FR2671928B1 - DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS. - Google Patents

DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS.

Info

Publication number
FR2671928B1
FR2671928B1 FR9100661A FR9100661A FR2671928B1 FR 2671928 B1 FR2671928 B1 FR 2671928B1 FR 9100661 A FR9100661 A FR 9100661A FR 9100661 A FR9100661 A FR 9100661A FR 2671928 B1 FR2671928 B1 FR 2671928B1
Authority
FR
France
Prior art keywords
acoustic transducers
directional electro
electro
directional
transducers
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
FR9100661A
Other languages
French (fr)
Other versions
FR2671928A1 (en
Inventor
Richard Monique
Scarpitta Alain
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
Original Assignee
Direction General pour lArmement DGA
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 filed Critical Direction General pour lArmement DGA
Priority to FR9100661A priority Critical patent/FR2671928B1/en
Publication of FR2671928A1 publication Critical patent/FR2671928A1/en
Application granted granted Critical
Publication of FR2671928B1 publication Critical patent/FR2671928B1/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
    • B06B1/0603—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 a piezoelectric bender, e.g. bimorph

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR9100661A 1991-01-22 1991-01-22 DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS. Expired - Fee Related FR2671928B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9100661A FR2671928B1 (en) 1991-01-22 1991-01-22 DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9100661A FR2671928B1 (en) 1991-01-22 1991-01-22 DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS.

Publications (2)

Publication Number Publication Date
FR2671928A1 FR2671928A1 (en) 1992-07-24
FR2671928B1 true FR2671928B1 (en) 1995-10-20

Family

ID=9408905

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9100661A Expired - Fee Related FR2671928B1 (en) 1991-01-22 1991-01-22 DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS.

Country Status (1)

Country Link
FR (1) FR2671928B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2720589B1 (en) * 1994-05-27 1996-07-05 France Etat Armement Method and transducer for emitting wideband and low frequency acoustic waves in unlimited immersion depth.
DE10345533A1 (en) * 2003-09-30 2005-05-04 Fraunhofer Ges Forschung Ultrasonic transducer for generation and/or detection of ultrasonic oscillations in high pressure medium with oscillator element coupled to latter via incompressible inner medium within oscillator housing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081786A (en) * 1976-08-16 1978-03-28 Etat Francais Represente Par Le Delegue Ministeriel Pour L'armement Hydrophone having a directive lobe in the form of a cardioid

Also Published As

Publication number Publication date
FR2671928A1 (en) 1992-07-24

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Legal Events

Date Code Title Description
ST Notification of lapse