FR2639786B1 - Transducteur flextenseur - Google Patents

Transducteur flextenseur

Info

Publication number
FR2639786B1
FR2639786B1 FR8814416A FR8814416A FR2639786B1 FR 2639786 B1 FR2639786 B1 FR 2639786B1 FR 8814416 A FR8814416 A FR 8814416A FR 8814416 A FR8814416 A FR 8814416A FR 2639786 B1 FR2639786 B1 FR 2639786B1
Authority
FR
France
Prior art keywords
flextening
transducer
flextening transducer
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 - Lifetime
Application number
FR8814416A
Other languages
English (en)
Other versions
FR2639786A1 (fr
Inventor
Bernard Tocquet
Michel Letiche Thomson-Cs Scpi
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8814416A priority Critical patent/FR2639786B1/fr
Priority to US07/430,574 priority patent/US4970706A/en
Priority to EP89403032A priority patent/EP0367681A1/fr
Priority to EP19930117557 priority patent/EP0583805A1/fr
Publication of FR2639786A1 publication Critical patent/FR2639786A1/fr
Application granted granted Critical
Publication of FR2639786B1 publication Critical patent/FR2639786B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/121—Flextensional transducers
    • 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'
FR8814416A 1988-11-04 1988-11-04 Transducteur flextenseur Expired - Lifetime FR2639786B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8814416A FR2639786B1 (fr) 1988-11-04 1988-11-04 Transducteur flextenseur
US07/430,574 US4970706A (en) 1988-11-04 1989-11-01 Flextensor transducer
EP89403032A EP0367681A1 (fr) 1988-11-04 1989-11-03 Transducteur flextenseur
EP19930117557 EP0583805A1 (fr) 1988-11-04 1989-11-03 Transducteur flextenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8814416A FR2639786B1 (fr) 1988-11-04 1988-11-04 Transducteur flextenseur

Publications (2)

Publication Number Publication Date
FR2639786A1 FR2639786A1 (fr) 1990-06-01
FR2639786B1 true FR2639786B1 (fr) 1991-07-26

Family

ID=9371579

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8814416A Expired - Lifetime FR2639786B1 (fr) 1988-11-04 1988-11-04 Transducteur flextenseur

Country Status (3)

Country Link
US (1) US4970706A (fr)
EP (2) EP0583805A1 (fr)
FR (1) FR2639786B1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2688972B1 (fr) * 1988-04-28 1996-10-11 France Etat Armement Transducteurs electro-acoustiques comportant une coque emettrice flexible et etanche.
US5497357A (en) * 1988-12-23 1996-03-05 Alliedsignal Inc. Shock-resistant flextensional transducer
GB9010372D0 (en) * 1990-05-09 1990-06-27 Secr Defence Flextensional transducer
US5042611A (en) * 1990-05-18 1991-08-27 Texaco Inc. Method and apparatus for cross-well seismic surveying
FR2663182B1 (fr) * 1990-06-12 1992-09-18 Grosso Gilles Transducteur electro-acoustique immerge.
FR2663805B1 (fr) * 1990-06-26 1992-09-11 Thomson Csf Procede de fabrication d'un element magnetostrictif pour la realisation de transducteurs electro-acoustique et transducteuur electro-acoustique realise a l'aide de tels elements.
FR2672179B1 (fr) * 1991-01-25 1993-04-16 Thomson Csf Transducteur acoustique flextenseur pour immersion profonde.
US5155709A (en) * 1991-07-10 1992-10-13 Raytheon Company Electro-acoustic transducers
AU692960B2 (en) * 1994-12-23 1998-06-18 Marschall Acoustics Pty Ltd Hydrophone
US5926439A (en) * 1998-12-21 1999-07-20 The United States Of America As Represented By The Secretary Of The Navy Flextensional dual-section push-pull underwater projector
US5949741A (en) * 1998-12-21 1999-09-07 The United States Of America As Represented By The Secretary Of The Navy Dual-section push-pull underwater projector
US6076630A (en) * 1999-02-04 2000-06-20 Western Atlas International, Inc. Acoustic energy system for marine operations
FR2809580B1 (fr) 2000-05-26 2002-08-30 Thomson Marconi Sonar Sas Transducteur electrodynamique pour acoustique sous-marine
WO2007145731A2 (fr) 2006-06-07 2007-12-21 Exxonmobil Upstream Research Company Objets compressibles destinés à être combinés à un fluide de forage pour former une boue de forage à densité variable
WO2007145734A2 (fr) 2006-06-07 2007-12-21 Exxonmobil Upstream Research Company Objets compressibles à garniture partielle en mousse combinés à un fluide de forage pour former une boue de forage à densité variable
US8088716B2 (en) 2004-06-17 2012-01-03 Exxonmobil Upstream Research Company Compressible objects having a predetermined internal pressure combined with a drilling fluid to form a variable density drilling mud
CN100570708C (zh) * 2006-03-17 2009-12-16 中国科学院声学研究所 一种超低频水声换能器
EP2035651A4 (fr) 2006-06-07 2009-08-05 Exxonmobil Upstream Res Co Procédé de fabrication d'objets compressibles pour boue de forage à densité variable
FR3026569B1 (fr) * 2014-09-26 2017-12-08 Thales Sa Antenne omnidirectionnelle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR817640A (fr) * 1936-05-14 1937-09-07 J Carpentier Atel Microphone sous-marin spécial pour mouillage à grande profondeur, isolé ou en groupements directifs
US3274538A (en) * 1960-09-19 1966-09-20 Benjamin L Snavely Electroacoustic transducer
US3328751A (en) * 1966-03-28 1967-06-27 Dynamics Corp Massa Div Electroacoustic transducer
US3731266A (en) * 1971-03-25 1973-05-01 Bell Lab Inc Inertia-compensated a.c. biased hydrophone incorporating a porous capacitance transducer
FR2361033A1 (fr) * 1976-08-03 1978-03-03 France Etat Transducteurs piezoelectriques et antennes acoustiques immergeables a grande profondeur
US4409681A (en) * 1979-03-15 1983-10-11 Sanders Associates, Inc. Transducer
US4420826A (en) * 1981-07-06 1983-12-13 Sanders Associates, Inc. Stress relief for flextensional transducer
US4731764A (en) * 1985-09-12 1988-03-15 British Aerospace Plc Sonar transducers
US4764907A (en) * 1986-04-30 1988-08-16 Allied Corporation Underwater transducer
US4845687A (en) * 1988-05-05 1989-07-04 Edo Corporation, Western Division Flextensional sonar transducer assembly

Also Published As

Publication number Publication date
FR2639786A1 (fr) 1990-06-01
US4970706A (en) 1990-11-13
EP0583805A1 (fr) 1994-02-23
EP0367681A1 (fr) 1990-05-09

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Legal Events

Date Code Title Description
ST Notification of lapse