IL128453A - Method and device for investigating fiber optic detector Interference waves in multi-channel applications - Google Patents
Method and device for investigating fiber optic detector Interference waves in multi-channel applicationsInfo
- Publication number
- IL128453A IL128453A IL12845399A IL12845399A IL128453A IL 128453 A IL128453 A IL 128453A IL 12845399 A IL12845399 A IL 12845399A IL 12845399 A IL12845399 A IL 12845399A IL 128453 A IL128453 A IL 128453A
- Authority
- IL
- Israel
- Prior art keywords
- signal
- digital down
- digital
- down converter
- converter
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 22
- 238000012545 processing Methods 0.000 claims abstract description 51
- 230000010287 polarization Effects 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 13
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- 230000003139 buffering effect Effects 0.000 claims 1
- 230000010363 phase shift Effects 0.000 description 10
- 238000003491 array Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005562 fading Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/021,014 US5959294A (en) | 1998-02-10 | 1998-02-10 | Method and apparatus for interrogation of fiber optic interferometric sensors in multi-channel applications |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL128453A0 IL128453A0 (en) | 2000-01-31 |
| IL128453A true IL128453A (en) | 2002-03-10 |
Family
ID=21801845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL12845399A IL128453A (en) | 1998-02-10 | 1999-02-09 | Method and device for investigating fiber optic detector Interference waves in multi-channel applications |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5959294A (de) |
| EP (1) | EP0936453B1 (de) |
| JP (1) | JP4091196B2 (de) |
| KR (1) | KR19990072550A (de) |
| AU (1) | AU746168B2 (de) |
| CA (1) | CA2259548A1 (de) |
| DE (1) | DE69916677T2 (de) |
| IL (1) | IL128453A (de) |
| NO (1) | NO990612L (de) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6134281A (en) * | 1998-02-10 | 2000-10-17 | Litton Systems, Inc. | Method and apparatus for calibration of a signal processing system utilizing digital down converters |
| CA2320394A1 (en) * | 1999-10-29 | 2001-04-29 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| CA2320453A1 (en) * | 1999-10-29 | 2001-04-29 | Litton Systems, Inc. | Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors |
| US6346985B1 (en) * | 1999-10-29 | 2002-02-12 | Litton Systems, Inc. | Optical method for the transduction of remote arrays of electromechanical sensors |
| US6314811B1 (en) * | 2000-01-24 | 2001-11-13 | Litton Systems Inc. | Acoustic sensor module design and fabrication process |
| US6825714B2 (en) * | 2000-07-24 | 2004-11-30 | Litton Systems, Inc. | Multichannel interferometer with phase generated carrier demodulation and quadrature error correction |
| US6822744B1 (en) * | 2001-05-25 | 2004-11-23 | The Board Of Governors For Higher Education, State Of Rhode Island And Providence Plantations | Modular interferometric imaging method apparatus and system |
| US7346313B2 (en) | 2002-03-04 | 2008-03-18 | Cafarella John H | Calibration of I-Q balance in transceivers |
| US6778720B1 (en) | 2002-04-02 | 2004-08-17 | Optiphase, Inc. | Dual slope fiber optic array interrogator |
| US7424307B2 (en) | 2005-03-31 | 2008-09-09 | Adc Telecommunications, Inc. | Loss of page synchronization |
| US7474891B2 (en) | 2005-03-31 | 2009-01-06 | Adc Telecommunications, Inc. | Dynamic digital up and down converters |
| US7593450B2 (en) | 2005-03-31 | 2009-09-22 | Adc Telecommunications, Inc. | Dynamic frequency hopping |
| US7423988B2 (en) | 2005-03-31 | 2008-09-09 | Adc Telecommunications, Inc. | Dynamic reconfiguration of resources through page headers |
| US7640019B2 (en) | 2005-03-31 | 2009-12-29 | Adc Telecommunications, Inc. | Dynamic reallocation of bandwidth and modulation protocols |
| US7398106B2 (en) | 2005-03-31 | 2008-07-08 | Adc Telecommunications, Inc. | Dynamic readjustment of power |
| US7583735B2 (en) | 2005-03-31 | 2009-09-01 | Adc Telecommunications, Inc. | Methods and systems for handling underflow and overflow in a software defined radio |
| CA2664010C (en) * | 2006-06-30 | 2015-09-15 | China National Petroleum Corporation | An optical fiber control system for safety early-warning |
| EP2131159B1 (de) * | 2008-06-04 | 2016-04-13 | Sercel | Interferometrische, faseroptische Sensoranordnung mit verbesserter Multiplexing-Dichte |
| CN104833721B (zh) * | 2015-05-05 | 2017-07-25 | 钢研纳克检测技术有限公司 | 用于超声波探伤仪的闸门内回波增益独立控制方法 |
| KR102540273B1 (ko) * | 2020-11-20 | 2023-06-07 | 건국대학교 글로컬산학협력단 | 반도체 이광자 흡수 현상을 이용한 레이저 펄스폭 측정 장치 |
| CN114866184B (zh) * | 2022-03-07 | 2024-01-16 | 笔特科技(深圳)有限公司 | 通信与传感信号一体融合方法、分解方法及相关装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4649529A (en) * | 1985-12-02 | 1987-03-10 | Exxon Production Research Co. | Multi-channel fiber optic sensor system |
| US4752132A (en) * | 1986-10-24 | 1988-06-21 | Litton Systems, Inc. | Low power control interferometric sensor with wide dynamic range |
| US5555086A (en) * | 1991-05-31 | 1996-09-10 | Litton Systems, Inc. | Coherence multiplexed interferometric signal processing system and method |
| US5493581A (en) * | 1992-08-14 | 1996-02-20 | Harris Corporation | Digital down converter and method |
| US5448058A (en) * | 1993-04-27 | 1995-09-05 | Litton Systems, Inc. | Optical signal detection apparatus and method for preventing polarization signal fading in optical fiber interferometric sensor systems |
| GB9605144D0 (en) * | 1996-03-11 | 1996-05-08 | Sensor Dynamics Ltd | Apparatus for sensing one or more parameters |
-
1998
- 1998-02-10 US US09/021,014 patent/US5959294A/en not_active Expired - Lifetime
-
1999
- 1999-02-09 NO NO990612A patent/NO990612L/no unknown
- 1999-02-09 CA CA002259548A patent/CA2259548A1/en not_active Abandoned
- 1999-02-09 IL IL12845399A patent/IL128453A/en not_active IP Right Cessation
- 1999-02-09 AU AU16366/99A patent/AU746168B2/en not_active Ceased
- 1999-02-10 KR KR1019990004622A patent/KR19990072550A/ko not_active Ceased
- 1999-02-10 DE DE69916677T patent/DE69916677T2/de not_active Expired - Fee Related
- 1999-02-10 EP EP99300975A patent/EP0936453B1/de not_active Expired - Lifetime
- 1999-02-10 JP JP03348199A patent/JP4091196B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU1636699A (en) | 1999-08-26 |
| CA2259548A1 (en) | 1999-08-10 |
| EP0936453A2 (de) | 1999-08-18 |
| AU746168B2 (en) | 2002-04-18 |
| JP4091196B2 (ja) | 2008-05-28 |
| KR19990072550A (ko) | 1999-09-27 |
| NO990612D0 (no) | 1999-02-09 |
| DE69916677T2 (de) | 2004-09-23 |
| US5959294A (en) | 1999-09-28 |
| NO990612L (no) | 1999-08-11 |
| EP0936453A3 (de) | 2000-07-26 |
| IL128453A0 (en) | 2000-01-31 |
| JP2000028429A (ja) | 2000-01-28 |
| DE69916677D1 (de) | 2004-06-03 |
| EP0936453B1 (de) | 2004-04-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| EXP | Patent expired |