NO902340D0 - Anordning ved akustisk apparat. - Google Patents
Anordning ved akustisk apparat.Info
- Publication number
- NO902340D0 NO902340D0 NO902340A NO902340A NO902340D0 NO 902340 D0 NO902340 D0 NO 902340D0 NO 902340 A NO902340 A NO 902340A NO 902340 A NO902340 A NO 902340A NO 902340 D0 NO902340 D0 NO 902340D0
- Authority
- NO
- Norway
- Prior art keywords
- acoustic
- acoustic device
- Prior art date
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
- B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8901905A SE463794B (sv) | 1989-05-29 | 1989-05-29 | Anordning vid akustiska saendare |
Publications (4)
Publication Number | Publication Date |
---|---|
NO902340D0 true NO902340D0 (no) | 1990-05-25 |
NO902340L NO902340L (no) | 1990-11-30 |
NO180180B NO180180B (no) | 1996-11-18 |
NO180180C NO180180C (no) | 1997-02-26 |
Family
ID=20376083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO902340A NO180180C (no) | 1989-05-29 | 1990-05-25 | Anordning ved akustisk apparat |
Country Status (6)
Country | Link |
---|---|
US (1) | US5101384A (no) |
EP (1) | EP0400497B1 (no) |
JP (1) | JPH0322699A (no) |
DE (1) | DE69007541D1 (no) |
NO (1) | NO180180C (no) |
SE (1) | SE463794B (no) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2675967A1 (fr) * | 1991-04-29 | 1992-10-30 | Devoir Jean Claude | Dispositif a inertie recuperant dans un meme secteur de cercle, une force. |
SE468967B (sv) * | 1991-08-29 | 1993-04-19 | Asea Atom Ab | Drivsystem foer akustiska aparater baserat paa en magnetkrets med en cylindrisk magnetostriktiv kuts som drivcell |
JP2000262076A (ja) * | 1999-03-05 | 2000-09-22 | Honda Motor Co Ltd | 超磁歪アクチュエータ |
US7235092B2 (en) | 1999-11-19 | 2007-06-26 | Advanced Bio Prosthetic Surfaces, Ltd. | Guidewires and thin film catheter-sheaths and method of making same |
JP4821589B2 (ja) * | 2006-01-30 | 2011-11-24 | ソニー株式会社 | スピーカ装置 |
GB0719246D0 (en) * | 2007-10-03 | 2007-11-14 | Feonic Plc | Transducer for vibration absorbing, sensing and transmitting |
CN105702244B (zh) * | 2014-11-28 | 2019-09-24 | 中国科学院声学研究所 | 一种嵌入式外部驱动iv型弯张换能器 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3716828A (en) * | 1970-02-02 | 1973-02-13 | Dynamics Corp Massa Div | Electroacoustic transducer with improved shock resistance |
FR2361033A1 (fr) * | 1976-08-03 | 1978-03-03 | France Etat | Transducteurs piezoelectriques et antennes acoustiques immergeables a grande profondeur |
US4384351A (en) * | 1978-12-11 | 1983-05-17 | Sanders Associates, Inc. | Flextensional transducer |
US4420826A (en) * | 1981-07-06 | 1983-12-13 | Sanders Associates, Inc. | Stress relief for flextensional transducer |
US4941202A (en) * | 1982-09-13 | 1990-07-10 | Sanders Associates, Inc. | Multiple segment flextensional transducer shell |
AU578129B2 (en) * | 1984-12-19 | 1988-10-13 | Gould Inc. | A rare earth flextensional transducer |
DE3669822D1 (de) * | 1985-09-12 | 1990-04-26 | British Aerospace | Sonarwandler. |
WO1987005773A1 (en) * | 1986-03-19 | 1987-09-24 | The Secretary Of State For Defence In Her Britanni | Flextensional transducers |
JP2534087B2 (ja) * | 1986-03-19 | 1996-09-11 | イギリス国 | ソナ―変換器 |
US4764907A (en) * | 1986-04-30 | 1988-08-16 | Allied Corporation | Underwater transducer |
-
1989
- 1989-05-29 SE SE8901905A patent/SE463794B/sv not_active IP Right Cessation
-
1990
- 1990-05-25 NO NO902340A patent/NO180180C/no not_active IP Right Cessation
- 1990-05-25 EP EP90109957A patent/EP0400497B1/en not_active Expired - Lifetime
- 1990-05-25 DE DE90109957T patent/DE69007541D1/de not_active Expired - Lifetime
- 1990-05-25 JP JP2134226A patent/JPH0322699A/ja active Pending
-
1991
- 1991-06-04 US US07/711,269 patent/US5101384A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69007541D1 (de) | 1994-04-28 |
JPH0322699A (ja) | 1991-01-31 |
NO180180B (no) | 1996-11-18 |
NO902340L (no) | 1990-11-30 |
EP0400497A1 (en) | 1990-12-05 |
NO180180C (no) | 1997-02-26 |
EP0400497B1 (en) | 1994-03-23 |
US5101384A (en) | 1992-03-31 |
SE463794B (sv) | 1991-01-21 |
SE8901905L (sv) | 1990-11-30 |
SE8901905D0 (sv) | 1989-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM1K | Lapsed by not paying the annual fees |