CA2009137A1 - Measuring device with a beam waveguide bending sensor for monitoring bridge construction components or the like - Google Patents

Measuring device with a beam waveguide bending sensor for monitoring bridge construction components or the like

Info

Publication number
CA2009137A1
CA2009137A1 CA2009137A CA2009137A CA2009137A1 CA 2009137 A1 CA2009137 A1 CA 2009137A1 CA 2009137 A CA2009137 A CA 2009137A CA 2009137 A CA2009137 A CA 2009137A CA 2009137 A1 CA2009137 A1 CA 2009137A1
Authority
CA
Canada
Prior art keywords
measuring device
bending sensor
light
fixed
bridge construction
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.)
Granted
Application number
CA2009137A
Other languages
French (fr)
Other versions
CA2009137C (en
Inventor
Rainer Lessing
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.)
Felten and Guilleaume Energietechnik AG
Original Assignee
Rainer Lessing
Felten & Guilleaume Energietechnik Aktiengesellschaft
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 Rainer Lessing, Felten & Guilleaume Energietechnik Aktiengesellschaft filed Critical Rainer Lessing
Publication of CA2009137A1 publication Critical patent/CA2009137A1/en
Application granted granted Critical
Publication of CA2009137C publication Critical patent/CA2009137C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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]
    • G01M11/086—Details about the embedment of the optical fiber within the DUT
    • 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
    • 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
    • G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges
    • 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
    • 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
    • G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection

Abstract

A measuring device with a light wave conductor-bending sensor for monitoring bridge structures comprises a light emitter and a light receiver, a multi-mode light wave conductor arranged to extend along a structural part and having two ends connected with the light emitter and the light receiver, respectively, an elongated plate having a lower side arranged to be placed on and connected with the structural part and also having an upper side provided with a longitudinal groove, two sliding rails arranged in the longitudinal groove and having outer ends fixed to the plate and inner ends spaced from one another to form an intermediate space and movable relative to the plate. The light wave conductor is fixed with one of the sliding rails, then extends through the intermediate space and forms a freely movable curve, and then exztends along and is fixed to the other of the movable rails.
CA002009137A 1989-02-02 1990-02-01 Measuring device with a beam waveguide bending sensor for monitoring bridge construction components or the like Expired - Fee Related CA2009137C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP3902997.2 1989-02-02
DE3902997A DE3902997C1 (en) 1989-02-02 1989-02-02
DE8901113U DE8901113U1 (en) 1989-02-02 1989-02-02

Publications (2)

Publication Number Publication Date
CA2009137A1 true CA2009137A1 (en) 1990-08-02
CA2009137C CA2009137C (en) 1996-11-12

Family

ID=25877332

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002009137A Expired - Fee Related CA2009137C (en) 1989-02-02 1990-02-01 Measuring device with a beam waveguide bending sensor for monitoring bridge construction components or the like

Country Status (7)

Country Link
US (1) US4972073A (en)
EP (1) EP0380764B1 (en)
JP (1) JPH02234006A (en)
AT (1) ATE75848T1 (en)
CA (1) CA2009137C (en)
DE (3) DE3902997C1 (en)
ES (1) ES2031336T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047094A (en) * 1998-06-02 2000-04-04 Dalhousie University Composite carrier assembly having an encapsulated sensor and an associated fabrication method

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5093569A (en) * 1990-09-21 1992-03-03 The United States Of America As Represented By The Secretary Of The Navy Tapered optical fiber sensor
US5101453A (en) * 1991-07-05 1992-03-31 Cascade Microtech, Inc. Fiber optic wafer probe
DE4305364C1 (en) * 1992-10-20 1994-04-28 Schlattl Werner Bavaria Tech Welding jaws, esp. for spot welding - includes fibre-optic sensor element for electrode force monitoring
DE4332807C2 (en) * 1992-10-20 2002-07-18 Schlattl Werner Bavaria Tech Opto-electrical sensor
DE4302457A1 (en) * 1993-01-29 1994-08-04 Schlattl Werner Bavaria Tech Spot-welding electrode holder and actuator unit
DE4332621A1 (en) * 1993-09-24 1995-03-30 Sicom Ges Fuer Sensor Und Vors Measuring device for monitoring structures, terrain areas or the like
US5517861A (en) * 1994-10-11 1996-05-21 United Technologies Corporation High temperature crack monitoring apparatus
NO303470B1 (en) * 1994-12-16 1998-07-13 Safety One As Method and system for continuous and global monitoring of dynamic loads
FR2748325B1 (en) * 1996-05-03 1998-08-07 Deha Com FLEXION DETECTION METHOD AND DEVICES, AND STRUCTURE SUCH AS GEOTECHNICAL OR BUILDING, EQUIPPED WITH SUCH A DEVICE
DE19712407A1 (en) * 1997-03-25 1998-10-01 Gloetzl Ges Fuer Baumestechnik Position measuring device
FR2807829B1 (en) * 2000-04-17 2002-07-12 Bernard Hodac BENDING DETECTOR AND / OR DIFFERENTIAL SETTLEMENT (S) AND METHOD FOR MONITORING A STRUCTURE
DE10031412C2 (en) * 2000-04-18 2002-11-28 Advanced Optics Solutions Gmbh Optical sensor arrangement for strain and compression measurement
DE20114544U1 (en) 2000-12-04 2002-02-21 Cascade Microtech Inc wafer probe
US6970634B2 (en) * 2001-05-04 2005-11-29 Cascade Microtech, Inc. Fiber optic wafer probe
WO2004059249A1 (en) * 2002-12-30 2004-07-15 Fabio Salsedo Goniometric sensor
US7057404B2 (en) 2003-05-23 2006-06-06 Sharp Laboratories Of America, Inc. Shielded probe for testing a device under test
NL1024171C2 (en) * 2003-08-27 2005-03-01 Amc Amsterdam Force sensor and laparoscopic instrument provided with such a force sensor.
DE202004021093U1 (en) 2003-12-24 2006-09-28 Cascade Microtech, Inc., Beaverton Differential probe for e.g. integrated circuit, has elongate probing units interconnected to respective active circuits that are interconnected to substrate by respective pair of flexible interconnects
KR20070058522A (en) 2004-09-13 2007-06-08 캐스케이드 마이크로테크 인코포레이티드 Double sided probing structures
US7535247B2 (en) 2005-01-31 2009-05-19 Cascade Microtech, Inc. Interface for testing semiconductors
US7656172B2 (en) 2005-01-31 2010-02-02 Cascade Microtech, Inc. System for testing semiconductors
US20080253112A1 (en) * 2007-04-10 2008-10-16 Nash Alan C Hand rail system railing connector
US7764072B2 (en) 2006-06-12 2010-07-27 Cascade Microtech, Inc. Differential signal probing system
US7723999B2 (en) 2006-06-12 2010-05-25 Cascade Microtech, Inc. Calibration structures for differential signal probing
US7403028B2 (en) 2006-06-12 2008-07-22 Cascade Microtech, Inc. Test structure and probe for differential signals
US7876114B2 (en) 2007-08-08 2011-01-25 Cascade Microtech, Inc. Differential waveguide probe
DE102009018300A1 (en) 2009-04-22 2010-10-28 Hottinger Baldwin Messtechnik Gmbh Optical strain gauge
US8405822B2 (en) 2009-04-22 2013-03-26 Hottinger Baldwin Messtechnik Gmbh Optical strain gauge comprising a fiber Bragg grating
US8297129B2 (en) * 2009-06-18 2012-10-30 Muskopf Brian A Instrument mounting system and method
JP6523178B2 (en) 2013-12-01 2019-05-29 株式会社シミウス Distortion sensor and method of manufacturing distortion sensor
JP6301963B2 (en) * 2013-12-27 2018-03-28 株式会社シミウス Strain sensor and installation method of strain sensor

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1601341A (en) * 1978-05-24 1981-10-28 Emi Ltd Examining structures for the formation of cracks
DE3015391C2 (en) * 1980-04-22 1986-12-04 Philips Kommunikations Industrie AG, 8500 Nürnberg Method for checking physical load variables to be monitored on and / or in a component
US4477725A (en) * 1981-08-27 1984-10-16 Trw Inc. Microbending of optical fibers for remote force measurement
EP0082820A3 (en) * 1981-12-21 1984-03-21 Battelle Memorial Institute Optical fibre pressure detector
DE3305234C2 (en) * 1983-02-16 1986-02-27 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Tensile wire made from a fiber-reinforced resin structure with at least one optical waveguide enclosed therein
GB8322486D0 (en) * 1983-08-20 1983-09-21 Nmi Ltd Crack monitors
DE3415855A1 (en) * 1984-04-28 1985-11-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Fibre-optic measuring device for measuring a tensile stress or flexure occurring on a component
US4636638A (en) * 1984-10-12 1987-01-13 The United States Of America As Represented By The Secretary Of The Navy Remote optical crack sensing system including fiberoptics
US4671659A (en) * 1985-11-08 1987-06-09 Martin Marietta Corporation Fiber optic displacement sensor
US4751690A (en) * 1986-05-12 1988-06-14 Gould Inc. Fiber optic interferometric hydrophone
DE3635053C2 (en) * 1986-10-15 1995-09-28 Strabag Ag Method for monitoring the deformations of components by means of optical fibers and optical fibers for carrying out the method and method for its production
GB8704540D0 (en) * 1987-02-26 1987-04-01 Bicc Plc Optical sensors
US4860586A (en) * 1988-01-20 1989-08-29 The Babcock & Wilcox Company Fiberoptic microbend accelerometer
US4918305A (en) * 1988-08-01 1990-04-17 General Motors Corporation Fiber optic pressure sensor using pressure sensitive fiber different from input and output fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047094A (en) * 1998-06-02 2000-04-04 Dalhousie University Composite carrier assembly having an encapsulated sensor and an associated fabrication method

Also Published As

Publication number Publication date
EP0380764B1 (en) 1992-05-06
ES2031336T3 (en) 1992-12-01
JPH02234006A (en) 1990-09-17
DE58901344D1 (en) 1992-06-11
EP0380764A1 (en) 1990-08-08
DE3902997C1 (en) 1990-04-19
DE8901113U1 (en) 1990-03-01
CA2009137C (en) 1996-11-12
US4972073A (en) 1990-11-20
ATE75848T1 (en) 1992-05-15

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