GB2441552B - Method of assessing attenuation in a distributed optical fiber sensing system - Google Patents

Method of assessing attenuation in a distributed optical fiber sensing system

Info

Publication number
GB2441552B
GB2441552B GB0702914A GB0702914A GB2441552B GB 2441552 B GB2441552 B GB 2441552B GB 0702914 A GB0702914 A GB 0702914A GB 0702914 A GB0702914 A GB 0702914A GB 2441552 B GB2441552 B GB 2441552B
Authority
GB
United Kingdom
Prior art keywords
optical fiber
sensing system
fiber sensing
distributed optical
assessing
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.)
Expired - Fee Related
Application number
GB0702914A
Other versions
GB2441552A (en
GB0702914D0 (en
Inventor
Maxwell Richard Hadley
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.)
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
Original Assignee
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
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 Gemalto Terminals Ltd, Schlumberger Holdings Ltd filed Critical Gemalto Terminals Ltd
Publication of GB0702914D0 publication Critical patent/GB0702914D0/en
Publication of GB2441552A publication Critical patent/GB2441552A/en
Application granted granted Critical
Publication of GB2441552B publication Critical patent/GB2441552B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K15/00—Testing or calibrating of thermometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65—Raman scattering

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
GB0702914A 2006-09-07 2007-02-15 Method of assessing attenuation in a distributed optical fiber sensing system Expired - Fee Related GB2441552B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0617620.0A GB0617620D0 (en) 2006-09-07 2006-09-07 Method of measuring signal impairment in optical fibre sensing systems

Publications (3)

Publication Number Publication Date
GB0702914D0 GB0702914D0 (en) 2007-03-28
GB2441552A GB2441552A (en) 2008-03-12
GB2441552B true GB2441552B (en) 2011-03-30

Family

ID=37232527

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0617620.0A Ceased GB0617620D0 (en) 2006-09-07 2006-09-07 Method of measuring signal impairment in optical fibre sensing systems
GB0702914A Expired - Fee Related GB2441552B (en) 2006-09-07 2007-02-15 Method of assessing attenuation in a distributed optical fiber sensing system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0617620.0A Ceased GB0617620D0 (en) 2006-09-07 2006-09-07 Method of measuring signal impairment in optical fibre sensing systems

Country Status (1)

Country Link
GB (2) GB0617620D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8077314B2 (en) 2007-10-15 2011-12-13 Schlumberger Technology Corporation Measuring a characteristic of a multimode optical fiber
US7859654B2 (en) 2008-07-17 2010-12-28 Schlumberger Technology Corporation Frequency-scanned optical time domain reflectometry
JP2013092388A (en) 2011-10-24 2013-05-16 Yokogawa Electric Corp Fiber temperature distribution measurement device
US8630514B2 (en) * 2012-02-15 2014-01-14 Halliburton Energy Services, Inc. Spectral broadening for DTS application
US9683435B2 (en) 2014-03-04 2017-06-20 General Electric Company Sensor deployment system for a wellbore and methods of assembling the same
CN116131938B (en) * 2023-02-14 2023-11-24 讯芸电子科技(中山)有限公司 Method and device for determining abnormal signals of equipment carrying optoelectronic module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234346A (en) * 1989-06-08 1991-01-30 Asahi Glass Co Ltd Tenperature-measuring method and distributed optical fiber temperature sensor
JPH05172653A (en) * 1991-12-20 1993-07-09 Hitachi Cable Ltd Physical quantity distribution detector
GB2426331A (en) * 2002-06-21 2006-11-22 Schlumberger Holdings Method for measuring using optical fibre distributed sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234346A (en) * 1989-06-08 1991-01-30 Asahi Glass Co Ltd Tenperature-measuring method and distributed optical fiber temperature sensor
JPH05172653A (en) * 1991-12-20 1993-07-09 Hitachi Cable Ltd Physical quantity distribution detector
GB2426331A (en) * 2002-06-21 2006-11-22 Schlumberger Holdings Method for measuring using optical fibre distributed sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Stoddart P R et al., "Fibre optic distributed temperature sensor with an integrated background correction function", Measurement Science and Technology, vol. 16, pp 1299-1304 (2005) *

Also Published As

Publication number Publication date
GB2441552A (en) 2008-03-12
GB0702914D0 (en) 2007-03-28
GB0617620D0 (en) 2006-10-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140215