BR9505199A - Processo de detecção e/ou de medida de variações de uma grandeza fisica com o auxilio de um captador distribuido ou combinado - Google Patents

Processo de detecção e/ou de medida de variações de uma grandeza fisica com o auxilio de um captador distribuido ou combinado

Info

Publication number
BR9505199A
BR9505199A BR9505199A BR9505199A BR9505199A BR 9505199 A BR9505199 A BR 9505199A BR 9505199 A BR9505199 A BR 9505199A BR 9505199 A BR9505199 A BR 9505199A BR 9505199 A BR9505199 A BR 9505199A
Authority
BR
Brazil
Prior art keywords
aid
variations
distributed
detection
physical quantity
Prior art date
Application number
BR9505199A
Other languages
English (en)
Inventor
Andre Tardy
Original Assignee
Alcatel Cable
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 FR9413768A external-priority patent/FR2727201B1/fr
Application filed by Alcatel Cable filed Critical Alcatel Cable
Publication of BR9505199A publication Critical patent/BR9505199A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • 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
    • G01D5/35383—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 multiple sensor devices using multiplexing techniques
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G02B6/29319—With a cascade of diffractive elements or of diffraction operations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Transform (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Measuring Fluid Pressure (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Length Measuring Devices By Optical Means (AREA)
BR9505199A 1994-11-17 1995-11-16 Processo de detecção e/ou de medida de variações de uma grandeza fisica com o auxilio de um captador distribuido ou combinado BR9505199A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9413768A FR2727201B1 (fr) 1994-11-17 1994-11-17 Procede de detection et/ou de mesure de grandeurs physiques utilisant un capteur distribue
FR9413767 1994-11-17

Publications (1)

Publication Number Publication Date
BR9505199A true BR9505199A (pt) 1997-09-16

Family

ID=26231541

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9505199A BR9505199A (pt) 1994-11-17 1995-11-16 Processo de detecção e/ou de medida de variações de uma grandeza fisica com o auxilio de um captador distribuido ou combinado

Country Status (9)

Country Link
US (1) US5684297A (pt)
EP (1) EP0713077B1 (pt)
JP (1) JPH08240451A (pt)
KR (1) KR960018538A (pt)
CN (1) CN1183548A (pt)
BR (1) BR9505199A (pt)
DE (1) DE69513937T2 (pt)
DK (1) DK0713077T3 (pt)
FI (1) FI955511A (pt)

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CN110435812A (zh) * 2012-05-30 2019-11-12 赛创尼克株式会社 通过对海洋结构物的实时测量监视的控制方法
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CN105683730B (zh) * 2013-10-25 2019-01-11 光纳株式会社 光纤式生物体诊断用传感器***及血管***式分布压力测定装置
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CN103994785B (zh) * 2014-05-29 2016-08-31 武汉理工大学 一种基于弱光纤光栅阵列的传感监测装置和传感方法
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CN110440837B (zh) * 2019-08-19 2021-10-15 武汉地震工程研究院有限公司 一种多参量光纤同步传感采集仪和传感采集方法
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CN111238680B (zh) * 2020-01-20 2021-05-25 上海波汇科技有限公司 双宽度脉冲光纤分布式拉曼测温空间分辨率提升方法
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CN115014763B (zh) * 2022-05-07 2023-08-29 武汉理工大学 用于主轴故障监测的光纤光栅测量***及优化方法

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Also Published As

Publication number Publication date
CN1183548A (zh) 1998-06-03
FI955511A0 (fi) 1995-11-15
DE69513937T2 (de) 2000-07-20
DK0713077T3 (da) 2000-06-13
EP0713077A1 (fr) 1996-05-22
DE69513937D1 (de) 2000-01-20
FI955511A (fi) 1996-05-18
KR960018538A (ko) 1996-06-17
US5684297A (en) 1997-11-04
JPH08240451A (ja) 1996-09-17
EP0713077B1 (fr) 1999-12-15

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FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law