FR2720587B1 - Perfectionnement aux antennes sonar munies d'une contre masse commune. - Google Patents
Perfectionnement aux antennes sonar munies d'une contre masse commune.Info
- Publication number
- FR2720587B1 FR2720587B1 FR9406408A FR9406408A FR2720587B1 FR 2720587 B1 FR2720587 B1 FR 2720587B1 FR 9406408 A FR9406408 A FR 9406408A FR 9406408 A FR9406408 A FR 9406408A FR 2720587 B1 FR2720587 B1 FR 2720587B1
- Authority
- FR
- France
- Prior art keywords
- improvement
- antennas provided
- common counterweight
- sonar antennas
- sonar
- 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
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)
- Details Of Aerials (AREA)
- Transducers For Ultrasonic Waves (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9406408A FR2720587B1 (fr) | 1994-05-26 | 1994-05-26 | Perfectionnement aux antennes sonar munies d'une contre masse commune. |
EP95401230A EP0684085A1 (fr) | 1994-05-26 | 1995-05-26 | Antenne sonar ouverte comportant des transducteurs électro-acoustiques |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9406408A FR2720587B1 (fr) | 1994-05-26 | 1994-05-26 | Perfectionnement aux antennes sonar munies d'une contre masse commune. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2720587A1 FR2720587A1 (fr) | 1995-12-01 |
FR2720587B1 true FR2720587B1 (fr) | 1996-07-05 |
Family
ID=9463543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9406408A Expired - Fee Related FR2720587B1 (fr) | 1994-05-26 | 1994-05-26 | Perfectionnement aux antennes sonar munies d'une contre masse commune. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2720587B1 (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190921394A (en) * | 1909-09-18 | 1910-09-19 | Evershed Vignoles Ltd | Improvements in and relating to the Production of Sound Waves by Means of Forced Vibrations. |
FR2361033A1 (fr) * | 1976-08-03 | 1978-03-03 | France Etat | Transducteurs piezoelectriques et antennes acoustiques immergeables a grande profondeur |
FR2570916B1 (fr) * | 1983-06-23 | 1988-04-15 | France Etat Armement | Procede et transducteur electro-acoustique pour emettre ou recevoir des ondes acoustiques dans plusieurs bandes passantes |
FR2697709B1 (fr) * | 1992-11-05 | 1994-12-30 | France Etat Armement | Dispositif d'étanchéité de moteurs électro-acoustiques. |
-
1994
- 1994-05-26 FR FR9406408A patent/FR2720587B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2720587A1 (fr) | 1995-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20110131 |