CA2235482A1 - Jauge de contrainte - Google Patents
Jauge de contrainte Download PDFInfo
- Publication number
- CA2235482A1 CA2235482A1 CA 2235482 CA2235482A CA2235482A1 CA 2235482 A1 CA2235482 A1 CA 2235482A1 CA 2235482 CA2235482 CA 2235482 CA 2235482 A CA2235482 A CA 2235482A CA 2235482 A1 CA2235482 A1 CA 2235482A1
- Authority
- CA
- Canada
- Prior art keywords
- supports
- optical fibre
- strain gauge
- fibre
- strain
- 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.)
- Abandoned
Links
- 239000013307 optical fiber Substances 0.000 claims abstract description 68
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 6
- 238000004382 potting Methods 0.000 description 6
- LNUFLCYMSVYYNW-ZPJMAFJPSA-N [(2r,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6r)-6-[(2r,3r,4s,5r,6r)-6-[(2r,3r,4s,5r,6r)-6-[[(3s,5s,8r,9s,10s,13r,14s,17r)-10,13-dimethyl-17-[(2r)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-3-yl]oxy]-4,5-disulfo Chemical compound O([C@@H]1[C@@H](COS(O)(=O)=O)O[C@@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1[C@@H](COS(O)(=O)=O)O[C@@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1[C@@H](COS(O)(=O)=O)O[C@H]([C@@H]([C@H]1OS(O)(=O)=O)OS(O)(=O)=O)O[C@@H]1C[C@@H]2CC[C@H]3[C@@H]4CC[C@@H]([C@]4(CC[C@@H]3[C@@]2(C)CC1)C)[C@H](C)CCCC(C)C)[C@H]1O[C@H](COS(O)(=O)=O)[C@@H](OS(O)(=O)=O)[C@H](OS(O)(=O)=O)[C@H]1OS(O)(=O)=O LNUFLCYMSVYYNW-ZPJMAFJPSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
- G01L1/243—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 means for applying force perpendicular to the fibre axis
-
- 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
- G01L1/243—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 means for applying force perpendicular to the fibre axis
- G01L1/245—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 means for applying force perpendicular to the fibre axis using microbending
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
Une jauge de contrainte (1) à fibres optiques destinée à un ouvrage d'art tel qu'un pont, un immeuble, une canalisation, une installation ou similaire, comporte: (a) une pluralité de supports (8, 10) destinés à la fibre optique, lesquels peuvent être situés sur une surface de la structure et sont espacés les uns des autres sur une partie de cette surface; et (b) au moins une fibre optique enroulée autour des supports de manière à s'étendre entre ces derniers, la fibre optique étant fixe par rapport aux supports de sorte que la longueur de la partie de la fibre s'étendant entre lesdits supports va varier en fonction de la contrainte de la surface de la structure. La ou les fibres optiques (12) peuvent être enroulées autour des supports (8, 10) un certain nombre de fois, ce qui permet un maintien plus aisé des fibres, et permet à la jauge d'intégrer une longueur de fibre notablement supérieure à la dimension de la surface de la structure contrôlée. La ou les fibres comportent normalement des réflecteurs tels que des réseaux de Bragg permettant le contrôle des signaux.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9521957.2 | 1995-10-26 | ||
| GBGB9521957.2A GB9521957D0 (en) | 1995-10-26 | 1995-10-26 | Strain gauge |
| PCT/GB1996/002606 WO1997015805A1 (fr) | 1995-10-26 | 1996-10-24 | Jauge de contrainte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2235482A1 true CA2235482A1 (fr) | 1997-05-01 |
Family
ID=10782952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2235482 Abandoned CA2235482A1 (fr) | 1995-10-26 | 1996-10-24 | Jauge de contrainte |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0857291A1 (fr) |
| JP (1) | JPH11513806A (fr) |
| AU (1) | AU7317596A (fr) |
| CA (1) | CA2235482A1 (fr) |
| GB (1) | GB9521957D0 (fr) |
| WO (1) | WO1997015805A1 (fr) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2807512B1 (fr) | 2000-04-11 | 2002-05-24 | Commissariat Energie Atomique | Inclinometre a reseau de bragg |
| ES2672789T3 (es) | 2004-01-23 | 2018-06-18 | Lm Wind Power International Technology Ii Aps | Dispositivo que incluye un sistema adaptado para uso en compensación de temperatura de mediciones de tensión de estructuras reforzadas con fibra |
| JP4609836B2 (ja) * | 2004-02-26 | 2011-01-12 | 古河電気工業株式会社 | 光ファイバセンサ |
| GB2440955A (en) * | 2006-08-18 | 2008-02-20 | Insensys Ltd | Wind turbine blade monitoring |
| FR2909446B1 (fr) * | 2006-11-30 | 2009-02-13 | Commissariat Energie Atomique | Dispositif et procede de mesure des deformations mecaniques d'un profile |
| CN101983325B (zh) | 2008-03-31 | 2013-04-24 | 维斯塔斯风力系统集团公司 | 用于风力涡轮机的光透射应变传感器 |
| GB2461532A (en) * | 2008-07-01 | 2010-01-06 | Vestas Wind Sys As | Sensor system and method for detecting deformation in a wind turbine component |
| GB2461566A (en) * | 2008-07-03 | 2010-01-06 | Vestas Wind Sys As | Embedded fibre optic sensor for mounting on wind turbine components and method of producing the same. |
| GB2463696A (en) | 2008-09-22 | 2010-03-24 | Vestas Wind Sys As | Edge-wise bending insensitive strain sensor system |
| GB2466433B (en) | 2008-12-16 | 2011-05-25 | Vestas Wind Sys As | Turbulence sensor and blade condition sensor system |
| KR100945149B1 (ko) * | 2008-12-19 | 2010-03-08 | 주식회사 금륜방재산업 | 초고층 건물의 방재 시스템 및 방법 |
| NL2002743C2 (nl) * | 2009-04-10 | 2010-10-12 | Stichting Energie | Inrichting en werkwijze voor het meten van rek. |
| GB2472437A (en) | 2009-08-06 | 2011-02-09 | Vestas Wind Sys As | Wind turbine rotor blade control based on detecting turbulence |
| JP5409243B2 (ja) * | 2009-10-09 | 2014-02-05 | 第一高周波工業株式会社 | 高温環境用光ファイバセンサ |
| GB2477529A (en) | 2010-02-04 | 2011-08-10 | Vestas Wind Sys As | A wind turbine optical wind sensor for determining wind speed and direction |
| GB2490086B (en) | 2010-11-08 | 2015-04-08 | Silixa Ltd | Fibre optic monitoring installation, apparatus and method |
| US9061425B2 (en) | 2013-10-15 | 2015-06-23 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Frame transfer device for an optical strain gauge structure |
| US10113862B2 (en) | 2013-12-01 | 2018-10-30 | Cmiws Co., Ltd. | Strain sensor and manufacturing method for strain sensor |
| CN115266075B (zh) * | 2022-09-26 | 2023-02-17 | 中交第一公路勘察设计研究院有限公司 | 鼓凸自感知的板式支座及制作方法、监测系统及监测方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4671659A (en) * | 1985-11-08 | 1987-06-09 | Martin Marietta Corporation | Fiber optic displacement sensor |
| US4996419A (en) * | 1989-12-26 | 1991-02-26 | United Technologies Corporation | Distributed multiplexed optical fiber Bragg grating sensor arrangeement |
| US5250802A (en) * | 1991-11-04 | 1993-10-05 | Teledyne Ryan Aeronautical, Division Of Teledyne Industries, Inc. | Fiber optic stress sensor for structural joints |
| FR2707754B1 (fr) * | 1993-07-12 | 1995-10-06 | Aerospatiale | Structure embarquée sur véhicule spatial, ayant des capteurs dimensionnels intégrés. |
| GB9317576D0 (en) * | 1993-08-24 | 1993-10-06 | British Aerospace | Fibre optic damage detection system |
-
1995
- 1995-10-26 GB GBGB9521957.2A patent/GB9521957D0/en active Pending
-
1996
- 1996-10-24 JP JP9516403A patent/JPH11513806A/ja active Pending
- 1996-10-24 AU AU73175/96A patent/AU7317596A/en not_active Abandoned
- 1996-10-24 WO PCT/GB1996/002606 patent/WO1997015805A1/fr not_active Application Discontinuation
- 1996-10-24 CA CA 2235482 patent/CA2235482A1/fr not_active Abandoned
- 1996-10-24 EP EP96935080A patent/EP0857291A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB9521957D0 (en) | 1996-01-03 |
| EP0857291A1 (fr) | 1998-08-12 |
| WO1997015805A1 (fr) | 1997-05-01 |
| AU7317596A (en) | 1997-05-15 |
| JPH11513806A (ja) | 1999-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |