NO902340L - Anordning ved akustisk apparat. - Google Patents

Anordning ved akustisk apparat.

Info

Publication number
NO902340L
NO902340L NO90902340A NO902340A NO902340L NO 902340 L NO902340 L NO 902340L NO 90902340 A NO90902340 A NO 90902340A NO 902340 A NO902340 A NO 902340A NO 902340 L NO902340 L NO 902340L
Authority
NO
Norway
Prior art keywords
acoustic
acoustic device
Prior art date
Application number
NO90902340A
Other languages
English (en)
Other versions
NO180180B (no
NO180180C (no
NO902340D0 (no
Inventor
Rune Tenghamn
Dag Wikstroem
Original Assignee
Asea Atom Ab
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 Asea Atom Ab filed Critical Asea Atom Ab
Publication of NO902340D0 publication Critical patent/NO902340D0/no
Publication of NO902340L publication Critical patent/NO902340L/no
Publication of NO180180B publication Critical patent/NO180180B/no
Publication of NO180180C publication Critical patent/NO180180C/no

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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Paper (AREA)
NO902340A 1989-05-29 1990-05-25 Anordning ved akustisk apparat NO180180C (no)

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 NO902340D0 (no) 1990-05-25
NO902340L true 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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.
EP0297101B1 (en) * 1986-03-19 1992-04-22 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and 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

Also Published As

Publication number Publication date
SE8901905L (sv) 1990-11-30
EP0400497A1 (en) 1990-12-05
SE8901905D0 (sv) 1989-05-29
NO180180B (no) 1996-11-18
EP0400497B1 (en) 1994-03-23
US5101384A (en) 1992-03-31
NO180180C (no) 1997-02-26
JPH0322699A (ja) 1991-01-31
DE69007541D1 (de) 1994-04-28
NO902340D0 (no) 1990-05-25
SE463794B (sv) 1991-01-21

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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees