AU1656895A - Distributed sensing apparatus - Google Patents

Distributed sensing apparatus

Info

Publication number
AU1656895A
AU1656895A AU16568/95A AU1656895A AU1656895A AU 1656895 A AU1656895 A AU 1656895A AU 16568/95 A AU16568/95 A AU 16568/95A AU 1656895 A AU1656895 A AU 1656895A AU 1656895 A AU1656895 A AU 1656895A
Authority
AU
Australia
Prior art keywords
sensing apparatus
distributed sensing
distributed
sensing
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.)
Granted
Application number
AU16568/95A
Other versions
AU691573B2 (en
Inventor
David Alfred Jackson
Christopher Pannell
David John Webb
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Research & Engineerin
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 Furukawa Research & Engineerin filed Critical Furukawa Research & Engineerin
Publication of AU1656895A publication Critical patent/AU1656895A/en
Application granted granted Critical
Publication of AU691573B2 publication Critical patent/AU691573B2/en
Assigned to FURUKAWA ELECTRIC CO. LTD., THE reassignment FURUKAWA ELECTRIC CO. LTD., THE Amend patent request/document other than specification (104) Assignors: FURUKAWA RESEARCH & ENGINEERING (EUROPE) LIMITED
Assigned to FURUKAWA ELECTRIC CO. LTD., THE reassignment FURUKAWA ELECTRIC CO. LTD., THE Request to Amend Deed and Register Assignors: FURUKAWA ELECTRIC CO. LTD., THE
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/247—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet using distributed sensing elements, e.g. microcapsules
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Lasers (AREA)
AU16568/95A 1994-04-28 1995-04-20 Distributed sensing apparatus Ceased AU691573B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9408502A GB9408502D0 (en) 1994-04-28 1994-04-28 Distributed sensing apparatus
GB9408502 1994-04-28

Publications (2)

Publication Number Publication Date
AU1656895A true AU1656895A (en) 1995-11-09
AU691573B2 AU691573B2 (en) 1998-05-21

Family

ID=10754317

Family Applications (1)

Application Number Title Priority Date Filing Date
AU16568/95A Ceased AU691573B2 (en) 1994-04-28 1995-04-20 Distributed sensing apparatus

Country Status (3)

Country Link
JP (1) JPH0854257A (en)
AU (1) AU691573B2 (en)
GB (2) GB9408502D0 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3033677B2 (en) * 1995-09-26 2000-04-17 安藤電気株式会社 Optical fiber characteristics measurement device
DE19618685C2 (en) * 1996-05-09 1998-05-07 Daimler Benz Aerospace Airbus Method and arrangement for temperature detection in rooms, in particular in passenger or cargo compartments in aircraft
JP3319306B2 (en) * 1996-10-03 2002-08-26 日立電線株式会社 Optical fiber strain distribution sensor
GB9720980D0 (en) * 1997-10-02 1997-12-03 Furukawa Research & Engineerin Distributed sensing apparatus
US6813403B2 (en) 2002-03-14 2004-11-02 Fiber Optic Systems Technology, Inc. Monitoring of large structures using brillouin spectrum analysis
GB2402738B (en) * 2003-06-12 2005-08-03 Sensor Highway Ltd Scale detection
KR100625807B1 (en) * 2004-02-25 2006-09-20 한국과학기술원 A Physical Quantity Measuring Method Using A Brillioun Optical Fiber Sensor
US7356207B2 (en) 2006-06-05 2008-04-08 Honeywell International, Inc. Method and system for adjusting the sensitivity of optical sensors
US7509008B2 (en) * 2006-10-06 2009-03-24 Halliburton Energy Services, Inc. Method and apparatus for locating a localized temperature change in a workspace
US7946341B2 (en) 2007-11-02 2011-05-24 Schlumberger Technology Corporation Systems and methods for distributed interferometric acoustic monitoring
US8770283B2 (en) 2007-11-02 2014-07-08 Schlumberger Technology Corporation Systems and methods for distributed interferometric acoustic monitoring
CN104316217A (en) * 2014-10-23 2015-01-28 国网河南省电力公司周口供电公司 On-line monitoring system based on brillouin scattering self-temperature-measurement optical fiber composite guide wire
EP3292597B1 (en) 2015-05-05 2021-07-21 Filippo Bastianini Double frequency conversion apparatus for sourcing radiations having an intrinsically stable wavelength-shift that is quickly tuneable within an extended range, in particular for use in brillouin analysers
US10845221B2 (en) 2016-06-27 2020-11-24 Omnisens Sa Calibration device for distributing sensing technologies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234585B (en) * 1989-06-29 1993-09-29 Kent Scient Ind Projects Arrangement for producing signal frequency shifts.
JP3112595B2 (en) * 1993-03-17 2000-11-27 安藤電気株式会社 Optical fiber strain position measuring device using optical frequency shifter

Also Published As

Publication number Publication date
GB2289331A (en) 1995-11-15
GB2289331B (en) 1998-09-16
GB9507989D0 (en) 1995-06-07
JPH0854257A (en) 1996-02-27
AU691573B2 (en) 1998-05-21
GB9408502D0 (en) 1994-06-22

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