DE3683023D1 - Akustischer wandler. - Google Patents
Akustischer wandler.Info
- Publication number
- DE3683023D1 DE3683023D1 DE8686309520T DE3683023T DE3683023D1 DE 3683023 D1 DE3683023 D1 DE 3683023D1 DE 8686309520 T DE8686309520 T DE 8686309520T DE 3683023 T DE3683023 T DE 3683023T DE 3683023 D1 DE3683023 D1 DE 3683023D1
- Authority
- DE
- Germany
- Prior art keywords
- barrier
- sub
- central region
- potting material
- coaxial cable
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 230000004888 barrier function Effects 0.000 abstract 2
- 238000004382 potting Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
- G01V1/201—Constructional details of seismic cables, e.g. streamers
- G01V1/208—Constructional details of seismic cables, e.g. streamers having a continuous structure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S310/00—Electrical generator or motor structure
- Y10S310/80—Piezoelectric polymers, e.g. PVDF
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Acoustics & Sound (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geophysics (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measuring Fluid Pressure (AREA)
- Surgical Instruments (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Electrophonic Musical Instruments (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8529976 | 1985-12-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3683023D1 true DE3683023D1 (de) | 1992-01-30 |
Family
ID=10589288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686309520T Expired - Fee Related DE3683023D1 (de) | 1985-12-05 | 1986-12-05 | Akustischer wandler. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4794295A (de) |
EP (1) | EP0225798B1 (de) |
JP (1) | JPS62176300A (de) |
AT (1) | ATE70632T1 (de) |
CA (2) | CA1284210C (de) |
DE (1) | DE3683023D1 (de) |
ES (1) | ES2027963T3 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5448232A (en) * | 1989-05-03 | 1995-09-05 | Mitron Systems Corporation | Roadway sensors and method of installing same |
JPH03253273A (ja) * | 1990-03-01 | 1991-11-12 | Canon Inc | 振動波モータの電線接続装置 |
US5214967A (en) * | 1991-03-08 | 1993-06-01 | Helm Instrument Co., Inc. | Cylindrical piezoelectric load sensor |
US5554907A (en) * | 1992-05-08 | 1996-09-10 | Mitron Systems Corporation | Vehicle speed measurement apparatus |
US5471192A (en) * | 1994-01-24 | 1995-11-28 | Dash; Glen | Sound producing device stimulated by petting |
GB9402878D0 (en) * | 1994-02-15 | 1994-04-06 | Colebrand Ltd | Piezo-electric transducer |
US5646470A (en) * | 1994-04-01 | 1997-07-08 | Benthos, Inc. | Acoustic transducer |
US5552657A (en) * | 1995-02-14 | 1996-09-03 | Ocean Power Technologies, Inc. | Generation of electrical energy by weighted, resilient piezoelectric elements |
US6431591B1 (en) * | 1999-02-26 | 2002-08-13 | Wacker Silicones Corporation | Airbag sensor deactivator suitable for use in smart airbag system |
WO2003036247A1 (en) * | 2001-10-22 | 2003-05-01 | Microjenics, Inc. | Pressure-sensitive sensor and monitor using the pressure-sensitive sensor |
EP1576342A2 (de) * | 2002-11-12 | 2005-09-21 | CiDra Corporation | Apparat mit einer reihe von aufsteckbaren piezoelektrischen film sensoren zur messung von parametern eines prozessflusses in einem rohr |
WO2005015135A2 (en) * | 2003-08-08 | 2005-02-17 | Cidra Corporation | Piezocable based sensor for measuring unsteady pressures inside a pipe |
US7367239B2 (en) | 2004-03-23 | 2008-05-06 | Cidra Corporation | Piezocable based sensor for measuring unsteady pressures inside a pipe |
WO2010120258A2 (en) * | 2005-03-17 | 2010-10-21 | Cidra Corporation | An apparatus and method of processing data to improve the performance of a flow monitoring system |
US7249525B1 (en) | 2005-06-22 | 2007-07-31 | Cidra Corporation | Apparatus for measuring parameters of a fluid in a lined pipe |
US7503227B2 (en) * | 2005-07-13 | 2009-03-17 | Cidra Corporate Services, Inc | Method and apparatus for measuring parameters of a fluid flow using an array of sensors |
US7675819B2 (en) * | 2005-10-17 | 2010-03-09 | The Johns Hopkins University | Volumetric passive sonobuoy array of polyvinylidene fluoride (PVDF) wires |
WO2011035123A1 (en) * | 2009-09-17 | 2011-03-24 | Quantum Technology Sciences, Inc. (Qtsi) | Systems and methods for acquiring and characterizing time varying signals of interest |
CN102623627B (zh) * | 2012-04-06 | 2014-06-11 | 天津大学 | 新型压电复合材料 |
CN102610740B (zh) * | 2012-04-06 | 2014-02-19 | 天津大学 | 螺旋并联高性能压电复合材料的制备方法 |
US9772220B1 (en) | 2013-12-06 | 2017-09-26 | Harris Corporation | Hydrophone |
WO2019126477A2 (en) * | 2017-12-22 | 2019-06-27 | Lawrence Fishman | Device and method for sensing underwater sound pressure |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2127311A5 (de) * | 1971-03-03 | 1972-10-13 | Inst Francais Du Petrole | |
FR2145099A5 (de) * | 1971-07-08 | 1973-02-16 | Inst Francais Du Petrole | |
US3750127A (en) * | 1971-10-28 | 1973-07-31 | Gen Dynamics Corp | Method and means for sensing strain with a piezoelectric strain sensing element |
US3862477A (en) * | 1973-08-16 | 1975-01-28 | Gen Dynamics Corp | Poling process for linear piezoelectric strain transducers |
US4183010A (en) * | 1975-12-08 | 1980-01-08 | Gte Sylvania Incorporated | Pressure compensating coaxial line hydrophone and method |
US4322877A (en) * | 1978-09-20 | 1982-04-06 | Minnesota Mining And Manufacturing Company | Method of making piezoelectric polymeric acoustic transducer |
US4300219A (en) * | 1979-04-26 | 1981-11-10 | Raytheon Company | Bowed elastomeric window |
FR2458909B1 (de) * | 1979-06-13 | 1982-12-31 | Thomson Csf | |
US4509947A (en) * | 1982-08-02 | 1985-04-09 | Medtronic, Inc. | Self-cleaning drug delivery catheter and storage bladder |
US4568851A (en) * | 1984-09-11 | 1986-02-04 | Raychem Corporation | Piezoelectric coaxial cable having a helical inner conductor |
US4638207A (en) * | 1986-03-19 | 1987-01-20 | Pennwalt Corporation | Piezoelectric polymeric film balloon speaker |
-
1986
- 1986-12-04 CA CA000524503A patent/CA1284210C/en not_active Expired - Fee Related
- 1986-12-04 CA CA000524504A patent/CA1288612C/en not_active Expired - Lifetime
- 1986-12-05 DE DE8686309520T patent/DE3683023D1/de not_active Expired - Fee Related
- 1986-12-05 ES ES198686309520T patent/ES2027963T3/es not_active Expired - Lifetime
- 1986-12-05 EP EP86309520A patent/EP0225798B1/de not_active Expired - Lifetime
- 1986-12-05 AT AT86309520T patent/ATE70632T1/de not_active IP Right Cessation
- 1986-12-05 JP JP61291392A patent/JPS62176300A/ja active Pending
- 1986-12-05 US US06/938,293 patent/US4794295A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0225798B1 (de) | 1991-12-18 |
EP0225798A2 (de) | 1987-06-16 |
US4794295A (en) | 1988-12-27 |
JPS62176300A (ja) | 1987-08-03 |
CA1284210C (en) | 1991-05-14 |
ES2027963T3 (es) | 1992-07-01 |
ATE70632T1 (de) | 1992-01-15 |
CA1288612C (en) | 1991-09-10 |
EP0225798A3 (en) | 1989-01-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |