CN102612639B - 基于相位的感测 - Google Patents

基于相位的感测 Download PDF

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Publication number
CN102612639B
CN102612639B CN201080044182.2A CN201080044182A CN102612639B CN 102612639 B CN102612639 B CN 102612639B CN 201080044182 A CN201080044182 A CN 201080044182A CN 102612639 B CN102612639 B CN 102612639B
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CN
China
Prior art keywords
signal
backscattered
optical fiber
time
phase place
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Expired - Fee Related
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CN201080044182.2A
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English (en)
Chinese (zh)
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CN102612639A (zh
Inventor
R·I·克里克莫尔
D·J·希尔
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Qinetiq Ltd
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Optasense Holdings Ltd
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    • 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
    • G01D5/35303—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 a reference fibre, e.g. interferometric devices
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
CN201080044182.2A 2009-09-30 2010-09-24 基于相位的感测 Expired - Fee Related CN102612639B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0917150.5A GB0917150D0 (en) 2009-09-30 2009-09-30 Phase based sensing
GB0917150.5 2009-09-30
PCT/GB2010/001802 WO2011039501A2 (en) 2009-09-30 2010-09-24 Phase based sensing

Publications (2)

Publication Number Publication Date
CN102612639A CN102612639A (zh) 2012-07-25
CN102612639B true CN102612639B (zh) 2014-10-08

Family

ID=41350608

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080044182.2A Expired - Fee Related CN102612639B (zh) 2009-09-30 2010-09-24 基于相位的感测

Country Status (11)

Country Link
US (1) US8537345B2 (https=)
EP (1) EP2483639B1 (https=)
JP (1) JP5469749B2 (https=)
CN (1) CN102612639B (https=)
BR (1) BR112012007192B1 (https=)
CA (1) CA2775845C (https=)
GB (1) GB0917150D0 (https=)
IN (1) IN2012DN03047A (https=)
MX (1) MX2012003815A (https=)
RU (1) RU2556748C2 (https=)
WO (1) WO2011039501A2 (https=)

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CN113405577B (zh) * 2018-05-30 2022-11-11 华为技术有限公司 一种测量方法及测量装置
EP3833943B1 (en) 2018-08-08 2023-10-04 Aselsan Elektronik Sanayi ve Ticaret Anonim Sirketi Extinction ratio free phase sensitive optical time domain reflectometry based distributed acoustic sensing system
US11378443B2 (en) * 2019-05-22 2022-07-05 Nec Corporation Performance of Rayleigh-based phase-OTDR with correlation-based diversity combining and bias removal
US11320304B2 (en) * 2019-05-22 2022-05-03 Nec Corporation Multi-frequency coherent distributed acoustic sensing (DAS) with single transmitter / receiver pair using offset Tx / Rx frequency framing scheme
FR3104730B1 (fr) * 2019-12-12 2021-12-24 Thales Sa Dispositif de mesure de signaux delivres par un reseau de capteurs a base de cavites laser a fibre optique
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Also Published As

Publication number Publication date
CA2775845C (en) 2017-11-14
MX2012003815A (es) 2012-06-19
WO2011039501A2 (en) 2011-04-07
BR112012007192B1 (pt) 2021-06-22
GB0917150D0 (en) 2009-11-11
US20120188533A1 (en) 2012-07-26
EP2483639A2 (en) 2012-08-08
IN2012DN03047A (https=) 2015-07-31
EP2483639B1 (en) 2020-03-04
BR112012007192A2 (pt) 2016-03-29
CN102612639A (zh) 2012-07-25
JP5469749B2 (ja) 2014-04-16
WO2011039501A3 (en) 2012-02-16
US8537345B2 (en) 2013-09-17
RU2556748C2 (ru) 2015-07-20
JP2013506828A (ja) 2013-02-28
RU2012117750A (ru) 2013-11-20
CA2775845A1 (en) 2011-04-07

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