EP3635341A4 - Système de mesure multipoint simultanée de paramètres dynamiques dans une détection optique distribuée, et procédés associés - Google Patents

Système de mesure multipoint simultanée de paramètres dynamiques dans une détection optique distribuée, et procédés associés Download PDF

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Publication number
EP3635341A4
EP3635341A4 EP18797641.0A EP18797641A EP3635341A4 EP 3635341 A4 EP3635341 A4 EP 3635341A4 EP 18797641 A EP18797641 A EP 18797641A EP 3635341 A4 EP3635341 A4 EP 3635341A4
Authority
EP
European Patent Office
Prior art keywords
methods
optical sensing
parameter measurement
dynamic parameter
distributed optical
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.)
Withdrawn
Application number
EP18797641.0A
Other languages
German (de)
English (en)
Other versions
EP3635341A1 (fr
Inventor
Balaji Srinivasan
Deepa Venkitesh
Bhargav SOMEPALLI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Indian Institute of Technology Madras
Original Assignee
Indian Institute of Technology Madras
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Indian Institute of Technology Madras filed Critical Indian Institute of Technology Madras
Publication of EP3635341A1 publication Critical patent/EP3635341A1/fr
Publication of EP3635341A4 publication Critical patent/EP3635341A4/fr
Withdrawn legal-status Critical Current

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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
    • G01D5/35338—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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
EP18797641.0A 2017-05-12 2018-05-11 Système de mesure multipoint simultanée de paramètres dynamiques dans une détection optique distribuée, et procédés associés Withdrawn EP3635341A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201741016741 2017-05-12
PCT/IN2018/050295 WO2018207214A1 (fr) 2017-05-12 2018-05-11 Système de mesure multipoint simultanée de paramètres dynamiques dans une détection optique distribuée, et procédés associés

Publications (2)

Publication Number Publication Date
EP3635341A1 EP3635341A1 (fr) 2020-04-15
EP3635341A4 true EP3635341A4 (fr) 2021-02-24

Family

ID=64104417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18797641.0A Withdrawn EP3635341A4 (fr) 2017-05-12 2018-05-11 Système de mesure multipoint simultanée de paramètres dynamiques dans une détection optique distribuée, et procédés associés

Country Status (3)

Country Link
EP (1) EP3635341A4 (fr)
CA (1) CA3066988A1 (fr)
WO (1) WO2018207214A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109632134B (zh) * 2019-01-07 2020-12-29 东莞理工学院 一种布里渊光时域分析温度、应变解耦方法及系统
CN110617854B (zh) * 2019-10-25 2021-10-08 华北电力大学（保定） 高阶相位调制瑞利botda温度/应变测量方法及装置
CN112414584B (zh) * 2020-10-19 2022-11-22 太原理工大学 基于π脉冲格雷码编码的布里渊光时域分析装置及方法
CN114910191B (zh) * 2022-03-16 2024-07-26 上海波汇科技有限公司 一种布里渊光时域散射系统的自校准方法
JP7740194B2 (ja) * 2022-10-13 2025-09-17 横河電機株式会社 光ファイバ特性測定装置及び光ファイバ特性測定方法
CN118463837B (zh) * 2024-05-11 2025-02-18 西安电子科技大学 一种分布式应变和fbg应变双机制同步测量的方法和装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030007142A1 (en) * 2001-07-02 2003-01-09 1) Kazuo Hotate Apparatus and method for measuring characteristics of optical fibers
US20090141267A1 (en) * 2005-12-01 2009-06-04 The University Of Tokyo Optical-fiber-characteristic measuring apparatus and optical-fiber-characteristic measuring method
US20150168253A1 (en) * 2012-06-13 2015-06-18 Omnisens Sa Sensing system and methods for distributed brillouin sensing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112013019125A2 (pt) * 2011-01-27 2016-10-04 Univ Ramot método de detecção de brillouin distribuída e dinâmica em fibras óticas e sistema de detecção de brillouin distribuída e dinâmica em fibras óticas
CN102607621A (zh) * 2012-03-29 2012-07-25 中国科学院上海光学精密机械研究所 同时检测温度和应变的分布式光纤布里渊传感装置和方法
WO2014177198A1 (fr) * 2013-04-30 2014-11-06 Omnisens Sa Procédé et dispositif de détection à fibre optique distribuée de diffusion de brillouin stimulée par double pompage sans balayage
CN104729750A (zh) * 2013-12-18 2015-06-24 广西大学 一种基于布里渊散射分布式光纤温度传感器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030007142A1 (en) * 2001-07-02 2003-01-09 1) Kazuo Hotate Apparatus and method for measuring characteristics of optical fibers
US20090141267A1 (en) * 2005-12-01 2009-06-04 The University Of Tokyo Optical-fiber-characteristic measuring apparatus and optical-fiber-characteristic measuring method
US20150168253A1 (en) * 2012-06-13 2015-06-18 Omnisens Sa Sensing system and methods for distributed brillouin sensing

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BHARGAV SOMEPALLI ET AL: "Spatial mapping of correlation profile in Brillouin optical correlation domain analysis", MEASUREMENT SCIENCE AND TECHNOLOGY, IOP, BRISTOL, GB, vol. 28, no. 4, 15 February 2017 (2017-02-15), pages 45202, XP020314837, ISSN: 0957-0233, [retrieved on 20170215], DOI: 10.1088/1361-6501/AA5B74 *
See also references of WO2018207214A1 *

Also Published As

Publication number Publication date
WO2018207214A1 (fr) 2018-11-15
EP3635341A1 (fr) 2020-04-15
CA3066988A1 (fr) 2018-11-15

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