FR2731130B1 - METHOD AND TRANSDUCERS FOR TRANSMITTING ACOUSTIC WAVES IN A LIQUID WITH LOW FREQUENCY DIRECTIVITY - Google Patents

METHOD AND TRANSDUCERS FOR TRANSMITTING ACOUSTIC WAVES IN A LIQUID WITH LOW FREQUENCY DIRECTIVITY

Info

Publication number
FR2731130B1
FR2731130B1 FR9502094A FR9502094A FR2731130B1 FR 2731130 B1 FR2731130 B1 FR 2731130B1 FR 9502094 A FR9502094 A FR 9502094A FR 9502094 A FR9502094 A FR 9502094A FR 2731130 B1 FR2731130 B1 FR 2731130B1
Authority
FR
France
Prior art keywords
transducers
liquid
low frequency
acoustic waves
transmitting acoustic
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
Application number
FR9502094A
Other languages
French (fr)
Other versions
FR2731130A1 (en
Inventor
Gall Yves Le
Yves Ripoll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Direction General pour lArmement DGA
Etat Francais
Original Assignee
Direction General pour lArmement DGA
Etat Francais
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Direction General pour lArmement DGA, Etat Francais filed Critical Direction General pour lArmement DGA
Priority to FR9502094A priority Critical patent/FR2731130B1/en
Priority to CA 2170089 priority patent/CA2170089A1/en
Priority to EP19960400362 priority patent/EP0728533B1/en
Priority to DE1996600548 priority patent/DE69600548T2/en
Publication of FR2731130A1 publication Critical patent/FR2731130A1/en
Application granted granted Critical
Publication of FR2731130B1 publication Critical patent/FR2731130B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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'
FR9502094A 1995-02-23 1995-02-23 METHOD AND TRANSDUCERS FOR TRANSMITTING ACOUSTIC WAVES IN A LIQUID WITH LOW FREQUENCY DIRECTIVITY Expired - Fee Related FR2731130B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9502094A FR2731130B1 (en) 1995-02-23 1995-02-23 METHOD AND TRANSDUCERS FOR TRANSMITTING ACOUSTIC WAVES IN A LIQUID WITH LOW FREQUENCY DIRECTIVITY
CA 2170089 CA2170089A1 (en) 1995-02-23 1996-02-22 Process and transducers for emitting in a liquid acoustic waves with a directional radiation pattern
EP19960400362 EP0728533B1 (en) 1995-02-23 1996-02-22 Process and transducers for emitting acoustic waves in a liquid with a pronounced directivity at low frequencies
DE1996600548 DE69600548T2 (en) 1995-02-23 1996-02-22 Method and converter for emitting acoustic waves in a liquid with an emphasized directional characteristic at low frequencies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9502094A FR2731130B1 (en) 1995-02-23 1995-02-23 METHOD AND TRANSDUCERS FOR TRANSMITTING ACOUSTIC WAVES IN A LIQUID WITH LOW FREQUENCY DIRECTIVITY

Publications (2)

Publication Number Publication Date
FR2731130A1 FR2731130A1 (en) 1996-08-30
FR2731130B1 true FR2731130B1 (en) 1997-04-11

Family

ID=9476435

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9502094A Expired - Fee Related FR2731130B1 (en) 1995-02-23 1995-02-23 METHOD AND TRANSDUCERS FOR TRANSMITTING ACOUSTIC WAVES IN A LIQUID WITH LOW FREQUENCY DIRECTIVITY

Country Status (4)

Country Link
EP (1) EP0728533B1 (en)
CA (1) CA2170089A1 (en)
DE (1) DE69600548T2 (en)
FR (1) FR2731130B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2818754B1 (en) * 2000-12-21 2004-06-18 Inst Francais Du Petrole DEVICE FOR GENERATING FOCUSED ELASTIC WAVES IN A MATERIAL MEDIUM SUCH AS THE BASEMENT, AND METHOD FOR ITS IMPLEMENTATION

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2390847A (en) * 1941-08-13 1945-12-11 Rca Corp Signal translating apparatus
DE3620085C2 (en) * 1986-06-14 1994-03-10 Honeywell Elac Nautik Gmbh Tubular electro-acoustic transducer
FR2665998B1 (en) * 1988-05-05 1993-10-29 Etat Francais Delegue Armement ELECTRO-ACOUSTIC TRANSDUCERS AND METHODS FOR TRANSMITTING LOW FREQUENCY ACOUSTIC WAVES INTO A LIQUID.
FR2663182B1 (en) * 1990-06-12 1992-09-18 Grosso Gilles UNDERWATER ELECTRO-ACOUSTIC TRANSDUCER.
FR2674717B1 (en) * 1991-03-29 1993-05-14 Thomson Csf DIRECTIONAL LOW FREQUENCY ACOUSTIC ANTENNA.

Also Published As

Publication number Publication date
DE69600548D1 (en) 1998-10-01
EP0728533A1 (en) 1996-08-28
DE69600548T2 (en) 1999-02-11
FR2731130A1 (en) 1996-08-30
EP0728533B1 (en) 1998-08-26
CA2170089A1 (en) 1996-08-24

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Legal Events

Date Code Title Description
ST Notification of lapse
RN Application for restoration
FC Favourable decision of inpi director general on an application for restauration.
RN Application for restoration
ST Notification of lapse