NO931148L - Akustisk sender - Google Patents

Akustisk sender

Info

Publication number
NO931148L
NO931148L NO93931148A NO931148A NO931148L NO 931148 L NO931148 L NO 931148L NO 93931148 A NO93931148 A NO 93931148A NO 931148 A NO931148 A NO 931148A NO 931148 L NO931148 L NO 931148L
Authority
NO
Norway
Prior art keywords
acoustic transmitter
acoustic
transmitter
Prior art date
Application number
NO93931148A
Other languages
English (en)
Other versions
NO931148D0 (no
NO306437B1 (no
Inventor
Gunnar Molund
Rune Tenghamn
Magnus Zetterlund
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 NO931148D0 publication Critical patent/NO931148D0/no
Publication of NO931148L publication Critical patent/NO931148L/no
Publication of NO306437B1 publication Critical patent/NO306437B1/no

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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Toys (AREA)
NO931148A 1990-09-28 1993-03-26 Drivenhet for en akustisk sender NO306437B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9003086A SE467081B (sv) 1990-09-28 1990-09-28 Drivpaket ingaaende i akustiska saendare
PCT/SE1991/000612 WO1992006567A1 (en) 1990-09-28 1991-09-16 Acoustic transmitter

Publications (3)

Publication Number Publication Date
NO931148D0 NO931148D0 (no) 1993-03-26
NO931148L true NO931148L (no) 1993-03-26
NO306437B1 NO306437B1 (no) 1999-11-01

Family

ID=20380480

Family Applications (1)

Application Number Title Priority Date Filing Date
NO931148A NO306437B1 (no) 1990-09-28 1993-03-26 Drivenhet for en akustisk sender

Country Status (10)

Country Link
US (1) US5329499A (no)
EP (1) EP0550684B1 (no)
JP (1) JPH06501596A (no)
CN (1) CN1027949C (no)
CA (1) CA2091892C (no)
DE (1) DE69111459T2 (no)
FI (1) FI931381A0 (no)
NO (1) NO306437B1 (no)
SE (1) SE467081B (no)
WO (1) WO1992006567A1 (no)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497357A (en) * 1988-12-23 1996-03-05 Alliedsignal Inc. Shock-resistant flextensional transducer
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
NO176457C (no) * 1993-03-15 1995-04-05 Pgs Seres As Drivenhet for akustiske sendere
NO301354B1 (no) * 1994-11-02 1997-10-13 Petroleum Geo Services As Akustisk kildeanordning
NO301796B1 (no) * 1995-05-18 1997-12-08 Unaco Systems Ab Drivenhet for akustiske sendere
NO301795B1 (no) * 1995-06-28 1997-12-08 Unaco Systems Ab Elektrodynamisk drivenhet for akustiske sendere
FR2740276B1 (fr) * 1995-10-20 1997-12-26 Cedrat Rech Actionneur piezoactif amplifie a raideur elevee
US5566132A (en) * 1995-12-11 1996-10-15 The United Sates Of America As Represented By The Secretary Of The Navy Acoustic transducer
GB0229954D0 (en) * 2002-12-20 2003-01-29 Newlands Technology Ltd Actuator
GB2434709B (en) * 2004-11-05 2009-09-09 Lockheed Corp Longitudinally driven slotted cylinder transducer
US7551518B1 (en) 2008-02-26 2009-06-23 Pgs Geophysical As Driving means for acoustic marine vibrator
US8094514B2 (en) * 2008-11-07 2012-01-10 Pgs Geophysical As Seismic vibrator array and method for using
US7974152B2 (en) * 2009-06-23 2011-07-05 Pgs Geophysical As Control system for marine vibrators and seismic acquisition system using such control system
US8335127B2 (en) * 2009-08-12 2012-12-18 Pgs Geophysical As Method for generating spread spectrum driver signals for a seismic vibrator array using multiple biphase modulation operations in each driver signal chip
US8446798B2 (en) 2010-06-29 2013-05-21 Pgs Geophysical As Marine acoustic vibrator having enhanced low-frequency amplitude
US8670292B2 (en) 2011-08-12 2014-03-11 Pgs Geophysical As Electromagnetic linear actuators for marine acoustic vibratory sources
US9562982B1 (en) 2012-08-13 2017-02-07 Applied Physical Sciences Corp. Coherent sound source for marine seismic surveys
EP3090285B1 (en) * 2013-12-30 2019-11-06 PGS Geophysical AS Control system for marine vibrators to reduce friction effects
CN107039026B (zh) * 2017-05-23 2020-04-14 西北核技术研究所 一种可调节弯张换能器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384351A (en) * 1978-12-11 1983-05-17 Sanders Associates, Inc. Flextensional transducer
AU578129B2 (en) * 1984-12-19 1988-10-13 Gould Inc. A rare earth flextensional transducer
US5345428A (en) * 1986-03-19 1994-09-06 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Flextensional transducers
AU597051B2 (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 Sonar transducers
US4764907A (en) * 1986-04-30 1988-08-16 Allied Corporation Underwater transducer
US4706230A (en) * 1986-08-29 1987-11-10 Nec Corporation Underwater low-frequency ultrasonic wave transmitter
CA1294360C (en) * 1988-03-11 1992-01-14 Garfield W. Mcmahon Ring-shell projector
US4845688A (en) * 1988-03-21 1989-07-04 Image Acoustics, Inc. Electro-mechanical transduction apparatus

Also Published As

Publication number Publication date
NO931148D0 (no) 1993-03-26
NO306437B1 (no) 1999-11-01
WO1992006567A1 (en) 1992-04-16
DE69111459T2 (de) 1996-04-04
EP0550684A1 (en) 1993-07-14
CN1060192A (zh) 1992-04-08
SE467081B (sv) 1992-05-18
JPH06501596A (ja) 1994-02-17
SE9003086L (sv) 1992-03-29
FI931381A (fi) 1993-03-26
CA2091892C (en) 1995-03-14
CA2091892A1 (en) 1992-03-29
EP0550684B1 (en) 1995-07-19
DE69111459D1 (de) 1995-08-24
US5329499A (en) 1994-07-12
FI931381A0 (fi) 1993-03-26
CN1027949C (zh) 1995-03-15

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Legal Events

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MM1K Lapsed by not paying the annual fees