JP6057263B1 - 光ファイバ格子センサを用いた内空変位及び天端沈下測定装置 - Google Patents
光ファイバ格子センサを用いた内空変位及び天端沈下測定装置 Download PDFInfo
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 103
- 239000013307 optical fiber Substances 0.000 title claims abstract description 54
- 238000005259 measurement Methods 0.000 title claims abstract description 38
- 238000009434 installation Methods 0.000 claims abstract description 74
- 230000001681 protective effect Effects 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- 238000000691 measurement method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
Classifications
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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
- 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
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- 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
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- 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
-
- 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
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
-
- 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
-
- 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
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- 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
- G01D5/35316—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 Bragg gratings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/08—Testing mechanical properties
- G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]
- G01M11/085—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT] the optical fiber being on or near the surface of the DUT
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Multimedia (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
そこで、数式3のように、C'点を求めることができ、残りのD'、E'座標も、同様な方式で求めるようになる。
絶対座標方式及び相対座標方式の計測原理において、結果として、各センサモジュール10でΔθとΔLを求めれば良い。
20: 変形率センサ
21: 保護管
22: 結合具
30: 設置部材
31、32: 第1、第2のリンク
33: 挿入溝
34: 軸孔
35: 結合具
40: 角度変位センサ
41: 結合部材
50: ベース
51: 固定部材
52: 固定ユニット
53、54: 第1、第2のブラケット
55: 連結軸
Claims (6)
- 予め設定された長さを有し、連続的に連結して使用する複数の単位光ファイバ格子センサモジュールを含み、
各センサモジュールは、保護管内に設置され、長さ変化を感知する光ファイバ格子変形率センサと、
前記保護管の一側に平行に設置される設置部材と、
前記設置部材上に設置され、角度変位を測定する光ファイバ格子角度変位センサと、
各センサモジュールの両端にそれぞれ設けられ、隣接するセンサモジュールを連結するベースと、
前記保護管と設置部材の両端をそれぞれ、前記ベースに固定する固定部材及び固定ユニットとを含み、
2次元又は3次元の内空変位及び天端沈下を常時計測し、
前記保護管の両端には、各ベース間の距離及びベースの設置角度によって、前記光ファイバ格子変形率センサの設置距離及び設置角度の調節が可能であるように、前記保護管に沿って移動可能に結合具が設けられ、
前記結合具は、前記ベースと固定部材との間に挿入固定されることを特徴とする光ファイバ格子センサを用いた内空変位及び天端沈下測定装置。 - 前記設置部材は、バー状のレールとして設けられ、
前記設置部材の両端には、各ベース間の距離及びベースの設置角度によって、前記設置部材の設置距離及び設置角度の調節ができるように、それぞれ、第1のリンクと第2のリンクとがそれぞれ連結されることを特徴とする、請求項1に記載の光ファイバ格子センサを用いた内空変位及び天端沈下測定装置。 - 前記第1のリンクの一端は、前記設置部材の一端に左右方向に回転可能に結合され、
前記第1のリンクの他端は、前記固定ユニットと上下方向に回転可能に結合されることを特徴とする、請求項2に記載の光ファイバ格子センサを用いた内空変位及び天端沈下測定装置。 - 前記第2のリンクの一端は、前記設置部材の他端に左右方向に回転可能に結合され、
前記第2のリンクの他端には、前記第2のリンクに沿って移動可能に結合具が設けられることを特徴とする、請求項2に記載の光ファイバ格子センサを用いた内空変位及び天端沈下測定装置。 - 前記固定ユニットは、前記ベースに固定される第1のブラケットと、
前記第1のブラケットの一側に結合され、前記設置部材に結合された第1のリンクを上下方向に回転可能に固定する第2のブラケットとを含み、
前記第2のブラケットには、前記第1のリンクに形成された軸孔に挿入される連結軸が形成されることを特徴とする、請求項2に記載の光ファイバ格子センサを用いた内空変位及び天端沈下測定装置。 - 前記ベースには、互いに隣接する一対のセンサモジュールを同時に設置できるように、それぞれ一対の固定部材と固定ユニットが結合されることを特徴とする、請求項1乃至請求項5のいずれか1項に記載の光ファイバ格子センサを用いた内空変位及び天端沈下測定装置。
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KR1020150119112A KR101790177B1 (ko) | 2015-08-24 | 2015-08-24 | 광섬유 격자센서를 이용한 내공변위 및 천 단 침하 측정장치 |
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Cited By (3)
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CN107228653A (zh) * | 2017-06-30 | 2017-10-03 | 中铁十四局集团有限公司 | 隧道监测机构和用于隧道的沉降监测方法 |
CN113804155A (zh) * | 2021-08-31 | 2021-12-17 | 中铁七局集团有限公司 | 隧道变形智能监测设备及安装布置方法 |
CN115930800A (zh) * | 2023-02-21 | 2023-04-07 | 西南石油大学 | 一种基于三维激光点云的隧道掌子面位移场监测方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107228653A (zh) * | 2017-06-30 | 2017-10-03 | 中铁十四局集团有限公司 | 隧道监测机构和用于隧道的沉降监测方法 |
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CN115930800A (zh) * | 2023-02-21 | 2023-04-07 | 西南石油大学 | 一种基于三维激光点云的隧道掌子面位移场监测方法 |
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US9574957B1 (en) | 2017-02-21 |
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EP3136046B1 (en) | 2018-08-01 |
JP2017044681A (ja) | 2017-03-02 |
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CN106482642A (zh) | 2017-03-08 |
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