GB1350213A - Electroacoustic transducers - Google Patents

Electroacoustic transducers

Info

Publication number
GB1350213A
GB1350213A GB1200671A GB1200671A GB1350213A GB 1350213 A GB1350213 A GB 1350213A GB 1200671 A GB1200671 A GB 1200671A GB 1200671 A GB1200671 A GB 1200671A GB 1350213 A GB1350213 A GB 1350213A
Authority
GB
United Kingdom
Prior art keywords
discs
motor
counterweight
electrodes
envelope
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
Application number
GB1200671A
Other languages
English (en)
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.)
Brandt O G
Original Assignee
Brandt O G
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 Brandt O G filed Critical Brandt O G
Publication of GB1350213A publication Critical patent/GB1350213A/en
Expired 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'

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
GB1200671A 1970-04-30 1971-04-28 Electroacoustic transducers Expired GB1350213A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7015862A FR2085545B1 (it) 1970-04-30 1970-04-30

Publications (1)

Publication Number Publication Date
GB1350213A true GB1350213A (en) 1974-04-18

Family

ID=9054909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1200671A Expired GB1350213A (en) 1970-04-30 1971-04-28 Electroacoustic transducers

Country Status (5)

Country Link
CA (1) CA957063A (it)
DE (1) DE2121236A1 (it)
FR (1) FR2085545B1 (it)
GB (1) GB1350213A (it)
NL (1) NL7105829A (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2204094B1 (it) * 1972-10-20 1978-10-20 Thomson Csf
DE2414936C2 (de) * 1974-03-28 1982-12-16 Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach Elektroakustischer Wandler mit magnetostriktivem Element
FR2290812A1 (fr) * 1974-11-08 1976-06-04 Thomson Csf Transducteur electroacoustique pour immersion profonde
DE2646389C2 (de) * 1976-10-14 1984-10-31 Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach Piezokeramischer elektroakustischer Wandler
DE3009048C2 (de) * 1980-03-08 1983-04-21 Kuttruff, Heinrich, Prof. Dr., 5100 Aachen Piezoelektrischer Mehrschichtwandler für Ultraschall
US4319345A (en) * 1980-05-23 1982-03-09 Halliburton Company Acoustic well-logging transmitting and receiving transducers
FR2496379A1 (fr) * 1980-12-16 1982-06-18 Tech Radioelect Electro Fs Transducteur electroacoustique de puissance pour immersion profonde
FR2498866A1 (fr) * 1981-01-27 1982-07-30 Tech Radioelect Electro Fs Carter de maintien pour transducteur electroacoustique de puissance soumis a de fortes pressions hydrostatiques
FR2498867A1 (fr) * 1981-01-27 1982-07-30 Tech Radioelect Electro Fs Transducteur electroacoustique de puissance concu pour les immersions a grande profondeur
FR2532141A1 (fr) * 1982-08-23 1984-02-24 Sintra Alcatel Sa Transducteur electro-acoustique immerge
FR2640455B1 (fr) * 1988-07-08 1991-05-17 Thomson Csf Transducteur electroacoustique, utilisable notamment comme source d'ondes acoustiques pour les applications sous-marines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405226A (en) * 1942-12-28 1946-08-06 Bell Telephone Labor Inc Low frequency projector or hydrophone
US3277436A (en) * 1956-02-09 1966-10-04 James W Fitzgerald Hollow electro-acoustic transducer
US2961635A (en) * 1956-11-09 1960-11-22 Winfield J Trott Low-frequency underwater sound flexure mode ring drive transducer

Also Published As

Publication number Publication date
FR2085545B1 (it) 1973-10-19
NL7105829A (it) 1971-11-02
CA957063A (en) 1974-10-29
DE2121236A1 (de) 1971-12-30
FR2085545A1 (it) 1971-12-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee