EP0363032A3 - Transducteurs flextensionnels - Google Patents

Transducteurs flextensionnels Download PDF

Info

Publication number: EP0363032A3
Authority: EP; European Patent Office
Prior art keywords: shell; cavity; flextensional transducers; flextensional transducer; flextensional
Prior art date: 1988-10-04
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP19890309332

Other languages

German (de)

English (en)

Other versions

EP0363032A2 (fr

Inventor

John Robert Oswin

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.)

BAE Systems PLC

Original Assignee

British Aerospace PLC

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.)

1988-10-04

Filing date

1989-09-14

Publication date

1990-10-24

1989-09-14 Application filed by British Aerospace PLC filed Critical British Aerospace PLC

1990-04-11 Publication of EP0363032A2 publication Critical patent/EP0363032A2/fr

1990-10-24 Publication of EP0363032A3 publication Critical patent/EP0363032A3/fr

Status Withdrawn legal-status Critical Current

Links

230000002706 hydrostatic effect Effects 0.000 abstract 1

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
- 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
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
- G10K11/04—Acoustic filters ; Acoustic resonators
- 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

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Multimedia (AREA)
Transducers For Ultrasonic Waves (AREA)
Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

EP19890309332 1988-10-04 1989-09-14 Transducteurs flextensionnels Withdrawn EP0363032A3 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB888823245A GB8823245D0 (en)	1988-10-04	1988-10-04	Flextensional transducer
GB8823245		1988-10-04

Publications (2)

Publication Number	Publication Date
EP0363032A2 EP0363032A2 (fr)	1990-04-11
EP0363032A3 true EP0363032A3 (fr)	1990-10-24

Family

ID=10644674

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19890309332 Withdrawn EP0363032A3 (fr)	1988-10-04	1989-09-14	Transducteurs flextensionnels

Country Status (4)

Country	Link
EP (1)	EP0363032A3 (fr)
JP (1)	JPH02123900A (fr)
GB (1)	GB8823245D0 (fr)
NO (1)	NO893824L (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2237477A (en) *	1989-10-06	1991-05-01	British Aerospace	Sonar transducer
FR2697710B1 (fr) *	1992-11-05	1995-01-20	France Etat Armement	Procédé et transducteur pour émettre des ondes acoustiques de très basses fréquences, dans un liquide en immersion illimitée.
FR2713430B1 (fr) *	1993-12-03	1996-03-08	France Etat Armement	Procédé d'émission d'ondes acoustiques très basses fréquences à forte puissance, et transducteurs correspondants.
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.
AT403219B (de) *	1995-02-01	1997-12-29	Scheidl Rudolf Dipl Ing Dr Tec	Vorrichtung zum ansteuern eines hydrostatischen antriebes
US6643222B2 (en) *	2002-01-10	2003-11-04	Bae Systems Information And Electronic Systems Integration Inc	Wave flextensional shell configuration
FR2850217A1 (fr)	2003-01-17	2004-07-23	Cedrat Technologies	Actionneur piezoactif a deplacement amplifie amorti
FI121764B (fi)	2008-12-31	2011-03-31	Patria Aviat Oy	Nesteessä oleva värähtelijä

Citations (2)

* 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
US4409681A (en) *	1979-03-15	1983-10-11	Sanders Associates, Inc.	Transducer

1988
- 1988-10-04 GB GB888823245A patent/GB8823245D0/en active Pending
1989
- 1989-09-14 EP EP19890309332 patent/EP0363032A3/fr not_active Withdrawn
- 1989-09-26 NO NO89893824A patent/NO893824L/no unknown
- 1989-09-27 JP JP1249360A patent/JPH02123900A/ja active Pending

Patent Citations (2)

* 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
US4409681A (en) *	1979-03-15	1983-10-11	Sanders Associates, Inc.	Transducer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF ACOUSTICAL SOCIETY OF AMERICA, vol. 68, no. 4, October 1980, pages 1031-1037, New York, US; R.S. WOOLLETT: "Basic problems caused by depth and size constraints in low-frequency underwater transducers" *

Also Published As

Publication number	Publication date
EP0363032A2 (fr)	1990-04-11
NO893824D0 (no)	1989-09-26
NO893824L (no)	1990-04-05
JPH02123900A (ja)	1990-05-11
GB8823245D0 (en)	1989-04-19

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Legal Events

Date	Code	Title	Description
1990-02-24	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1990-04-11	17P	Request for examination filed	Effective date: 19890923
1990-04-11	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB NL
1990-09-04	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1990-10-24	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB NL
1991-08-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
1991-10-16	18D	Application deemed to be withdrawn	Effective date: 19910425