JP5972403B2 - Tdmおよびwdmベースのfbgセンサアレイシステム - Google Patents
Tdmおよびwdmベースのfbgセンサアレイシステム Download PDFInfo
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- JP5972403B2 JP5972403B2 JP2014560127A JP2014560127A JP5972403B2 JP 5972403 B2 JP5972403 B2 JP 5972403B2 JP 2014560127 A JP2014560127 A JP 2014560127A JP 2014560127 A JP2014560127 A JP 2014560127A JP 5972403 B2 JP5972403 B2 JP 5972403B2
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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
- G01D5/35338—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
- G01D5/35364—Sensor working in reflection using backscattering to detect the measured quantity using inelastic backscattering to detect the measured quantity, e.g. using Brillouin or Raman backscattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Description
本出願は、本出願の譲受人によって保有される以下の米国仮特許出願の優先権の利益を主張し、そのすべてが参照によって本明細書に組み込まれる。
2012年3月2日に出願された、米国仮特許出願第.61/605,902号
t2(i−1)r
Claims (8)
- 選択された波長範囲をカバーする光を放射するための光源と、前記放射された光を増幅するための希土類がドープされたファイバ増幅器と、一連の光パルスを生成するために前記放射された光を変調するための変調器とを有する入力生成器と;
入力として前記一連の光パルスを受け、かつ光の経路に沿って位置付けられるセンサ回折格子のアレイを経て前記光パルスを伝送するために前記入力生成器に結合されるセンサ段であって、前記センサアレイを経るパルスの伝播が時間領域多重化された出力をもたらし、前記時間領域多重化された出力がそれぞれの出力パルスが前記センサアレイのそれぞれの回折格子における前記入力パルスの反射からなる一連の出力パルスからなり、前記センサアレイへの入力、および前記センサアレイから出る前記時間領域多重化された出力の両方を増幅するためのラマン増幅手段を有するセンサ段と;
前記センサアレイからの出力を検知し、かつ前記センサアレイのそれぞれの回折格子の波長出力を再構成するための出力処理段と;
前記システム段を動作させるための制御モジュールと
を有し、
前記センサアレイが、2つ以上の群に属する回折格子を有し、前記センサアレイの出力が時間および波長領域の両方において多重化されるようにそれぞれの群がそれぞれのブラッグ波長により特徴づけられ、
同一の波長を有する少なくともいくつかの回折格子の間の間隔が隣接する検知点の間の必要とされる間隔を上回ることができるように、異なる群の個々の回折格子が重なり合う構成に配列される、
光ファイバセンサシステム。 - 前記センサ段がさらに、前記センサアレイのそれぞれの回折格子の出力を再構成するときの基準時間として前記制御モジュールによる使用のための時間基準信号を提供するように構成される前記センサアレイの上流に接続される時間基準回折格子を有する、請求項1に記載の光ファイバシステム。
- 前記センサ段が、前記センサアレイの出力を較正するために前記時間基準回折格子と前記センサアレイとの間に接続される波長基準デバイスを有する、請求項2に記載の光ファイバシステム。
- 前記波長基準デバイスが、異なる波長を有する複数の温度安定化された回折格子を有し、前記センサ回折格子の波長範囲をカバーする、請求項3に記載の光ファイバシステム。
- 前記出力処理段が、前記センサ段からの前記出力の波長成分を広げて離すための波長拡張手段と、波長拡張後の前記出力をデジタル化するための検知器とを有する、請求項1に記載の光ファイバシステム。
- 前記出力処理段が、前記センサ出力のために波長データを正確に導き出すための較正されたスキャン台をさらに含む、請求項5に記載の光ファイバシステム。
- 前記光源が調整可能なレーザからなり、前記出力処理段が、前記調整可能なレーザの瞬間的な波長に関連する前記センサ出力からの波長データを導き出すように構成される、請求項1に記載の光ファイバシステム。
- 前記光源が、波長可変レーザからなり、前記入力生成段が、前記センサアレイ出力からの波長データを導き出す出力処理段による使用のために前記波長可変レーザの前記瞬間的な波長を測定するための波長測定モジュールを有する、請求項1に記載の光ファイバシステム。
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US201261605902P | 2012-03-02 | 2012-03-02 | |
US61/605,902 | 2012-03-02 | ||
PCT/US2013/028871 WO2013131085A1 (en) | 2012-03-02 | 2013-03-04 | Tdm-and wdm-based fbg sensor array system |
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JP2015508907A JP2015508907A (ja) | 2015-03-23 |
JP5972403B2 true JP5972403B2 (ja) | 2016-08-17 |
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US (1) | US9759585B2 (ja) |
JP (1) | JP5972403B2 (ja) |
WO (1) | WO2013131085A1 (ja) |
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CN103674117B (zh) * | 2013-12-20 | 2016-06-01 | 武汉理工大学 | 基于拉曼散射同时测量全同弱光纤光栅温度与应变的方法及装置 |
GB201503861D0 (en) * | 2015-03-06 | 2015-04-22 | Silixa Ltd | Method and apparatus for optical sensing |
US20170010385A1 (en) * | 2015-07-08 | 2017-01-12 | Schlumberger Technology Corporation | Fiber optic array having densely spaced, weak reflectors |
US10073006B2 (en) * | 2016-04-15 | 2018-09-11 | Viavi Solutions Inc. | Brillouin and rayleigh distributed sensor |
GB2570144A (en) | 2018-01-12 | 2019-07-17 | Ap Sensing Gmbh | High rate fibre optical distributed acoustic sensing |
US10768055B2 (en) | 2018-03-06 | 2020-09-08 | Kidde Technologies, Inc. | Device and method of calibrating fiber Bragg grating based fiber optic overheat systems |
CN108760080B (zh) * | 2018-05-18 | 2019-10-08 | 太原理工大学 | 一种基于ase噪声的分布式光纤拉曼测温装置及方法 |
KR102152990B1 (ko) | 2019-02-15 | 2020-09-07 | 한국과학기술원 | 다채널 광 위상 검출기, 이를 포함하는 다채널 센싱 시스템 및 다중 레이저 동기화 시스템 |
CN109870180A (zh) * | 2019-03-28 | 2019-06-11 | 南京聚科光电技术有限公司 | 一种基于光纤光栅的多功能智能墙面 |
CN111551280A (zh) * | 2020-01-10 | 2020-08-18 | 河北华仁通电电气科技有限公司 | 一种用于分布式光纤的测温系统及其测温方法 |
CN115060186B (zh) * | 2022-08-05 | 2023-01-17 | 武汉理工大学 | 基于弱反射率光栅阵列的桥梁主梁安全监测系统及方法 |
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US5680489A (en) * | 1996-06-28 | 1997-10-21 | The United States Of America As Represented By The Secretary Of The Navy | Optical sensor system utilizing bragg grating sensors |
CA2301069C (en) * | 1997-08-19 | 2004-11-23 | University Of Maryland | Large scale high speed multiplexed optical fiber sensor network |
CA2463502C (en) * | 2001-10-09 | 2011-09-20 | Infinera Corporation | Digital optical network architecture |
US6621960B2 (en) * | 2002-01-24 | 2003-09-16 | Oplink Communications, Inc. | Method of fabricating multiple superimposed fiber Bragg gratings |
US20040066550A1 (en) * | 2002-10-02 | 2004-04-08 | Jay Paul R. | Optical pulse reshaping system |
JP4421229B2 (ja) * | 2003-07-11 | 2010-02-24 | 株式会社東芝 | ファイバブラッググレーティング物理量計測方法および装置 |
JP4671842B2 (ja) * | 2005-11-16 | 2011-04-20 | 防衛省技術研究本部長 | 光ファイバセンサ装置 |
US7538860B2 (en) * | 2007-08-17 | 2009-05-26 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | System and method for determination of the reflection wavelength of multiple low-reflectivity bragg gratings in a sensing optical fiber |
JP5232982B2 (ja) * | 2008-08-28 | 2013-07-10 | 株式会社フジクラ | 光ファイバ位置特定のための光学マーキング部を備えた光ファイバセンサおよび光ファイバセンサの計測方法と光ファイバセンサ装置 |
US8400640B2 (en) * | 2008-10-23 | 2013-03-19 | Pusan National University Industry-University Cooperation Foundation | Optical sensor interrogation system based on FDML wavelength swept laser |
CN101825434B (zh) * | 2010-04-28 | 2011-09-14 | 东北大学 | 一种基于闪耀光纤光栅解调的微位移传感器及检测方法 |
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US9759585B2 (en) | 2017-09-12 |
JP2015508907A (ja) | 2015-03-23 |
WO2013131085A1 (en) | 2013-09-06 |
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