JPH02123900A - 可変張力トランスジューサ - Google Patents

可変張力トランスジューサ

Info

Publication number: JPH02123900A
Authority: JP; Japan
Prior art keywords: variable tension; tension transducer; cavity; shell; helmholtz resonator
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.): Pending

Application number

JP1249360A

Other languages

English (en)

Japanese (ja)

Inventor

John Robert Oswin

ジヨン・ロバート・オスウイン

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

1989-09-27

Publication date

1990-05-11

1989-09-27 Application filed by British Aerospace PLC filed Critical British Aerospace PLC

1990-05-11 Publication of JPH02123900A publication Critical patent/JPH02123900A/ja

Status Pending legal-status Critical Current

Links

239000013535 sea water Substances 0.000 claims abstract description 9
229920001971 elastomer Polymers 0.000 claims description 6
239000000806 elastomer Substances 0.000 claims description 5
239000012777 electrically insulating material Substances 0.000 claims 1
239000012530 fluid Substances 0.000 abstract description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
239000007788 liquid Substances 0.000 abstract 1
230000005855 radiation Effects 0.000 description 6
239000003638 chemical reducing agent Substances 0.000 description 4
239000000463 material Substances 0.000 description 3
229920002635 polyurethane Polymers 0.000 description 2
239000004814 polyurethane Substances 0.000 description 2
210000004712 air sac Anatomy 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
238000005452 bending Methods 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
230000006835 compression Effects 0.000 description 1
238000007906 compression Methods 0.000 description 1
238000010276 construction Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000010586 diagram Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000002706 hydrostatic effect Effects 0.000 description 1
238000007654 immersion Methods 0.000 description 1
230000001939 inductive effect Effects 0.000 description 1
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
238000000034 method Methods 0.000 description 1
230000011514 reflex Effects 0.000 description 1
230000004044 response Effects 0.000 description 1
238000000926 separation method Methods 0.000 description 1
125000006850 spacer group Chemical group 0.000 description 1
239000000126 substance Substances 0.000 description 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)

JP1249360A 1988-10-04 1989-09-27 可変張力トランスジューサ Pending JPH02123900A (ja)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB888823245A GB8823245D0 (en)	1988-10-04	1988-10-04	Flextensional transducer
GB8823245.9		1988-10-04

Publications (1)

Publication Number	Publication Date
JPH02123900A true JPH02123900A (ja)	1990-05-11

Family

ID=10644674

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP1249360A Pending JPH02123900A (ja)	1988-10-04	1989-09-27	可変張力トランスジューサ

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

Family Cites Families (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

Also Published As

Publication number	Publication date
EP0363032A2 (fr)	1990-04-11
EP0363032A3 (fr)	1990-10-24
NO893824D0 (no)	1989-09-26
NO893824L (no)	1990-04-05
GB8823245D0 (en)	1989-04-19

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