NO971972L - Hydrofon, samt fremgangsmåte for fremstilling av denne - Google Patents
Hydrofon, samt fremgangsmåte for fremstilling av denneInfo
- Publication number
- NO971972L NO971972L NO971972A NO971972A NO971972L NO 971972 L NO971972 L NO 971972L NO 971972 A NO971972 A NO 971972A NO 971972 A NO971972 A NO 971972A NO 971972 L NO971972 L NO 971972L
- Authority
- NO
- Norway
- Prior art keywords
- hydrophone
- making
- well
- Prior art date
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9605485A FR2748183B1 (fr) | 1996-04-29 | 1996-04-29 | Hydrophone et procede pour sa fabrication |
Publications (2)
Publication Number | Publication Date |
---|---|
NO971972D0 NO971972D0 (no) | 1997-04-28 |
NO971972L true NO971972L (no) | 1997-10-30 |
Family
ID=9491763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO971972A NO971972L (no) | 1996-04-29 | 1997-04-28 | Hydrofon, samt fremgangsmåte for fremstilling av denne |
Country Status (6)
Country | Link |
---|---|
US (1) | US5838637A (no) |
JP (1) | JPH1051880A (no) |
DE (1) | DE19717903A1 (no) |
FR (1) | FR2748183B1 (no) |
GB (1) | GB2312808B (no) |
NO (1) | NO971972L (no) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2095739A1 (en) * | 1992-05-27 | 1993-11-28 | Michael J. Mcnutt | Charge skimming and variable integration time in focal plane arrays |
FR2792802B1 (fr) * | 1999-04-26 | 2001-05-18 | Inst Francais Du Petrole | Hydrophone pour la reception des ondes acoustiques ou sismiques |
FR2796514B1 (fr) * | 1999-07-13 | 2001-08-17 | Inst Francais Du Petrole | Hydrophone a faible taux de distorsion |
GB0020072D0 (en) * | 2000-08-16 | 2000-10-04 | Geco As | A housing for a seismic sensing element and a seismic sensor |
DE10125272A1 (de) * | 2001-05-23 | 2002-11-28 | Valeo Schalter & Sensoren Gmbh | Verfahren zur Herstellung eines Ultraschallsensors sowie Ultraschallsensor |
FR2832019B1 (fr) | 2001-11-02 | 2004-01-02 | Inst Francais Du Petrole | Hydrophone a inhibition automatique en cas de depassement d'un seuil d'immersion ajustable |
FR2832018B1 (fr) * | 2001-11-02 | 2004-02-13 | Inst Francais Du Petrole | Hydrophone a inhibition automatique en cas de depassement d'un seuil d'immersion ajustable |
US7823643B2 (en) | 2006-06-05 | 2010-11-02 | Fmc Technologies Inc. | Insulation shroud with internal support structure |
CN102426054B (zh) * | 2011-10-29 | 2013-01-16 | 中北大学 | 单片集成复合量程矢量水听器 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES353912A1 (es) * | 1967-05-16 | 1970-03-01 | Inst Francais Du Petrole | Captador de presiones. |
FR2122675A5 (no) * | 1971-01-19 | 1972-09-01 | Inst Francais Du Petrole | |
US3832762A (en) * | 1972-05-22 | 1974-09-03 | Texas Instruments Inc | Method of producing a matched parameter acceleration cancelling hydrophone |
US3970878A (en) * | 1975-03-31 | 1976-07-20 | Teledyne Exploration Company | Piezoelectric transducer unit and hydrophone assembly |
US4184093A (en) * | 1978-07-07 | 1980-01-15 | The United States Of America As Represented By The Secretary Of The Navy | Piezoelectric polymer rectangular flexural plate hydrophone |
US4336639A (en) * | 1980-03-31 | 1982-06-29 | Teledyne Exploration Company | Method of making a seismic apparatus |
CA1157142A (en) * | 1981-01-09 | 1983-11-15 | Robert G. Dunn | Diaphragm design for a bender type acoustic sensor |
US4926397A (en) * | 1989-11-13 | 1990-05-15 | Teledyne Exploration | Depth alarm for a seismic sensor |
DE4226485C1 (de) * | 1992-08-11 | 1993-12-23 | Prakla Seismos Gmbh | Hydrophon, Verfahren zu seiner Herstellung und Verwendung |
US5675556A (en) * | 1995-10-19 | 1997-10-07 | Syntron, Inc. | Hydrophone structure and method |
US5677894A (en) * | 1995-12-27 | 1997-10-14 | Syntron Inc. | Hydrophone structure with center pin |
-
1996
- 1996-04-29 FR FR9605485A patent/FR2748183B1/fr not_active Expired - Fee Related
-
1997
- 1997-04-24 GB GB9708405A patent/GB2312808B/en not_active Expired - Fee Related
- 1997-04-28 NO NO971972A patent/NO971972L/no not_active Application Discontinuation
- 1997-04-28 JP JP9111258A patent/JPH1051880A/ja not_active Ceased
- 1997-04-28 DE DE19717903A patent/DE19717903A1/de not_active Withdrawn
- 1997-04-29 US US08/848,184 patent/US5838637A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2312808B (en) | 1999-09-08 |
GB9708405D0 (en) | 1997-06-18 |
JPH1051880A (ja) | 1998-02-20 |
DE19717903A1 (de) | 1997-11-20 |
FR2748183A1 (fr) | 1997-10-31 |
US5838637A (en) | 1998-11-17 |
FR2748183B1 (fr) | 1998-05-22 |
NO971972D0 (no) | 1997-04-28 |
GB2312808A (en) | 1997-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |