IT8920230A0 - Trasduttori elettroacustici comportanti un guscio emettitore flessibile e stagno - Google Patents
Trasduttori elettroacustici comportanti un guscio emettitore flessibile e stagnoInfo
- Publication number
- IT8920230A0 IT8920230A0 IT8920230A IT2023089A IT8920230A0 IT 8920230 A0 IT8920230 A0 IT 8920230A0 IT 8920230 A IT8920230 A IT 8920230A IT 2023089 A IT2023089 A IT 2023089A IT 8920230 A0 IT8920230 A0 IT 8920230A0
- Authority
- IT
- Italy
- Prior art keywords
- waterproof
- flexible
- electroacoustic transducers
- transducers including
- emitter shell
- Prior art date
Links
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
- 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)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8805661A FR2688972B1 (fr) | 1988-04-28 | 1988-04-28 | Transducteurs electro-acoustiques comportant une coque emettrice flexible et etanche. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8920230A0 true IT8920230A0 (it) | 1989-04-21 |
IT1237007B IT1237007B (it) | 1993-05-13 |
Family
ID=9365772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8920230A IT1237007B (it) | 1988-04-28 | 1989-04-21 | Trasduttori elettroacustici comportanti un guscio emettitore flessibile e stagno |
Country Status (7)
Country | Link |
---|---|
US (1) | US5515343A (it) |
DE (1) | DE3914141C2 (it) |
FR (1) | FR2688972B1 (it) |
GB (1) | GB2264420B (it) |
IT (1) | IT1237007B (it) |
NL (1) | NL8900961A (it) |
SE (1) | SE470247B (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO961765L (no) * | 1996-04-30 | 1997-10-31 | Unaco Systems Ab | Akustisk sender II |
NO303472B1 (no) * | 1996-04-30 | 1998-07-13 | Unaco Systems Ab | Akustisk sender |
US5894451A (en) * | 1997-10-21 | 1999-04-13 | The United States Of America As Represented By The Secretary Of The Navy | Impulsive snap-through acoustic pulse generator |
US6298012B1 (en) * | 1999-10-04 | 2001-10-02 | The United States Of America As Represented By The Secretary Of The Navy | Doubly resonant push-pull flextensional |
US7551518B1 (en) * | 2008-02-26 | 2009-06-23 | Pgs Geophysical As | Driving means for acoustic marine vibrator |
US8188638B2 (en) * | 2009-07-27 | 2012-05-29 | The United States Of America As Represented By The Secretary Of The Navy | Cooling acoustic transducer with heat pipes |
US11931776B2 (en) | 2018-12-26 | 2024-03-19 | Industrial Technology Research Institute | Actuator, method for manufacturing the actuator, and acoustic transmitter |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3274537A (en) * | 1963-10-17 | 1966-09-20 | William J Toulis | Flexural-extensional electro-mechanical transducer |
US3541502A (en) * | 1969-01-03 | 1970-11-17 | Us Navy | Deep submergence transducer |
US3974474A (en) * | 1973-06-04 | 1976-08-10 | General Electric Company | Underwater electroacoustic transducer construction |
US4072871A (en) * | 1974-05-20 | 1978-02-07 | Westinghouse Electric Corp. | Electroacoustic transducer |
EP0209238A3 (en) * | 1985-06-14 | 1989-03-08 | Gould Inc. | Double piston acoustic transducer with selectable directivity |
US4731764A (en) * | 1985-09-12 | 1988-03-15 | British Aerospace Plc | Sonar transducers |
WO1987005772A1 (en) * | 1986-03-19 | 1987-09-24 | The Secretary Of State For Defence In Her Britanni | Sonar transducers |
AU597052B2 (en) * | 1986-03-19 | 1990-05-24 | Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland, The | Flextensional transducers |
US4764907A (en) * | 1986-04-30 | 1988-08-16 | Allied Corporation | Underwater transducer |
US4845688A (en) * | 1988-03-21 | 1989-07-04 | Image Acoustics, Inc. | Electro-mechanical transduction apparatus |
FR2639786B1 (fr) * | 1988-11-04 | 1991-07-26 | Thomson Csf | Transducteur flextenseur |
-
1988
- 1988-04-28 FR FR8805661A patent/FR2688972B1/fr not_active Expired - Fee Related
-
1989
- 1989-04-18 NL NL8900961A patent/NL8900961A/nl not_active Application Discontinuation
- 1989-04-21 IT IT8920230A patent/IT1237007B/it active
- 1989-04-25 GB GB8909402A patent/GB2264420B/en not_active Expired - Fee Related
- 1989-04-28 DE DE3914141A patent/DE3914141C2/de not_active Expired - Fee Related
- 1989-04-28 US US07/360,945 patent/US5515343A/en not_active Expired - Fee Related
-
1991
- 1991-05-13 SE SE9101426A patent/SE470247B/sv unknown
Also Published As
Publication number | Publication date |
---|---|
GB2264420A (en) | 1993-08-25 |
SE9101426L (sv) | 1993-08-13 |
GB8909402D0 (en) | 1993-05-26 |
FR2688972A1 (fr) | 1993-09-24 |
NL8900961A (nl) | 1992-12-01 |
IT1237007B (it) | 1993-05-13 |
DE3914141A1 (de) | 1993-10-21 |
GB2264420B (en) | 1994-01-19 |
FR2688972B1 (fr) | 1996-10-11 |
DE3914141C2 (de) | 1998-10-08 |
SE470247B (sv) | 1993-12-13 |
US5515343A (en) | 1996-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970522 |