SE9102474D0 - Drivsystem foerakustiska apparater - Google Patents

Drivsystem foerakustiska apparater

Info

Publication number
SE9102474D0
SE9102474D0 SE9102474A SE9102474A SE9102474D0 SE 9102474 D0 SE9102474 D0 SE 9102474D0 SE 9102474 A SE9102474 A SE 9102474A SE 9102474 A SE9102474 A SE 9102474A SE 9102474 D0 SE9102474 D0 SE 9102474D0
Authority
SE
Sweden
Prior art keywords
drive
pct
magnetic material
devices
sec
Prior art date
Application number
SE9102474A
Other languages
English (en)
Other versions
SE9102474L (sv
SE468967B (sv
Inventor
G Engdahl
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
Priority to SE9102474A priority Critical patent/SE468967B/sv
Publication of SE9102474D0 publication Critical patent/SE9102474D0/sv
Priority to EP92919645A priority patent/EP0601110B1/en
Priority to US08/182,008 priority patent/US5457752A/en
Priority to PCT/SE1992/000577 priority patent/WO1993005624A1/en
Priority to CN 92109581 priority patent/CN1069846A/zh
Publication of SE9102474L publication Critical patent/SE9102474L/sv
Publication of SE468967B publication Critical patent/SE468967B/sv
Priority to NO940674A priority patent/NO308340B1/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)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
SE9102474A 1991-08-29 1991-08-29 Drivsystem foer akustiska aparater baserat paa en magnetkrets med en cylindrisk magnetostriktiv kuts som drivcell SE468967B (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9102474A SE468967B (sv) 1991-08-29 1991-08-29 Drivsystem foer akustiska aparater baserat paa en magnetkrets med en cylindrisk magnetostriktiv kuts som drivcell
EP92919645A EP0601110B1 (en) 1991-08-29 1992-08-24 Drive system for acoustic devices
US08/182,008 US5457752A (en) 1991-08-29 1992-08-24 Drive system for acoustic devices
PCT/SE1992/000577 WO1993005624A1 (en) 1991-08-29 1992-08-24 Drive system for acoustic devices
CN 92109581 CN1069846A (zh) 1991-08-29 1992-08-26 发声装置的驱动系统
NO940674A NO308340B1 (no) 1991-08-29 1994-02-25 Drivsystem for akustiske anordninger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9102474A SE468967B (sv) 1991-08-29 1991-08-29 Drivsystem foer akustiska aparater baserat paa en magnetkrets med en cylindrisk magnetostriktiv kuts som drivcell

Publications (3)

Publication Number Publication Date
SE9102474D0 true SE9102474D0 (sv) 1991-08-29
SE9102474L SE9102474L (sv) 1993-03-01
SE468967B SE468967B (sv) 1993-04-19

Family

ID=20383565

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9102474A SE468967B (sv) 1991-08-29 1991-08-29 Drivsystem foer akustiska aparater baserat paa en magnetkrets med en cylindrisk magnetostriktiv kuts som drivcell

Country Status (5)

Country Link
US (1) US5457752A (sv)
EP (1) EP0601110B1 (sv)
CN (1) CN1069846A (sv)
SE (1) SE468967B (sv)
WO (1) WO1993005624A1 (sv)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO301795B1 (no) * 1995-06-28 1997-12-08 Unaco Systems Ab Elektrodynamisk drivenhet for akustiske sendere
US6166539A (en) * 1996-10-30 2000-12-26 Regents Of The University Of Minnesota Magnetoresistance sensor having minimal hysteresis problems
US5747997A (en) * 1996-06-05 1998-05-05 Regents Of The University Of Minnesota Spin-valve magnetoresistance sensor having minimal hysteresis problems
AT410498B (de) * 2001-02-20 2003-05-26 Akg Acoustics Gmbh Elektroakustische kapsel
JP4758133B2 (ja) * 2005-04-28 2011-08-24 フォスター電機株式会社 超磁歪スピーカ
GB0719246D0 (en) * 2007-10-03 2007-11-14 Feonic Plc Transducer for vibration absorbing, sensing and transmitting
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
CN101893706B (zh) * 2009-05-20 2013-08-21 陈�峰 高精度磁场力平衡电容式单方向、双方向被动声纳传感器
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
EP3090284B1 (en) * 2013-12-30 2019-11-06 PGS Geophysical AS Control system for marine vibrators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438509A (en) * 1981-05-18 1984-03-20 Raytheon Company Transducer with tensioned-wire precompression
EP0207095A4 (en) * 1984-12-19 1989-03-13 Gould Inc FLEXTENSIONAL TRANSDUCER IN RARE EARTHS.
SE462820B (sv) * 1989-01-16 1990-09-03 Asea Brown Boveri Magnetkrets
SE463794B (sv) * 1989-05-29 1991-01-21 Asea Atom Ab Anordning vid akustiska saendare
SE467081B (sv) * 1990-09-28 1992-05-18 Asea Atom Ab Drivpaket ingaaende i akustiska saendare

Also Published As

Publication number Publication date
WO1993005624A1 (en) 1993-03-18
EP0601110B1 (en) 1996-05-22
US5457752A (en) 1995-10-10
CN1069846A (zh) 1993-03-10
EP0601110A1 (en) 1994-06-15
SE9102474L (sv) 1993-03-01
SE468967B (sv) 1993-04-19

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