ATE137586T1 - Methode zum detektieren und messen von äusseren einwirkungen - Google Patents

Methode zum detektieren und messen von äusseren einwirkungen

Info

Publication number
ATE137586T1
ATE137586T1 AT90904964T AT90904964T ATE137586T1 AT E137586 T1 ATE137586 T1 AT E137586T1 AT 90904964 T AT90904964 T AT 90904964T AT 90904964 T AT90904964 T AT 90904964T AT E137586 T1 ATE137586 T1 AT E137586T1
Authority
AT
Austria
Prior art keywords
pct
fibre
sensor area
date sep
beams
Prior art date
Application number
AT90904964T
Other languages
English (en)
Inventor
Stefan Karlsson
Original Assignee
Stefan Karlsson
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 Stefan Karlsson filed Critical Stefan Karlsson
Application granted granted Critical
Publication of ATE137586T1 publication Critical patent/ATE137586T1/de

Links

Classifications

    • 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
    • G01D5/35383—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 multiple sensor devices using multiplexing techniques
    • 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
    • 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
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3181—Reflectometers dealing with polarisation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optical Transform (AREA)
  • Measuring Fluid Pressure (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Eye Examination Apparatus (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
AT90904964T 1989-03-08 1990-02-14 Methode zum detektieren und messen von äusseren einwirkungen ATE137586T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900805A SE463385B (sv) 1989-03-08 1989-03-08 Saett att utnyttja en optisk fiber som sensor

Publications (1)

Publication Number Publication Date
ATE137586T1 true ATE137586T1 (de) 1996-05-15

Family

ID=20375271

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90904964T ATE137586T1 (de) 1989-03-08 1990-02-14 Methode zum detektieren und messen von äusseren einwirkungen

Country Status (9)

Country Link
US (1) US5206923A (de)
EP (1) EP0462197B1 (de)
JP (1) JP2936352B2 (de)
AT (1) ATE137586T1 (de)
DE (1) DE69026817T2 (de)
FI (1) FI102420B (de)
NO (1) NO178126C (de)
SE (1) SE463385B (de)
WO (1) WO1990010883A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE459052B (sv) * 1987-09-09 1989-05-29 Foersvarets Forskningsanstalt Saett att detektera yttre paaverkan paa en optisk kabel
US5844702A (en) * 1992-11-05 1998-12-01 Sprint Communications Co, L.P. Bidirectional optical fiber transmission system with reflection signal monitor
US5532860A (en) * 1995-03-20 1996-07-02 General Electric Company Spatial synchronization for optical communication system
EP1373837B1 (de) * 2001-03-27 2010-10-20 Council of Scientific and Industrial Research Multimodaler faseroptischer speckle-sensor
DE10345183B4 (de) 2003-09-29 2005-10-13 Siemens Ag Vorrichtung zum Erfassen von Kontaktabbrand in Schaltgeräten
CA2571084A1 (en) * 2004-06-15 2006-01-05 Optellios, Inc. Phase responsive optical fiber sensor
US8395782B2 (en) * 2004-06-15 2013-03-12 Optellios, Inc. Detection and location of boundary intrusion, using composite variables derived from phase measurements
US7139476B2 (en) * 2004-06-15 2006-11-21 Optellios, Inc. Distributed fiber sensor with detection and signal processing using polarization state management
US7499176B2 (en) * 2007-02-13 2009-03-03 Future Fibre Technologies Pty Ltd Apparatus and method for using a counter-propagating signal method for locating events
ZA200705625B (en) * 2005-01-11 2008-09-25 Future Fibre Tech Pty Ltd Apparatus and method for using a counter-propagating signal method for locating events
US20140270039A1 (en) * 2013-03-14 2014-09-18 Westinghouse Electric Company Llc Nuclear radiation dosimeter using stress induced birefringence changes in fiber optic cables
US10859408B2 (en) * 2016-04-14 2020-12-08 Nec Corporation Optical fiber sensor and optical fiber sensor system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854792A (en) * 1973-03-22 1974-12-17 Atomic Energy Commission Fiber optic security seal
US4070091A (en) * 1976-04-16 1978-01-24 Northern Telecom Limited Optical fibre with enhanced security
US4297684A (en) * 1979-03-26 1981-10-27 Honeywell Inc. Fiber optic intruder alarm system
SE438396B (sv) * 1983-09-01 1985-04-15 Ericsson Telefon Ab L M Anordning for att detektera avtappning av ljusenergi fran optiska fibrer
US4770535A (en) * 1985-02-08 1988-09-13 The Board Of Trustees Of The Leland Stanford Junior University Distributed sensor array and method using a pulsed signal source
US4697926A (en) * 1985-02-08 1987-10-06 The Board Of Trustees Of The Leland Stanford Junior University Coherent distributed sensor and method using short coherence length sources
AU579041B2 (en) * 1986-05-09 1988-11-10 Thomas & Betts Corporation Method of and apparatus for fiber optic sensing
US4784453A (en) * 1987-02-02 1988-11-15 Litton Systems, Inc. Backward-flow ladder architecture and method
US4929049A (en) * 1988-01-29 1990-05-29 Fiberchem, Inc. Fiber optic refractive index sensor using a metal clad
US5026139A (en) * 1988-01-29 1991-06-25 Fiberchem Inc. Fiber optic refractive index sensor using metal cladding
US4904940A (en) * 1988-03-18 1990-02-27 The Boeing Company Fiber-optic multicomponent magnetic field gradiometer for first, second and higher order derivatives
US4904863A (en) * 1988-11-25 1990-02-27 Loral Corporation Polarimetric optical fiber pressure sensor

Also Published As

Publication number Publication date
EP0462197B1 (de) 1996-05-01
FI914198A0 (fi) 1991-09-05
DE69026817D1 (de) 1996-06-05
SE8900805D0 (sv) 1989-03-08
US5206923A (en) 1993-04-27
DE69026817T2 (de) 1996-11-28
FI102420B1 (fi) 1998-11-30
JP2936352B2 (ja) 1999-08-23
SE8900805L (sv) 1990-09-09
SE463385B (sv) 1990-11-12
NO178126C (no) 1996-01-24
EP0462197A1 (de) 1991-12-27
NO178126B (no) 1995-10-16
FI102420B (fi) 1998-11-30
NO913526L (no) 1991-09-06
NO913526D0 (no) 1991-09-06
WO1990010883A1 (en) 1990-09-20
JPH04504019A (ja) 1992-07-16

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Legal Events

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