DK0684084T3 - Fremgangsmåde og transducer til udsendelse af elektromagnetiske bølger, der er bredbåndede, med lav frekvens og ubegrænset - Google Patents

Fremgangsmåde og transducer til udsendelse af elektromagnetiske bølger, der er bredbåndede, med lav frekvens og ubegrænset

Info

Publication number
DK0684084T3
DK0684084T3 DK95401229T DK95401229T DK0684084T3 DK 0684084 T3 DK0684084 T3 DK 0684084T3 DK 95401229 T DK95401229 T DK 95401229T DK 95401229 T DK95401229 T DK 95401229T DK 0684084 T3 DK0684084 T3 DK 0684084T3
Authority
DK
Denmark
Prior art keywords
broadband
unlimited
transducer
low frequency
electromagnetic waves
Prior art date
Application number
DK95401229T
Other languages
English (en)
Inventor
Didier Boucher
Gall Yves Le
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
Application granted granted Critical
Publication of DK0684084T3 publication Critical patent/DK0684084T3/da

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)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
DK95401229T 1994-05-27 1995-05-26 Fremgangsmåde og transducer til udsendelse af elektromagnetiske bølger, der er bredbåndede, med lav frekvens og ubegrænset DK0684084T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9406439A FR2720589B1 (fr) 1994-05-27 1994-05-27 Procédé et transducteur pour émettre des ondes acoustiques à larges bandes et basses fréquences en profondeur d'immersion illimitée.

Publications (1)

Publication Number Publication Date
DK0684084T3 true DK0684084T3 (da) 1999-08-09

Family

ID=9463568

Family Applications (1)

Application Number Title Priority Date Filing Date
DK95401229T DK0684084T3 (da) 1994-05-27 1995-05-26 Fremgangsmåde og transducer til udsendelse af elektromagnetiske bølger, der er bredbåndede, med lav frekvens og ubegrænset

Country Status (7)

Country Link
US (1) US5579287A (da)
EP (1) EP0684084B1 (da)
CA (1) CA2150297C (da)
DE (1) DE69506169T2 (da)
DK (1) DK0684084T3 (da)
ES (1) ES2124507T3 (da)
FR (1) FR2720589B1 (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US7679774B2 (en) * 2001-04-06 2010-03-16 Oce Printing Systems Gmbh Method, system and computer program for the generation of an electronic document from scanned image data
DE10345533A1 (de) * 2003-09-30 2005-05-04 Fraunhofer Ges Forschung Ultraschallwandler zum Betrieb in einem unter erhöhtem Druck stehenden Medium
FR2971112B1 (fr) * 2011-02-01 2014-01-03 Ixblue Transducteur electro-acoustique basse frequence et procede de generation d'ondes acoustiques.
GB2508206B (en) * 2012-11-23 2017-06-28 Thales Holdings Uk Plc A transducer for a locator beacon and an underwater locator beacon
US9995834B2 (en) * 2013-05-07 2018-06-12 Pgs Geophysical As Variable mass load marine vibrator
US10488542B2 (en) * 2014-12-02 2019-11-26 Pgs Geophysical As Use of external driver to energize a seismic source
US20160202365A1 (en) * 2015-01-08 2016-07-14 Pgs Geophysical As Compliance chamber with linear motor for marine acoustic vibrators
FR3042134B1 (fr) 2015-10-09 2020-10-09 Ixblue Dispositif d'emission/reception acoustique sous-marine a large bande
US11913329B1 (en) 2022-09-21 2024-02-27 Saudi Arabian Oil Company Untethered logging devices and related methods of logging a wellbore
CN116532349B (zh) * 2023-06-07 2024-01-30 中国科学院声学研究所 复合驱动的亥姆赫兹换能器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274537A (en) * 1963-10-17 1966-09-20 William J Toulis Flexural-extensional electro-mechanical transducer
FR2498867A1 (fr) * 1981-01-27 1982-07-30 Tech Radioelect Electro Fs Transducteur electroacoustique de puissance concu pour les immersions a grande profondeur
FR2569326B1 (fr) * 1984-08-16 1988-07-29 France Etat Armement Transducteurs piezo-electriques et antennes de sonar pouvant etre immerges a grande profondeur
US4875199A (en) * 1986-09-09 1989-10-17 Hutchins Roger W Deep water transient sound generator
FR2665998B1 (fr) * 1988-05-05 1993-10-29 Etat Francais Delegue Armement Procedes et transducteurs electro-acoustiques pour emettre des ondes acoustiques a basse frequence dans un liquide.
FR2634292B1 (fr) * 1988-07-15 1990-10-19 Grosso Gilles Procede et dispositifs pour maintenir le gaz contenu dans une enceinte immergee en equilibre de pression avec l'exterieur
GB8823245D0 (en) * 1988-10-04 1989-04-19 British Aerospace Flextensional transducer
US4868799A (en) * 1988-10-11 1989-09-19 Frank Massa Means for equalizing the internal pressure in an underwater transducer employing a vibratile piston to permit operation of the transducer at water depths in excess of a few hundred feet
FR2665814B1 (fr) * 1990-08-10 1993-06-11 Thomson Csf Transducteur electroacoustique destine a etre immerge et comportant un systeme de compensation automatique de la pression d'immersion.
US5291461A (en) * 1990-11-28 1994-03-01 Raytheon Company Elastomer structure for transducers
FR2671928B1 (fr) * 1991-01-22 1995-10-20 France Etat Armement Transducteurs electro-acoustiques directifs.
DE4111296A1 (de) * 1991-04-08 1992-10-22 Gkn Automotive Ag Verstellvorrichtung fuer eine reibungskupplung
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.

Also Published As

Publication number Publication date
FR2720589B1 (fr) 1996-07-05
EP0684084B1 (fr) 1998-11-25
EP0684084A1 (fr) 1995-11-29
US5579287A (en) 1996-11-26
FR2720589A1 (fr) 1995-12-01
DE69506169D1 (de) 1999-01-07
DE69506169T2 (de) 1999-05-06
CA2150297C (fr) 2006-12-19
CA2150297A1 (fr) 1995-11-28
ES2124507T3 (es) 1999-02-01

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