Transducteur électroacoustique destiné à être immergé et comportant un système de compensation automatique de la pression d'immersion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9010249A FR2665814B1 (fr) | 1990-08-10 | 1990-08-10 | Transducteur electroacoustique destine a etre immerge et comportant un systeme de compensation automatique de la pression d'immersion. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2665814A1 FR2665814A1 (fr) | 1992-02-14 |
FR2665814B1 true FR2665814B1 (fr) | 1993-06-11 |
Family
ID=9399607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9010249A Expired - Fee Related FR2665814B1 (fr) | 1990-08-10 | 1990-08-10 | Transducteur electroacoustique destine a etre immerge et comportant un systeme de compensation automatique de la pression d'immersion. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0473480B1 (fr) |
FR (1) | FR2665814B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2697711B1 (fr) * | 1992-11-05 | 1994-12-30 | France Etat Armement | Procédé et transducteur pour émettre des ondes acoustiques basse fréquence dans un liquide en immersion illimitée. |
FR2713430B1 (fr) * | 1993-12-03 | 1996-03-08 | France Etat Armement | Procédé d'émission d'ondes acoustiques très basses fréquences à forte puissance, et transducteurs correspondants. |
FR2720589B1 (fr) * | 1994-05-27 | 1996-07-05 | France Etat Armement | Procédé et transducteur pour émettre des ondes acoustiques à larges bandes et basses fréquences en profondeur d'immersion illimitée. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3539980A (en) * | 1968-11-29 | 1970-11-10 | Dynamics Corp America | Underwater electroacoustic transducer which resists intense pressure |
FR2290813A1 (fr) * | 1974-11-08 | 1976-06-04 | Thomson Csf | Transducteur electroacoustique resistant aux pressions elevees |
FR2496379A1 (fr) * | 1980-12-16 | 1982-06-18 | Tech Radioelect Electro Fs | Transducteur electroacoustique de puissance pour immersion profonde |
-
1990
- 1990-08-10 FR FR9010249A patent/FR2665814B1/fr not_active Expired - Fee Related
-
1991
- 1991-08-02 EP EP19910402172 patent/EP0473480B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2665814A1 (fr) | 1992-02-14 |
EP0473480A1 (fr) | 1992-03-04 |
EP0473480B1 (fr) | 1994-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licenses | ||
CD | Change of name or company name | ||
ST | Notification of lapse |