CN103487067B - 利用波分复用技术消减干涉路径散射、反射光干扰的方法与系统 - Google Patents
利用波分复用技术消减干涉路径散射、反射光干扰的方法与系统 Download PDFInfo
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- CN103487067B CN103487067B CN201310473672.XA CN201310473672A CN103487067B CN 103487067 B CN103487067 B CN 103487067B CN 201310473672 A CN201310473672 A CN 201310473672A CN 103487067 B CN103487067 B CN 103487067B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims abstract description 55
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35383—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques
- G01D5/35387—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques using wavelength division multiplexing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
- G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0025—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of elongated objects, e.g. pipes, masts, towers or railways
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
- G08B13/124—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence with the breaking or disturbance being optically detected, e.g. optical fibers in the perimeter fence
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2861—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using fibre optic delay lines and optical elements associated with them, e.g. for use in signal processing, e.g. filtering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Optical Transform (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims (2)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310473672.XA CN103487067B (zh) | 2013-10-12 | 2013-10-12 | 利用波分复用技术消减干涉路径散射、反射光干扰的方法与系统 |
PCT/CN2014/088326 WO2015051758A1 (zh) | 2013-10-12 | 2014-10-10 | 利用波分复用技术消减干涉路径散、反射光干扰的方法与系统 |
US15/028,865 US10024697B2 (en) | 2013-10-12 | 2014-10-10 | Method and system using wavelength division multiplexing for eliminating and reducing light diffusion and light reflection interference in interference path |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310473672.XA CN103487067B (zh) | 2013-10-12 | 2013-10-12 | 利用波分复用技术消减干涉路径散射、反射光干扰的方法与系统 |
Publications (2)
Publication Number | Publication Date |
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CN103487067A CN103487067A (zh) | 2014-01-01 |
CN103487067B true CN103487067B (zh) | 2016-05-11 |
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CN201310473672.XA Active CN103487067B (zh) | 2013-10-12 | 2013-10-12 | 利用波分复用技术消减干涉路径散射、反射光干扰的方法与系统 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10024697B2 (zh) |
CN (1) | CN103487067B (zh) |
WO (1) | WO2015051758A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103487067B (zh) | 2013-10-12 | 2016-05-11 | 复旦大学 | 利用波分复用技术消减干涉路径散射、反射光干扰的方法与系统 |
CN106664109B (zh) * | 2014-07-18 | 2019-04-23 | 华为技术有限公司 | 一种通信装置、系统及处理信号的方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992003704A2 (en) * | 1990-08-28 | 1992-03-05 | The Boeing Company | Encoded surface position sensor |
CN101561536A (zh) * | 2008-04-16 | 2009-10-21 | 中国科学院半导体研究所 | 一种抗振动与噪声干扰的光纤传感波长解调系统 |
CN101813742A (zh) * | 2010-04-01 | 2010-08-25 | 复旦大学 | 利用光纤对电网高压局部放电进行探测及定位的方法 |
CN102003971A (zh) * | 2010-10-15 | 2011-04-06 | 复旦大学 | 一种消除光纤传感器中背向散射光影响的方法 |
CN103115633A (zh) * | 2013-01-29 | 2013-05-22 | 复旦大学 | 利用相位生成载波降低干涉路径散(反)射光干扰的方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4973169A (en) * | 1987-06-24 | 1990-11-27 | Martin Marietta Corporation | Method and apparatus for securing information communicated through optical fibers |
GB8826487D0 (en) * | 1988-11-11 | 1988-12-14 | Health Lab Service Board | Optical determination of velocity |
GB9821956D0 (en) * | 1998-10-09 | 1998-12-02 | Univ Southampton | Novel system to detect disturbance in optical fibres & cables |
WO2003084007A1 (fr) * | 2002-03-28 | 2003-10-09 | Fujitsu Limited | Dispositif optique a fonction de compensation de perte et amplificateur optique de compensation de perte |
CN102117525A (zh) | 2010-09-20 | 2011-07-06 | 北京邮电大学 | 一种光纤入侵检测系统 |
CN102064884B (zh) | 2010-11-25 | 2013-06-12 | 复旦大学 | 基于波分复用的长距离分布式光纤定位干涉系统 |
CN202101683U (zh) | 2011-05-18 | 2012-01-04 | 东南大学 | 连续光波分复用型长距离分布式扰动定位装置 |
CN102322879B (zh) | 2011-05-18 | 2013-07-31 | 东南大学 | 连续光波分复用型长距离分布式扰动定位装置及方法 |
CN102496231B (zh) | 2011-11-25 | 2014-01-15 | 北京航天易联科技发展有限公司 | 长距离干线安全光纤波分复用式预警系统 |
CN103487067B (zh) | 2013-10-12 | 2016-05-11 | 复旦大学 | 利用波分复用技术消减干涉路径散射、反射光干扰的方法与系统 |
-
2013
- 2013-10-12 CN CN201310473672.XA patent/CN103487067B/zh active Active
-
2014
- 2014-10-10 US US15/028,865 patent/US10024697B2/en active Active
- 2014-10-10 WO PCT/CN2014/088326 patent/WO2015051758A1/zh active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992003704A2 (en) * | 1990-08-28 | 1992-03-05 | The Boeing Company | Encoded surface position sensor |
CN101561536A (zh) * | 2008-04-16 | 2009-10-21 | 中国科学院半导体研究所 | 一种抗振动与噪声干扰的光纤传感波长解调系统 |
CN101813742A (zh) * | 2010-04-01 | 2010-08-25 | 复旦大学 | 利用光纤对电网高压局部放电进行探测及定位的方法 |
CN102003971A (zh) * | 2010-10-15 | 2011-04-06 | 复旦大学 | 一种消除光纤传感器中背向散射光影响的方法 |
CN103115633A (zh) * | 2013-01-29 | 2013-05-22 | 复旦大学 | 利用相位生成载波降低干涉路径散(反)射光干扰的方法 |
Also Published As
Publication number | Publication date |
---|---|
US20160252371A1 (en) | 2016-09-01 |
WO2015051758A1 (zh) | 2015-04-16 |
CN103487067A (zh) | 2014-01-01 |
US10024697B2 (en) | 2018-07-17 |
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Application publication date: 20140101 Assignee: Dongguan advanced optical fiber Application Technology Research Institute Co.,Ltd. Assignor: FUDAN University Contract record no.: X2021310000051 Denomination of invention: Method and system for reducing interference path scattering and reflected light interference by wavelength division multiplexing technology Granted publication date: 20160511 License type: Exclusive License Record date: 20211221 |
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