JP2014025928A - ファイバブラッググレーティングを有するマルチコア光導波路によって温度、ひずみ、および/またはねじれを検出するためのセンサファイバ - Google Patents
ファイバブラッググレーティングを有するマルチコア光導波路によって温度、ひずみ、および/またはねじれを検出するためのセンサファイバ Download PDFInfo
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- 239000000835 fiber Substances 0.000 title claims abstract description 74
- 230000003287 optical effect Effects 0.000 title claims description 11
- 230000010259 detection of temperature stimulus Effects 0.000 title description 2
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- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
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- 238000005253 cladding Methods 0.000 description 1
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- 230000008018 melting Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Classifications
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- 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
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
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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
- G01D5/35306—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 an interferometer arrangement
- G01D5/35309—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 an interferometer arrangement using multiple waves interferometer
- G01D5/35312—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 an interferometer arrangement using multiple waves interferometer using a Fabry Perot
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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
- G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
- G01D5/3538—Optical fibre sensor using a particular arrangement of the optical fibre itself using a particular type of fiber, e.g. fibre with several cores, PANDA fiber, fiber with an elliptic core or the like
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- 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
- G01K11/3206—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 at discrete locations in the fibre, e.g. using Bragg scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
- G01L1/246—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using integrated gratings, e.g. Bragg gratings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/12—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving photoelectric means
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- 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
- G02B6/34—Optical coupling means utilising prism or grating
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- 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
- G02B6/02—Optical fibres with cladding with or without a coating
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- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Transform (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
【解決手段】複数のコアおよびFBG構造を備えるセンサファイバ1によって達成され、少なくとも2つのFBGファイバコア2と、周囲の被覆材3とを備えており、識別および方向付けのための1つ以上の手段が、各々のFBGファイバコアに明確にアドレスできるようにファイバ内に配置されている。
【選択図】図1
Description
2 FBGコア
3 被覆材
4 マーカ領域
5 毛管
6 マーカ/アナライト
7 張力発生用ロッド
8 穴発生用ロッド
9 ファイバコアの修正
10 低い屈折率の層
11 外側部分の異質
Claims (10)
- 少なくとも2つのFBGコア(2)と周囲の被覆材(3)とを備えるFBG構造を有するマルチコア光導波路によって温度、曲げ、および/または、ねじれを検出するセンサファイバ(1)であって、当該センサファイバの内部に位置し、あるいは、当該センサファイバに位置する識別または方向付けのための1つ以上の手段を、マーカ領域の確実な検出のための測定システムによって検出可能であることを特徴とするセンサファイバ。
- 前記識別および方向付けのための手段は、前記被覆材の内部における前記FBGコア(2)の非円筒対称性である一方で、FBGコアの数が、特有の配置を保証するように選択されていることを特徴とする、請求項1に記載のセンサファイバ。
- 前記区別および方向付けのための手段は、前記被覆材(3)における前記センサファイバ(1)の内部の検出可能な特有のマーカ領域として製作されていることを特徴とする、請求項1または2に記載のセンサファイバ。
- 前記マーカ領域は、毛管であることを特徴とする、請求項3に記載のセンサファイバ。
- 前記毛管は、アナライトまたはマーカ(6)で満たされていることを特徴とする、請求項4に記載のセンサファイバ。
- 前記マーカ領域は、穴を生成する前記FBGコア(2)の配置の非対称によって達成され、前記穴は、被覆材の材料で構成され、光を案内することができないロッド(8)で作られていることを特徴とする、請求項3に記載のセンサファイバ。
- 前記マーカ領域は、機械的な張力を生じさせるロッド(7)である一方で、生じさせられた張力は、近傍のFBGコアの光学的特性の検出可能な変化をもたらしていることを特徴とする、請求項3に記載のセンサファイバ。
- 前記識別および方向付けのための手段は、前記FBGコア(2)の非対称に研削された材料(9)で構成されていることを特徴とする、請求項1〜7のいずれか一項に記載のセンサファイバ。
- 各々のFBGコア(2)は、FBGコア(2)の間の光クロストークを軽減する低い屈折率の層(10)によって囲まれていることを特徴とする、請求項1〜8のいずれか一項に記載のセンサファイバ。
- 前記マーカ領域(4)は、前記センサファイバの外側部分に位置する異質部(11)であることを特徴とする、請求項1〜9のいずれか一項に記載のセンサファイバ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102012106806.2 | 2012-07-26 | ||
DE102012106806.2A DE102012106806B4 (de) | 2012-07-26 | 2012-07-26 | Sensorfaser zur Temperatur-, Dehnungs- und/oder Torsionsdetektion in Form eines Mehrkern-Lichtwellenleiters mit einer Fiber-Bragg-Gitterstruktur |
Publications (2)
Publication Number | Publication Date |
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JP2014025928A true JP2014025928A (ja) | 2014-02-06 |
JP5654646B2 JP5654646B2 (ja) | 2015-01-14 |
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JP2013153938A Active JP5654646B2 (ja) | 2012-07-26 | 2013-07-24 | ファイバブラッググレーティングを有するマルチコア光導波路によって温度、ひずみ、および/またはねじれを検出するためのセンサファイバ |
Country Status (4)
Country | Link |
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US (1) | US9976880B2 (ja) |
EP (1) | EP2690421A3 (ja) |
JP (1) | JP5654646B2 (ja) |
DE (1) | DE102012106806B4 (ja) |
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WO2021131977A1 (ja) * | 2019-12-26 | 2021-07-01 | 株式会社フジクラ | マルチコアファイバ、光ファイバケーブル、及び光コネクタ |
JP2022124320A (ja) * | 2021-02-15 | 2022-08-25 | Kddi株式会社 | マルチコア光ファイバ |
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EP3105548A2 (en) * | 2014-02-10 | 2016-12-21 | University of Central Florida Research Foundation, Inc. | Multicore optical fiber apparatus, methods, and applications |
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DE102012106806B4 (de) | 2022-07-28 |
JP5654646B2 (ja) | 2015-01-14 |
US20140029889A1 (en) | 2014-01-30 |
US9976880B2 (en) | 2018-05-22 |
EP2690421A2 (de) | 2014-01-29 |
DE102012106806A1 (de) | 2014-01-30 |
EP2690421A3 (de) | 2014-03-12 |
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