IT1235727B - Procedimenti e trasduttori elettroacustici per emettere delle onde acustiche a bassa frequenza in un liquido - Google Patents

Procedimenti e trasduttori elettroacustici per emettere delle onde acustiche a bassa frequenza in un liquido

Info

Publication number
IT1235727B
IT1235727B IT8920232A IT2023289A IT1235727B IT 1235727 B IT1235727 B IT 1235727B IT 8920232 A IT8920232 A IT 8920232A IT 2023289 A IT2023289 A IT 2023289A IT 1235727 B IT1235727 B IT 1235727B
Authority
IT
Italy
Prior art keywords
electroacoustic
transducers
procedures
liquid
low frequency
Prior art date
Application number
IT8920232A
Other languages
English (en)
Other versions
IT8920232A0 (it
Inventor
Didier Boucher
Yves Ripoll
Original Assignee
France Etat
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 France Etat filed Critical France Etat
Publication of IT8920232A0 publication Critical patent/IT8920232A0/it
Application granted granted Critical
Publication of IT1235727B publication Critical patent/IT1235727B/it

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'
    • 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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/20—Reflecting arrangements
    • G10K11/205—Reflecting arrangements for underwater use

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
IT8920232A 1988-05-05 1989-04-21 Procedimenti e trasduttori elettroacustici per emettere delle onde acustiche a bassa frequenza in un liquido IT1235727B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8806023A FR2665998B1 (fr) 1988-05-05 1988-05-05 Procedes et transducteurs electro-acoustiques pour emettre des ondes acoustiques a basse frequence dans un liquide.

Publications (2)

Publication Number Publication Date
IT8920232A0 IT8920232A0 (it) 1989-04-21
IT1235727B true IT1235727B (it) 1992-09-24

Family

ID=9366005

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8920232A IT1235727B (it) 1988-05-05 1989-04-21 Procedimenti e trasduttori elettroacustici per emettere delle onde acustiche a bassa frequenza in un liquido

Country Status (7)

Country Link
US (1) US5363345A (it)
DE (1) DE3914413C2 (it)
FR (1) FR2665998B1 (it)
GB (1) GB2247593B (it)
IT (1) IT1235727B (it)
NL (1) NL8900960A (it)
SE (1) SE468071B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
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.
FR2697709B1 (fr) * 1992-11-05 1994-12-30 France Etat Armement Dispositif d'étanchéité de moteurs électro-acoustiques.
FR2713429B1 (fr) * 1993-12-03 1996-02-09 France Etat Armement Procédé d'émission de forte puissance d'ondes acoustiques et pavillons de transducteurs correspondants.
FR2720585B1 (fr) * 1994-05-26 1996-07-05 France Etat Armement Transducteur électro acoustique antenne sonar ouverts.
FR2720588B1 (fr) * 1994-05-26 1996-07-05 France Etat Armement Perfectionnement acoustique aux antennes sonar.
EP0684085A1 (fr) * 1994-05-26 1995-11-29 ETAT FRANCAIS Représenté par le Délégué Général pour l'Armement Antenne sonar ouverte comportant des transducteurs électro-acoustiques
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.
FR2731130B1 (fr) * 1995-02-23 1997-04-11 France Etat Procede et transducteurs pour emettre des ondes acoustiques dans un liquide avec une directivite marquee aux basses frequences
FR2731129B1 (fr) * 1995-02-23 1997-04-11 France Etat Procede et dispositif pour diminuer la frequence de resonance des cavites des transducteurs immergeables
FR2731128B1 (fr) * 1995-02-23 1997-04-11 France Etat Procede et transducteurs immerges dans un fluide pour l'emission d'ondes acoustiques a basse frequence avec des pavillons alleges
FR2779533B1 (fr) 1998-06-09 2000-08-25 Total Sa Dispositif d'acquisition sismique a haute resolution
EP1060798A1 (en) * 1999-06-18 2000-12-20 Prokic Miodrag Unidirectional single piston ultrasonic transducer
FR2818754B1 (fr) * 2000-12-21 2004-06-18 Inst Francais Du Petrole Dispositif pour engendrer des ondes elastiques focalisees dans un milieu materiel tel que le sous-sol, et methode pour sa mise en oeuvre
US6700839B1 (en) * 2002-02-19 2004-03-02 Visteon Global Technologies, Inc. Fast seek between multiple selections in a multimedia player
US7830811B2 (en) * 2003-10-30 2010-11-09 Tokyo Electron Limited Terminal apparatus, terminal apparatus control method, network system, network system control method, program and recording medium
FR2940579B1 (fr) * 2008-12-23 2012-09-28 Ixsea Transducteur d'ondes acoustiques et antenne sonar de directivite amelioree.
FR2971112B1 (fr) * 2011-02-01 2014-01-03 Ixblue Transducteur electro-acoustique basse frequence et procede de generation d'ondes acoustiques.
FR3026569B1 (fr) * 2014-09-26 2017-12-08 Thales Sa Antenne omnidirectionnelle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962695A (en) * 1955-05-13 1960-11-29 Harris Transducer Corp Resonant low-frequency transducer
US3274537A (en) * 1963-10-17 1966-09-20 William J Toulis Flexural-extensional electro-mechanical transducer
US3311873A (en) * 1965-11-10 1967-03-28 Schloss Fred Intensity meter, particle acceleration type
US3827459A (en) * 1971-10-19 1974-08-06 Toro Co Water powered drive for automatic controllers
FR2302656A1 (fr) * 1975-02-27 1976-09-24 France Etat Transducteur piezoelectrique pour basses frequences
EP0209238A3 (en) * 1985-06-14 1989-03-08 Gould Inc. Double piston acoustic transducer with selectable directivity
US4866683A (en) * 1988-05-24 1989-09-12 Honeywell, Inc. Integrated acoustic receiver or projector

Also Published As

Publication number Publication date
DE3914413C2 (de) 1998-10-15
IT8920232A0 (it) 1989-04-21
FR2665998B1 (fr) 1993-10-29
SE9101427L (sv) 1992-10-26
US5363345A (en) 1994-11-08
SE9101427D0 (sv) 1991-05-13
FR2665998A1 (fr) 1992-02-21
DE3914413A1 (de) 1992-04-02
SE468071B (sv) 1992-10-26
GB2247593A (en) 1992-03-04
GB8909407D0 (en) 1991-11-06
GB2247593B (en) 1992-06-10
NL8900960A (nl) 1992-01-02

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970522