FI931381A - Akustisk saendare - Google Patents
Akustisk saendare Download PDFInfo
- Publication number
- FI931381A FI931381A FI931381A FI931381A FI931381A FI 931381 A FI931381 A FI 931381A FI 931381 A FI931381 A FI 931381A FI 931381 A FI931381 A FI 931381A FI 931381 A FI931381 A FI 931381A
- Authority
- FI
- Finland
- Prior art keywords
- saendare
- akustisk
- akustisk saendare
- 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)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Toys (AREA)
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 (2)
Publication Number | Publication Date |
---|---|
FI931381A true FI931381A (fi) | 1993-03-26 |
FI931381A0 FI931381A0 (fi) | 1993-03-26 |
Family
ID=20380480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI931381A FI931381A0 (fi) | 1990-09-28 | 1993-03-26 | Akustisk saendare |
Country Status (10)
Country | Link |
---|---|
US (1) | US5329499A (fi) |
EP (1) | EP0550684B1 (fi) |
JP (1) | JPH06501596A (fi) |
CN (1) | CN1027949C (fi) |
CA (1) | CA2091892C (fi) |
DE (1) | DE69111459T2 (fi) |
FI (1) | FI931381A0 (fi) |
NO (1) | NO306437B1 (fi) |
SE (1) | SE467081B (fi) |
WO (1) | WO1992006567A1 (fi) |
Families Citing this family (19)
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)
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 |
-
1990
- 1990-09-28 SE SE9003086A patent/SE467081B/sv not_active IP Right Cessation
-
1991
- 1991-09-16 EP EP91919323A patent/EP0550684B1/en not_active Expired - Lifetime
- 1991-09-16 DE DE69111459T patent/DE69111459T2/de not_active Expired - Fee Related
- 1991-09-16 CA CA002091892A patent/CA2091892C/en not_active Expired - Fee Related
- 1991-09-16 JP JP3516563A patent/JPH06501596A/ja active Pending
- 1991-09-16 WO PCT/SE1991/000612 patent/WO1992006567A1/en active IP Right Grant
- 1991-09-16 US US07/989,010 patent/US5329499A/en not_active Expired - Fee Related
- 1991-09-24 CN CN91109361A patent/CN1027949C/zh not_active Expired - Fee Related
-
1993
- 1993-03-26 NO NO931148A patent/NO306437B1/no not_active IP Right Cessation
- 1993-03-26 FI FI931381A patent/FI931381A0/fi unknown
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 |
CA2091892C (en) | 1995-03-14 |
NO931148L (no) | 1993-03-26 |
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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