GB2196735B - Strain gauges - Google Patents

Strain gauges

Info

Publication number
GB2196735B
GB2196735B GB8719390A GB8719390A GB2196735B GB 2196735 B GB2196735 B GB 2196735B GB 8719390 A GB8719390 A GB 8719390A GB 8719390 A GB8719390 A GB 8719390A GB 2196735 B GB2196735 B GB 2196735B
Authority
GB
United Kingdom
Prior art keywords
strain gauges
gauges
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.)
Expired - Fee Related
Application number
GB8719390A
Other versions
GB2196735A (en
GB8719390D0 (en
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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of GB8719390D0 publication Critical patent/GB8719390D0/en
Publication of GB2196735A publication Critical patent/GB2196735A/en
Application granted granted Critical
Publication of GB2196735B publication Critical patent/GB2196735B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G01L1/243—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
GB8719390A 1986-10-30 1987-08-17 Strain gauges Expired - Fee Related GB2196735B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92496286A 1986-10-30 1986-10-30

Publications (3)

Publication Number Publication Date
GB8719390D0 GB8719390D0 (en) 1987-09-23
GB2196735A GB2196735A (en) 1988-05-05
GB2196735B true GB2196735B (en) 1991-01-23

Family

ID=25450986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8719390A Expired - Fee Related GB2196735B (en) 1986-10-30 1987-08-17 Strain gauges

Country Status (6)

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

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650670A1 (en) * 1989-08-02 1991-02-08 Fiori Costantino System for detecting a fire or any other phenomenon generating an abnormal rise or fall in temperature with respect to a fixed reference
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
EP0795117B1 (en) 1994-11-29 1999-01-27 United Technologies Corporation Optical fiber bragg grating coating removal detection
DK1709416T3 (en) 2004-01-23 2018-06-18 Lm Wind Power Int Tech Ii Aps Device comprising a system adapted for use in temperature compensation for load measurements in fiber-reinforced structures
CN1300571C (en) * 2004-08-24 2007-02-14 西安科技大学 Snake type fiber-optical sensor burying and detecting method and its snake type fibre-optical sensor
CN101881633B (en) 2010-04-06 2012-11-28 西安金和光学科技有限公司 Spring type high-precision optical fiber sensor based on optical fiber bending loss
CN102221374B (en) * 2010-04-19 2015-07-15 西安金和光学科技有限公司 Fiber sensing device for sensing torque parameters
CN102829901A (en) * 2011-06-14 2012-12-19 西安金和光学科技有限公司 Optical fiber sensing device waveform grooves and cylinder body
WO2012010099A1 (en) * 2010-07-21 2012-01-26 西安金和光学科技有限公司 Optic fiber cylinder sensor
EP2962080B1 (en) * 2013-02-28 2021-05-19 Osmos Group Optical measurement device having a reference channel and a measurement channel, and related method
CN103604540B (en) * 2013-11-13 2015-06-10 中铁四局集团第一工程有限公司 Photoelectric stressometer
CN104359653B (en) * 2014-10-23 2015-08-12 河海大学 A kind of optical fiber single-direction and dual-direction bending curvature binary channels tracking and monitoring instrument and monitoring method
CN105606276B (en) * 2015-12-24 2018-06-12 中北大学 MEMS optical fiber micro-bending pressure sensors and preparation method thereof
CN106441661A (en) * 2016-12-02 2017-02-22 西南交通大学 Fiber grating force-measuring gasket and anchor rod force-measuring system
EP3578937A1 (en) * 2017-02-02 2019-12-11 Fujikura Ltd. Photodetector and method for manufacturing photodetector
CN109620186A (en) * 2019-01-30 2019-04-16 福州新易达光电科技有限公司 A kind of optical fiber micro-bending sensor for monitoring human vital sign parameter
GB2586974B (en) * 2019-09-06 2022-12-28 Nuron Ltd System for producing strain in a fibre
CN111707206B (en) * 2020-06-04 2022-03-18 哈尔滨工程大学 Quantum dot optical fiber micro-bending sensor with position detection function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027540A2 (en) * 1979-09-11 1981-04-29 Hydroacoustics Inc. Optical sensor and transducer array system
GB2125161A (en) * 1982-07-21 1984-02-29 Gen Electric Co Plc Optical fibre sensors
US4436995A (en) * 1981-06-29 1984-03-13 General Electric Company Fiber optics transducers for sensing parameter magnitude

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5946805A (en) * 1982-09-11 1984-03-16 Diesel Kiki Co Ltd Displacement detector
IN165010B (en) * 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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027540A2 (en) * 1979-09-11 1981-04-29 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A1 79/00377 *

Also Published As

Publication number Publication date
CN87107210A (en) 1988-08-03
JPS63117205A (en) 1988-05-21
AU7889487A (en) 1988-05-05
GB2196735A (en) 1988-05-05
IN167564B (en) 1990-11-17
CA1299389C (en) 1992-04-28
AU598858B2 (en) 1990-07-05
CN1016100B (en) 1992-04-01
GB8719390D0 (en) 1987-09-23

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970817