DE69926749T2 - Gefaltete sagnac-sensoranordnung - Google Patents
Gefaltete sagnac-sensoranordnung Download PDFInfo
- Publication number
- DE69926749T2 DE69926749T2 DE69926749T DE69926749T DE69926749T2 DE 69926749 T2 DE69926749 T2 DE 69926749T2 DE 69926749 T DE69926749 T DE 69926749T DE 69926749 T DE69926749 T DE 69926749T DE 69926749 T2 DE69926749 T2 DE 69926749T2
- Authority
- DE
- Germany
- Prior art keywords
- light
- optical
- coupler
- optical path
- fiber
- 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
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Gyroscopes (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Air Bags (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8067798P | 1998-04-03 | 1998-04-03 | |
| US80677P | 1998-04-03 | ||
| US09/253,203 US6034924A (en) | 1998-04-03 | 1999-02-19 | Folded sagnac sensor array |
| US253203 | 1999-02-19 | ||
| PCT/US1999/006829 WO1999052323A1 (en) | 1998-04-03 | 1999-03-29 | Folded sagnac sensor array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69926749D1 DE69926749D1 (de) | 2005-09-22 |
| DE69926749T2 true DE69926749T2 (de) | 2006-06-08 |
Family
ID=26763796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69926749T Expired - Fee Related DE69926749T2 (de) | 1998-04-03 | 1999-03-29 | Gefaltete sagnac-sensoranordnung |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6034924A (enExample) |
| EP (1) | EP1084590B1 (enExample) |
| JP (1) | JP4181748B2 (enExample) |
| AU (1) | AU3455399A (enExample) |
| DE (1) | DE69926749T2 (enExample) |
| NO (1) | NO329939B1 (enExample) |
| WO (1) | WO1999052323A1 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008016973A1 (de) * | 2008-04-03 | 2009-10-29 | Precitec Optronik Gmbh | Interferometer und Verfahren zum Betreiben eines Interferometers |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5933555A (en) * | 1997-05-01 | 1999-08-03 | Alliance Fiber Optics Products, Inc. | Optical recirculation depolarizer and method of depolarizing light |
| US6278657B1 (en) * | 1998-04-03 | 2001-08-21 | The Board Of Trustees Of The Leland Stanford Junior University | Folded sagnac sensor array |
| US6667935B2 (en) | 1998-04-03 | 2003-12-23 | The Board Of Trustees Of The Leland Stanford Junior University | Apparatus and method for processing optical signals from two delay coils to increase the dynamic range of a sagnac-based fiber optic sensor array |
| US6678211B2 (en) | 1998-04-03 | 2004-01-13 | The Board Of Trustees Of The Leland Stanford Junior University | Amplified tree structure technology for fiber optic sensor arrays |
| US6429965B1 (en) * | 1998-11-02 | 2002-08-06 | The Board Of Trustees The Leland Stanford Junior University | Polarization and wavelength stable superfluorescent sources |
| KR100305390B1 (ko) * | 1999-05-04 | 2001-09-13 | 윤덕용 | 배열형 사그냑 간섭계 음향센서 및 음향신호 검출방법 |
| US6282334B1 (en) * | 1999-05-13 | 2001-08-28 | Litton Systems, Inc. | Large scale WDM/TDM sensor array employing erbium-doped fiber amplifiers |
| US6728165B1 (en) | 1999-10-29 | 2004-04-27 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| US6724319B1 (en) | 1999-10-29 | 2004-04-20 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| KR100850401B1 (ko) * | 2001-08-10 | 2008-08-04 | 더 보드 오브 트러스티즈 오프 더 리랜드 스탠포드 쥬니어 유니버시티 | 두 개의 지연 코일 사냑-형 센서 어레이 |
| CA2457325C (en) * | 2001-08-10 | 2010-10-26 | The Board Of Trustees Of The Leland Stanford Junior University | Amplified tree structure technology for fiber optic sensor arrays |
| US6782160B2 (en) * | 2002-04-10 | 2004-08-24 | Lockheed Martin Corporation | Optical-signal coupler and related method |
| US7019840B2 (en) * | 2003-06-17 | 2006-03-28 | Seagate Technology Llc | Dual-beam interferometer for ultra-smooth surface topographical measurements |
| JP4196407B2 (ja) * | 2004-06-30 | 2008-12-17 | 横河電機株式会社 | 可変光信号遅延器およびこれを用いた可変光信号遅延装置 |
| JP2006208080A (ja) * | 2005-01-26 | 2006-08-10 | Hitachi Cable Ltd | 光ファイバ振動センサ |
| US8015878B2 (en) * | 2006-10-05 | 2011-09-13 | Delaware State University Foundation, Inc. | Fiber optics sound detector |
| JP4724798B2 (ja) * | 2007-06-25 | 2011-07-13 | 独立行政法人海洋研究開発機構 | 光ファイバ広域センサシステム |
| US7746476B2 (en) * | 2007-07-11 | 2010-06-29 | Emcore Corporation | Fiber optic gyroscope |
| US8223340B2 (en) | 2007-11-15 | 2012-07-17 | The Board Of Trustees Of The Leland Stanford Junior University | Laser-driven optical gyroscope having a non-negligible source coherence length |
| IL205351A (en) * | 2009-04-28 | 2017-05-29 | Univ Leland Stanford Junior | Optical gyroscope driven by a laser having an indelible source coherence length |
| US8773665B1 (en) | 2011-04-01 | 2014-07-08 | Emcore Corporation | Compact fiber optic gyroscope |
| US8823946B1 (en) | 2011-06-13 | 2014-09-02 | Emcore Corporation | Multi-axis fiber optic gyroscope with single light source |
| US8798405B2 (en) | 2011-08-04 | 2014-08-05 | Emcore Corporation | Method of making a fiber optic gyroscope |
| US9234790B2 (en) | 2012-03-19 | 2016-01-12 | The Board Of Trustees Of The Leland Stanford Junior University | Apparatus and methods utilizing optical sensors operating in the reflection mode |
| US20140217269A1 (en) * | 2013-02-01 | 2014-08-07 | The Board Of Trustees Of The Leland Stanford Junior University | Coupled waveguides for slow light sensor applications |
| WO2018055605A1 (en) * | 2016-09-26 | 2018-03-29 | Ixa Amc Office / Academic Medical Center | High-resolution integrated-optics-based spectrometer |
| AU2018329866B2 (en) * | 2017-09-06 | 2023-07-06 | The Commonwealth Of Australia | Sensor arrangement |
| CN108318123A (zh) * | 2017-12-14 | 2018-07-24 | 中国船舶重工集团公司第七〇五研究所 | 一种水下声基阵互辐射阻抗的近场声层析测试方法 |
| JP7339501B2 (ja) * | 2019-05-28 | 2023-09-06 | 富士通株式会社 | 振動測定装置、振動測定方法、および振動測定プログラム |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1124384A (en) * | 1979-08-09 | 1982-05-25 | Paolo G. Cielo | Stable fiber-optic hydrophone |
| US4375680A (en) * | 1981-01-16 | 1983-03-01 | Mcdonnell Douglas Corporation | Optical acoustic sensor |
| US4440498A (en) * | 1981-11-13 | 1984-04-03 | The United States Of America As Represented By The Secretary Of The Navy | Optical fiber gyroscope with (3×3) directional coupler |
| FR2541767B1 (fr) * | 1983-02-25 | 1986-11-21 | Thomson Csf | Hydrophone a fibre optique |
| US4545253A (en) * | 1983-08-29 | 1985-10-08 | Exxon Production Research Co. | Fiber optical modulator and data multiplexer |
| US4699513A (en) * | 1985-02-08 | 1987-10-13 | Stanford University | Distributed sensor and method using coherence multiplexing of fiber-optic interferometric sensors |
| US5311592A (en) * | 1986-06-11 | 1994-05-10 | Mcdonnell Douglas Corporation | Sagnac interferometer based secure communication system |
| US4752132A (en) * | 1986-10-24 | 1988-06-21 | Litton Systems, Inc. | Low power control interferometric sensor with wide dynamic range |
| US4799752A (en) * | 1987-09-21 | 1989-01-24 | Litton Systems, Inc. | Fiber optic gradient hydrophone and method of using same |
| GB8825481D0 (en) * | 1988-11-01 | 1988-12-07 | British Telecomm | Interferrometer |
| US5373487A (en) * | 1993-05-17 | 1994-12-13 | Mason & Hanger National, Inc. | Distributed acoustic sensor |
| US5636022A (en) * | 1994-07-29 | 1997-06-03 | Litton Systems, Inc. | Closed loop unmodulated fiber optic rate gyroscope with 3×3 coupler and method |
| US5636021A (en) * | 1995-06-02 | 1997-06-03 | Udd; Eric | Sagnac/Michelson distributed sensing systems |
| US5866898A (en) * | 1996-07-12 | 1999-02-02 | The Board Of Trustees Of The Leland Stanford Junior University | Time domain multiplexed amplified sensor array with improved signal to noise ratios |
-
1999
- 1999-02-19 US US09/253,203 patent/US6034924A/en not_active Expired - Lifetime
- 1999-03-29 JP JP2000542952A patent/JP4181748B2/ja not_active Expired - Fee Related
- 1999-03-29 EP EP99916185A patent/EP1084590B1/en not_active Expired - Lifetime
- 1999-03-29 DE DE69926749T patent/DE69926749T2/de not_active Expired - Fee Related
- 1999-03-29 AU AU34553/99A patent/AU3455399A/en not_active Abandoned
- 1999-03-29 WO PCT/US1999/006829 patent/WO1999052323A1/en not_active Ceased
-
2000
- 2000-10-02 NO NO20004955A patent/NO329939B1/no not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008016973A1 (de) * | 2008-04-03 | 2009-10-29 | Precitec Optronik Gmbh | Interferometer und Verfahren zum Betreiben eines Interferometers |
| DE102008016973B4 (de) * | 2008-04-03 | 2009-12-31 | Precitec Optronik Gmbh | Interferometer und Verfahren zum Betreiben eines Interferometers |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1084590A1 (en) | 2001-03-21 |
| WO1999052323A8 (en) | 2000-03-23 |
| AU3455399A (en) | 1999-10-25 |
| NO20004955D0 (no) | 2000-10-02 |
| WO1999052323A1 (en) | 1999-10-14 |
| JP4181748B2 (ja) | 2008-11-19 |
| NO20004955L (no) | 2000-11-30 |
| DE69926749D1 (de) | 2005-09-22 |
| EP1084590A4 (en) | 2003-03-19 |
| NO329939B1 (no) | 2011-01-24 |
| US6034924A (en) | 2000-03-07 |
| JP2002511565A (ja) | 2002-04-16 |
| EP1084590B1 (en) | 2005-08-17 |
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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 |