CA1299389C - Microbend fiber optic strain gauge - Google Patents

Microbend fiber optic strain gauge

Info

Publication number
CA1299389C
CA1299389C CA000544687A CA544687A CA1299389C CA 1299389 C CA1299389 C CA 1299389C CA 000544687 A CA000544687 A CA 000544687A CA 544687 A CA544687 A CA 544687A CA 1299389 C CA1299389 C CA 1299389C
Authority
CA
Canada
Prior art keywords
plates
optical
signal
fiber
strain gauge
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.)
Expired - Fee Related
Application number
CA000544687A
Other languages
English (en)
French (fr)
Inventor
John W. Berthold
Stuart E. Reed
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elsag International BV
Original Assignee
Elsag International BV
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
Application filed by Elsag International BV filed Critical Elsag International BV
Application granted granted Critical
Publication of CA1299389C publication Critical patent/CA1299389C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/24Measuring 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
    • G01L1/242Measuring 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
    • G01L1/243Measuring 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
    • G01L1/245Measuring 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/16Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
CA000544687A 1986-10-30 1987-08-17 Microbend fiber optic strain gauge Expired - Fee Related CA1299389C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92496286A 1986-10-30 1986-10-30
US924,962 1986-10-30

Publications (1)

Publication Number Publication Date
CA1299389C true CA1299389C (en) 1992-04-28

Family

ID=25450986

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000544687A Expired - Fee Related CA1299389C (en) 1986-10-30 1987-08-17 Microbend fiber optic strain gauge

Country Status (6)

Country Link
JP (1) JPS63117205A (enrdf_load_stackoverflow)
CN (1) CN1016100B (enrdf_load_stackoverflow)
AU (1) AU598858B2 (enrdf_load_stackoverflow)
CA (1) CA1299389C (enrdf_load_stackoverflow)
GB (1) GB2196735B (enrdf_load_stackoverflow)
IN (1) IN167564B (enrdf_load_stackoverflow)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650670A1 (fr) * 1989-08-02 1991-02-08 Fiori Costantino Systeme de detection d'incendie ou de tout autre phenomene engendrant une elevation ou une baisse anormale de temperature par rapport a une reference fixee
US5039218A (en) * 1990-03-28 1991-08-13 Hughes Aircraft Company Testing of optical fiber by introducing multiple simulated peel location bends
GB2250813A (en) * 1990-12-15 1992-06-17 British Aerospace Weighing apparatus for vehicles
CN1090317C (zh) * 1994-11-29 2002-09-04 联合技术公司 光纤布拉格光栅护层分离探测
EP1709416B1 (en) 2004-01-23 2018-03-07 LM Wind Power International Technology II ApS Device including a system adapted for use in temperature compensation of strain measurements in fibre-reinforced structures
CN1300571C (zh) * 2004-08-24 2007-02-14 西安科技大学 埋入式微弯光纤传感器和微弯光纤传感器埋入与测试方法
CN101881633B (zh) * 2010-04-06 2012-11-28 西安金和光学科技有限公司 基于光纤弯曲损耗的弹簧型高精度光纤传感器
CN102221374B (zh) * 2010-04-19 2015-07-15 西安金和光学科技有限公司 扭转参量感测光纤传感装置
CN102829901A (zh) * 2011-06-14 2012-12-19 西安金和光学科技有限公司 波形槽柱体光纤传感装置
WO2012010099A1 (zh) * 2010-07-21 2012-01-26 西安金和光学科技有限公司 柱体光纤传感装置
WO2014131951A1 (fr) * 2013-02-28 2014-09-04 Osmos Sa Dispositif de mesure optique avec voie de reference et voie de mesure, et procede associe
CN103604540B (zh) * 2013-11-13 2015-06-10 中铁四局集团第一工程有限公司 光电式应力计
CN104359653B (zh) * 2014-10-23 2015-08-12 河海大学 一种光纤单双向弯曲曲率双通道跟踪监测仪及监测方法
CN105606276B (zh) * 2015-12-24 2018-06-12 中北大学 Mems光纤微弯压力传感器及其制备方法
CN106441661A (zh) * 2016-12-02 2017-02-22 西南交通大学 一种光纤光栅测力垫圈及锚杆测力系统
CN110234967A (zh) * 2017-02-02 2019-09-13 株式会社藤仓 光检测器及光检测器的制造方法
CN109620186A (zh) * 2019-01-30 2019-04-16 福州新易达光电科技有限公司 一种用于监测人体生命体征参数的光纤微弯传感器
GB2586974B (en) * 2019-09-06 2022-12-28 Nuron Ltd System for producing strain in a fibre
CN111707206B (zh) * 2020-06-04 2022-03-18 哈尔滨工程大学 一种带位置检测功能的量子点光纤微弯传感器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027540A3 (en) * 1979-09-11 1981-10-07 Hydroacoustics Inc. Optical sensor and transducer array system
US4436995A (en) * 1981-06-29 1984-03-13 General Electric Company Fiber optics transducers for sensing parameter magnitude
GB2125161A (en) * 1982-07-21 1984-02-29 Gen Electric Co Plc Optical fibre sensors
JPS5946805A (ja) * 1982-09-11 1984-03-16 Diesel Kiki Co Ltd 変位検出装置
IN165010B (enrdf_load_stackoverflow) * 1986-02-03 1989-07-29 Babcock & Wilcox Co
AU579041B2 (en) * 1986-05-09 1988-11-10 Thomas & Betts Corporation Method of and apparatus for fiber optic sensing
GB8704540D0 (en) * 1987-02-26 1987-04-01 Bicc Plc Optical sensors

Also Published As

Publication number Publication date
IN167564B (enrdf_load_stackoverflow) 1990-11-17
GB2196735B (en) 1991-01-23
GB2196735A (en) 1988-05-05
GB8719390D0 (en) 1987-09-23
CN87107210A (zh) 1988-08-03
CN1016100B (zh) 1992-04-01
AU7889487A (en) 1988-05-05
AU598858B2 (en) 1990-07-05
JPS63117205A (ja) 1988-05-21

Similar Documents

Publication Publication Date Title
CA1299389C (en) Microbend fiber optic strain gauge
US5594819A (en) Field-mountable fiber optic sensors for long term strain monitoring in hostile environments
Berthold et al. Design and characterization of a high temperature fiber-optic pressure transducer
US5321257A (en) Fiber optic bending and positioning sensor including a light emission surface formed on a portion of a light guide
US5020379A (en) Microbend fiber optic strain gauge
US6776049B2 (en) System and method for measuring stress at an interface
US6671055B1 (en) Interferometric sensors utilizing bulk sensing mediums extrinsic to the input/output optical fiber
JP2983018B1 (ja) 光ファイバセンサ
Lee et al. Monitoring of fatigue damage of composite structures by using embeddedintensity-based optical fiber sensors
US6513390B1 (en) Temperature insensitive fiber-optic torque and strain sensor
US5258614A (en) Optical fiber loop temperature sensor
US5414507A (en) Fiber optics pressure sensor transducer having a temperature compensator
CA2334333A1 (en) Optical fiber sensor
US9797795B2 (en) Distributed pressure measurement by embedded fiber optic strain sensor
US4950886A (en) Partially reflecting optical fiber splice for temperature and strain measurement
US4891511A (en) Fiber optic microbend sensor with braided fibers
US20180172536A1 (en) FIBER OPTIC PRESSURE APPARATUS, METHODS, and APPLICATIONS
US5038620A (en) Coriolis mass flow meter
US6870975B1 (en) Fiber optic sensor usable over wide range of gage lengths
Choquet et al. New generation of Fabry-Perot fiber optic sensors for monitoring of structures
Hughes et al. Mechanical properties of adhesives
Tatti et al. Production and use of an interferometric optical strain gauge with comparison to conventional techniques
Knapp et al. Dynamic strain measurement by means of electrical methods and fibre optics
Abu-Mahfouz Strain Gauge
JPS59111030A (ja) 歪み測定用の光フアイバ−センサ

Legal Events

Date Code Title Description
MKLA Lapsed