EA201800304A1 - Распределенное оптоэлектронное измерительное устройство на основе бриллюэновского рассеяния - Google Patents

Распределенное оптоэлектронное измерительное устройство на основе бриллюэновского рассеяния

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Publication number
EA201800304A1
EA201800304A1 EA201800304A EA201800304A EA201800304A1 EA 201800304 A1 EA201800304 A1 EA 201800304A1 EA 201800304 A EA201800304 A EA 201800304A EA 201800304 A EA201800304 A EA 201800304A EA 201800304 A1 EA201800304 A1 EA 201800304A1
Authority
EA
Eurasian Patent Office
Prior art keywords
brillouin
frequency
optical fiber
fiber
νbz
Prior art date
Application number
EA201800304A
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English (en)
Other versions
EA034423B1 (ru
Inventor
Винсент Лантик
Original Assignee
Фебус Оптикс
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Publication date
Application filed by Фебус Оптикс filed Critical Фебус Оптикс
Publication of EA201800304A1 publication Critical patent/EA201800304A1/ru
Publication of EA034423B1 publication Critical patent/EA034423B1/ru

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Classifications

    • 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
    • G01D5/35303—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 a reference fibre, e.g. interferometric devices
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Optical Transform (AREA)

Abstract

Изобретение относится к способу цифровой обработки сигнала от распределенного оптоэлектронного измерительного устройства на основе бриллюэновского рассеяния, при этом указанное устройство содержит источник непрерывного света (1), разветвитель (2), акустооптический модулятор (3), тестируемое оптоволокно (5), в котором возникает обратный сигнал за счет спонтанного бриллюэновского обратного рассеяния с частотой νF, равной νp - νBz, где νBz - бриллюэновская частота, измеряемая в каждой точке z оптоволокна (5), гетеродин (16), излучающий другой световой сигнал, предназначенный для смешивания с обратным сигналом, возникающим в результате бриллюэновского рассеяния в тестируемом оптоволокне (5), модуль детектирования (9), выполненный с возможностью определять частоту бриллюэновского сдвига νBz в каждой точке z оптоволокна, и процессорный модуль для привязки частоты бриллюэновского сдвига νBz в каждой точке z оптоволокна к значениям температуры и деформации. В соответствии с изобретением гетеродин (16) содержит эталонное оптоволокно (18), бриллюэновская частота которого идентична бриллюэновской частоте тестируемого оптоволокна (5) или близка к ней, при этом в эталонном оптоволокне (18) возникает сигнал за счет спонтанного бриллюэновского обратного рассеяния под воздействием непрерывного светового сигнала, поступающего во второе плечо от источника света (1), при этом сигнал бриллюэновского обратного рассеяния излучается на частоте νOL=νO-νBRef, где νBRef - бриллюэновская частота эталонного волокна без деформаций при эталонной температуре.
EA201800304A 2015-11-06 2016-11-04 Способ цифровой обработки сигнала от распределенного оптоэлектронного измерительного устройства на основе бриллюэновского рассеяния EA034423B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1560681A FR3043457B1 (fr) 2015-11-06 2015-11-06 Dispositif optoelectronique de mesure repartie par diffusion brillouin.
PCT/FR2016/052870 WO2017077257A1 (fr) 2015-11-06 2016-11-04 Dispositif optoelectronique de mesure repartie par diffusion brillouin

Publications (2)

Publication Number Publication Date
EA201800304A1 true EA201800304A1 (ru) 2018-10-31
EA034423B1 EA034423B1 (ru) 2020-02-06

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EA201800304A EA034423B1 (ru) 2015-11-06 2016-11-04 Способ цифровой обработки сигнала от распределенного оптоэлектронного измерительного устройства на основе бриллюэновского рассеяния

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Country Link
US (1) US10274345B2 (ru)
EP (1) EP3371554B1 (ru)
CN (1) CN108603773B (ru)
CA (1) CA3004394C (ru)
EA (1) EA034423B1 (ru)
FR (1) FR3043457B1 (ru)
WO (1) WO2017077257A1 (ru)

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CN108362214A (zh) * 2018-01-23 2018-08-03 广东电网有限责任公司清远供电局 一种变电站地基沉降隐患的监测装置
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CN110361037B (zh) * 2019-07-01 2021-11-23 武汉理工大学 基于弱光栅阵列分布式传感预处理系统与寻峰方法
WO2021161459A1 (ja) * 2020-02-13 2021-08-19 日本電信電話株式会社 光ファイバの浸水を検知する装置及び方法
EP3879234A1 (en) * 2020-03-11 2021-09-15 Nexans Method and system for determining deformation in a cable
CN111486881A (zh) * 2020-04-23 2020-08-04 全球能源互联网研究院有限公司 一种分布式光纤多参量传感装置
JP7468638B2 (ja) * 2020-05-21 2024-04-16 日本電信電話株式会社 ブリルアン光センシング装置および光センシング方法
DE102020132210B4 (de) * 2020-12-03 2022-08-25 Nkt Photonics Gmbh Vorrichtung und Verfahren zur Digitalisierung eines optischen Signals sowie zur ortsaufgelösten Messung von Temperatur und Dehnung vermittels Brillouin-Streuung
CN113702741A (zh) * 2021-08-27 2021-11-26 中国电建集团河北省电力勘测设计研究院有限公司 一种新型电缆结构及电缆监测系统
CN113984126B (zh) * 2021-11-04 2024-05-14 武汉理工大学威海研究院 基于不同掺杂双芯弱反射fbg阵列的温度应变监测系统和方法
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CN116858295B (zh) * 2023-06-08 2024-05-14 南方海洋科学与工程广东省实验室(湛江) 一种基于分布式光缆的海洋岛礁近岸防卫监测系统及方法

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Also Published As

Publication number Publication date
CN108603773A (zh) 2018-09-28
CA3004394A1 (en) 2017-05-11
EP3371554B1 (fr) 2020-01-01
EP3371554A1 (fr) 2018-09-12
WO2017077257A1 (fr) 2017-05-11
CN108603773B (zh) 2020-05-29
US20190063963A1 (en) 2019-02-28
FR3043457A1 (fr) 2017-05-12
CA3004394C (en) 2022-11-08
FR3043457B1 (fr) 2020-02-07
US10274345B2 (en) 2019-04-30
EA034423B1 (ru) 2020-02-06

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