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IT1232330B - Sensore a fibra ottica polarimetrico - Google Patents

Sensore a fibra ottica polarimetrico

Info

Publication number
IT1232330B
IT1232330B IT8921681A IT2168189A IT1232330B IT 1232330 B IT1232330 B IT 1232330B IT 8921681 A IT8921681 A IT 8921681A IT 2168189 A IT2168189 A IT 2168189A IT 1232330 B IT1232330 B IT 1232330B
Authority
IT
Italy
Prior art keywords
optical fibre
signals
light signal
reference light
optical fiber
Prior art date
Application number
IT8921681A
Other languages
English (en)
Other versions
IT8921681A0 (it
Inventor
Mario Martinelli
Valeria Gusmeroli
Paolo Vavassori
Original Assignee
Cise Spa
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 Cise Spa filed Critical Cise Spa
Priority to IT8921681A priority Critical patent/IT1232330B/it
Publication of IT8921681A0 publication Critical patent/IT8921681A0/it
Priority to DE9090202383T priority patent/DE69001341T2/de
Priority to EP90202383A priority patent/EP0417848B1/en
Priority to US07/579,866 priority patent/US5072113A/en
Priority to AT90202383T priority patent/ATE88269T1/de
Priority to JP2240178A priority patent/JPH03130616A/ja
Application granted granted Critical
Publication of IT1232330B publication Critical patent/IT1232330B/it

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Light Guides In General And Applications Therefor (AREA)
IT8921681A 1989-09-12 1989-09-12 Sensore a fibra ottica polarimetrico IT1232330B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT8921681A IT1232330B (it) 1989-09-12 1989-09-12 Sensore a fibra ottica polarimetrico
DE9090202383T DE69001341T2 (de) 1989-09-12 1990-09-07 Faseroptischer polarimetrischer sensor.
EP90202383A EP0417848B1 (en) 1989-09-12 1990-09-07 Polarimetric fibre-optic sensor
US07/579,866 US5072113A (en) 1989-09-12 1990-09-07 Polarimetric fibre-optic sensor having deformation means
AT90202383T ATE88269T1 (de) 1989-09-12 1990-09-07 Faseroptischer polarimetrischer sensor.
JP2240178A JPH03130616A (ja) 1989-09-12 1990-09-12 偏光測定フアイバー光センサー

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8921681A IT1232330B (it) 1989-09-12 1989-09-12 Sensore a fibra ottica polarimetrico

Publications (2)

Publication Number Publication Date
IT8921681A0 IT8921681A0 (it) 1989-09-12
IT1232330B true IT1232330B (it) 1992-01-28

Family

ID=11185309

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8921681A IT1232330B (it) 1989-09-12 1989-09-12 Sensore a fibra ottica polarimetrico

Country Status (6)

Country Link
US (1) US5072113A (it)
EP (1) EP0417848B1 (it)
JP (1) JPH03130616A (it)
AT (1) ATE88269T1 (it)
DE (1) DE69001341T2 (it)
IT (1) IT1232330B (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037077A1 (de) * 1990-11-22 1992-05-27 Hilti Ag Verfahren und einrichtung zur faseroptischen kraftmessung
US5336883A (en) * 1991-05-03 1994-08-09 Focas Limited Optical fiber sensor for producing a variable transverse strain in a localized portion of the fiber
GB9109715D0 (en) * 1991-05-03 1991-06-26 Cookson Group Plc Remote sensing using fibre optics
GB9118780D0 (en) * 1991-09-03 1991-10-16 Focas Ltd A sensor
DE4344856A1 (de) * 1993-12-29 1995-07-06 Abb Research Ltd Faseroptischer Transmissionssensor mit Modulator
DE19605717C1 (de) * 1996-02-16 1997-05-28 Abb Research Ltd Faseroptische Meßeinrichtung
GB2345129A (en) * 1998-12-21 2000-06-28 Asea Brown Boveri Optical Sensor Using Polarised Light
CN101871788B (zh) * 2010-06-04 2012-05-23 北京高光科技有限公司 测量保偏光纤和双折射介质的分布式偏振串扰方法及装置
FR3013449B1 (fr) * 2013-11-18 2015-11-13 Thales Sa Capteur a fibre optique grande sensibilite
US20180149537A1 (en) * 2016-11-30 2018-05-31 Fiber Optic Sensor Systems Technology Corporation Dual acoustic pressure and hydrophone sensor array system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536088A (en) * 1982-09-17 1985-08-20 Rashleigh Scott C Polarimetric Fabry-Perot sensor
FR2535464A1 (fr) * 1982-10-28 1984-05-04 Commissariat Energie Atomique Dispositif de mesure de temperature et/ou d'intensite electrique a effet faraday
GB8400985D0 (en) * 1984-01-14 1984-02-15 Jackson D A Polarimetric fibre sensor
WO1986000402A1 (en) * 1984-06-30 1986-01-16 Kent Scientific And Industrial Projects Limited Interferometric sensor
US4564289A (en) * 1984-07-31 1986-01-14 Geo-Centers, Inc. Single mode optical fiber polarimetric stress sensor having optical common mode rejection
JPH01158326A (ja) * 1987-09-11 1989-06-21 Toshiba Corp 温度測定装置
US4906068A (en) * 1988-09-01 1990-03-06 Minnesota Mining And Manufacturing Company Polarization-maintaining optical fibers for coupler fabrication
US4904863A (en) * 1988-11-25 1990-02-27 Loral Corporation Polarimetric optical fiber pressure sensor
US4896942A (en) * 1989-02-03 1990-01-30 Minnesota Mining And Manufacturing Company Polarization-maintaining optical fiber

Also Published As

Publication number Publication date
IT8921681A0 (it) 1989-09-12
DE69001341T2 (de) 1993-08-12
EP0417848B1 (en) 1993-04-14
ATE88269T1 (de) 1993-04-15
EP0417848A1 (en) 1991-03-20
JPH03130616A (ja) 1991-06-04
DE69001341D1 (de) 1993-05-19
US5072113A (en) 1991-12-10

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960919