GB0516101D0 - Optical time domain reflectometry - Google Patents

Optical time domain reflectometry

Info

Publication number
GB0516101D0
GB0516101D0 GBGB0516101.3A GB0516101A GB0516101D0 GB 0516101 D0 GB0516101 D0 GB 0516101D0 GB 0516101 A GB0516101 A GB 0516101A GB 0516101 D0 GB0516101 D0 GB 0516101D0
Authority
GB
United Kingdom
Prior art keywords
time domain
optical time
domain reflectometry
reflectometry
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.)
Granted
Application number
GBGB0516101.3A
Other versions
GB2416588B (en
GB2416588A (en
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.)
Sensor Highway Ltd
Original Assignee
Sensor Highway 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
Priority claimed from GBGB0202159.0A external-priority patent/GB0202159D0/en
Application filed by Sensor Highway Ltd filed Critical Sensor Highway Ltd
Publication of GB0516101D0 publication Critical patent/GB0516101D0/en
Publication of GB2416588A publication Critical patent/GB2416588A/en
Application granted granted Critical
Publication of GB2416588B publication Critical patent/GB2416588B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
GB0516101A 2002-01-30 2003-01-30 Optical time domain reflectometry Expired - Fee Related GB2416588B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0202159.0A GB0202159D0 (en) 2002-01-30 2002-01-30 OPtical time domain reflectometry
GB0415289A GB2403801B (en) 2002-01-30 2003-01-30 Optical time domain reflectometry

Publications (3)

Publication Number Publication Date
GB0516101D0 true GB0516101D0 (en) 2005-09-14
GB2416588A GB2416588A (en) 2006-02-01
GB2416588B GB2416588B (en) 2006-06-21

Family

ID=35613759

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0516087A Expired - Fee Related GB2416587B (en) 2002-01-30 2003-01-30 Optical time domain reflectometry
GB0516101A Expired - Fee Related GB2416588B (en) 2002-01-30 2003-01-30 Optical time domain reflectometry

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0516087A Expired - Fee Related GB2416587B (en) 2002-01-30 2003-01-30 Optical time domain reflectometry

Country Status (1)

Country Link
GB (2) GB2416587B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2971108A1 (en) * 2011-01-31 2012-08-03 France Telecom SYSTEM FOR DETERMINING A TIME OF PROPAGATION OF AN OPTICAL SIGNAL BETWEEN TWO OPTICAL EQUIPMENTS USING AN OPTICAL LINK
GB2578116A (en) 2018-10-16 2020-04-22 Aiq Dienstleistungen Ug Haftungsbeschraenkt High rate distributed acoustic sensing using high power light pulses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515443B1 (en) * 1990-02-15 1995-06-07 BRITISH TELECOMMUNICATIONS public limited company Optical test apparatus comprising an OTDR
JPH04274724A (en) * 1991-03-02 1992-09-30 Fujikura Ltd Otdr apparatus
GB9315231D0 (en) * 1993-07-22 1993-09-08 York Ltd Optical time domain reflextometry

Also Published As

Publication number Publication date
GB2416587A (en) 2006-02-01
GB0516087D0 (en) 2005-09-14
GB2416587B (en) 2006-06-21
GB2416588B (en) 2006-06-21
GB2416588A (en) 2006-02-01

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Legal Events

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

Effective date: 20170130