GB201814159D0 - Fibre optic apparatus - Google Patents

Fibre optic apparatus

Info

Publication number
GB201814159D0
GB201814159D0 GBGB1814159.8A GB201814159A GB201814159D0 GB 201814159 D0 GB201814159 D0 GB 201814159D0 GB 201814159 A GB201814159 A GB 201814159A GB 201814159 D0 GB201814159 D0 GB 201814159D0
Authority
GB
United Kingdom
Prior art keywords
fibre optic
optic apparatus
fibre
optic
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.)
Ceased
Application number
GBGB1814159.8A
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.)
Optasense Holdings Ltd
Original Assignee
Optasense 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 Optasense Holdings Ltd filed Critical Optasense Holdings Ltd
Priority to GBGB1814159.8A priority Critical patent/GB201814159D0/en
Publication of GB201814159D0 publication Critical patent/GB201814159D0/en
Priority to PCT/GB2019/052405 priority patent/WO2020044041A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • 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
    • G01D5/35361—Sensor working in reflection using backscattering to detect the measured quantity using elastic backscattering to detect the measured quantity, e.g. using Rayleigh backscattering
GBGB1814159.8A 2018-08-31 2018-08-31 Fibre optic apparatus Ceased GB201814159D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB1814159.8A GB201814159D0 (en) 2018-08-31 2018-08-31 Fibre optic apparatus
PCT/GB2019/052405 WO2020044041A1 (en) 2018-08-31 2019-08-28 Fibre optic communication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1814159.8A GB201814159D0 (en) 2018-08-31 2018-08-31 Fibre optic apparatus

Publications (1)

Publication Number Publication Date
GB201814159D0 true GB201814159D0 (en) 2018-10-17

Family

ID=63920951

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB1814159.8A Ceased GB201814159D0 (en) 2018-08-31 2018-08-31 Fibre optic apparatus

Country Status (2)

Country Link
GB (1) GB201814159D0 (en)
WO (1) WO2020044041A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11686909B2 (en) * 2020-04-14 2023-06-27 Nec Corporation Utility pole localization using distributed acoustic sensing
JP7442683B2 (en) * 2020-05-12 2024-03-04 エヌイーシー ラボラトリーズ アメリカ インク Laser noise reduction for laser interferometry
CN112798227B (en) * 2020-12-28 2021-12-10 广西电网有限责任公司 Strong magnetic field transmission performance detection equipment for optical fiber

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996692A (en) * 1989-09-15 1991-02-26 The United States Of America As Represented By The Secretary Of The Navy Laser communication system with wide band magnetrostrictive modulation
GB2433112B (en) * 2005-12-06 2008-07-09 Schlumberger Holdings Borehole telemetry system
GB2442745B (en) 2006-10-13 2011-04-06 At & T Corp Method and apparatus for acoustic sensing using multiple optical pulses
GB201014506D0 (en) 2010-09-01 2010-10-13 Qinetiq Ltd Magnetic field detection
GB2489749B (en) 2011-04-08 2016-01-20 Optasense Holdings Ltd Fibre optic distributed sensing
US9575209B2 (en) * 2012-12-22 2017-02-21 Halliburton Energy Services, Inc. Remote sensing methods and systems using nonlinear light conversion and sense signal transformation

Also Published As

Publication number Publication date
WO2020044041A1 (en) 2020-03-05

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)