NO20052616L - Optisk sporre- og sensorsystem. - Google Patents

Optisk sporre- og sensorsystem.

Info

Publication number
NO20052616L
NO20052616L NO20052616A NO20052616A NO20052616L NO 20052616 L NO20052616 L NO 20052616L NO 20052616 A NO20052616 A NO 20052616A NO 20052616 A NO20052616 A NO 20052616A NO 20052616 L NO20052616 L NO 20052616L
Authority
NO
Norway
Prior art keywords
soa
optical
optically coupled
pulses
sensor system
Prior art date
Application number
NO20052616A
Other languages
English (en)
Other versions
NO341810B1 (no
NO20052616D0 (no
Inventor
Lorna Anne Everall
Glynn David Lloyd
Original Assignee
Aston Photonic Tech Ltd
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
Priority claimed from EP02258640A external-priority patent/EP1432149B1/en
Application filed by Aston Photonic Tech Ltd filed Critical Aston Photonic Tech Ltd
Publication of NO20052616D0 publication Critical patent/NO20052616D0/no
Publication of NO20052616L publication Critical patent/NO20052616L/no
Publication of NO341810B1 publication Critical patent/NO341810B1/no

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Transform (AREA)

Abstract

Et optisk spørresystem 10 omfatter et optisk forsterkende og signalutvelgende middel, i form av en halvleder optisk forsterker (SOA) 14 og en optisk kilde 12, 14. Driftsmidler 22 (en elektrisk pulsgenerator drevet av en variabel frekvensoscillator) er anordnet til å generere elektriske driftpulser (se innsatt (a)) som er anvendt på SOA'en 14 for å slå på og av SOA'en 14. Den optiske kilden omfatter en super-lysemitterende diode (SLD) 12, den kontinuerlige bølgeutgangen fra hvilken portes inn i optiske pulser av SOA'en 14. SOA'en 14 er optisk koblet til bølgelederen 16 som inneholder en matrise av reflekterende optiske elementer (gitre G) som skal spørres. Spørresystemet omfatter videre optiske detekteringsmidler 18, optisk koblet til SOA'en 14, som kan evaluere bølgelengden til en returnert optisk puls overført av SOA'en 14.
NO20052616A 2002-12-16 2005-05-31 Optisk bølgelengdegitter-spørresystem og bølgelengdegitter-sensorsystem NO341810B1 (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02258640A EP1432149B1 (en) 2002-12-16 2002-12-16 Optical waveguide grating interrogation system and sensor system
US10/665,840 US7046349B2 (en) 2002-12-16 2003-09-19 Optical interrogation system and sensor system
PCT/GB2003/005497 WO2004056017A1 (en) 2002-12-16 2003-12-15 Optical interrogation system and sensor system

Publications (3)

Publication Number Publication Date
NO20052616D0 NO20052616D0 (no) 2005-05-31
NO20052616L true NO20052616L (no) 2005-09-12
NO341810B1 NO341810B1 (no) 2018-01-29

Family

ID=32598799

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052616A NO341810B1 (no) 2002-12-16 2005-05-31 Optisk bølgelengdegitter-spørresystem og bølgelengdegitter-sensorsystem

Country Status (3)

Country Link
AU (1) AU2003288565A1 (no)
NO (1) NO341810B1 (no)
WO (1) WO2004056017A1 (no)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1635034B1 (en) * 2004-08-27 2009-06-03 Schlumberger Holdings Limited Pipeline bend radius and shape sensor and measurement apparatus
US7388657B2 (en) 2005-08-22 2008-06-17 Tyco Telecommunications (Us) Inc. System and method for monitoring an optical communication system
FR2901548B1 (fr) 2006-05-24 2008-07-25 Lemantec Internat Sarl Organe de levage a moyens de mesure de charge et /ou de contraintes
GB0612868D0 (en) * 2006-06-29 2006-08-09 Schlumberger Holdings Fiber optic temperature monitoring sensor for use on sub-sea pipelines to predict hydrate formation
GB2440953B (en) 2006-08-18 2009-09-30 Insensys Ltd Wind turbines
US7809279B2 (en) 2007-07-27 2010-10-05 Tyco Electronics Subsea Communications Llc System and method using differential loop gain for fault identification in line monitoring equipment
CA2653351A1 (en) 2008-03-28 2009-09-28 Insensys Limited Wind turbine monitoring
GB2464477B (en) 2008-10-15 2011-09-07 Insensys Ltd Apparatus for interrogating fibre Bragg gratings
GB0919153D0 (en) 2009-10-31 2009-12-16 Ct Integrated Photonics Ltd Filtered optical source
GB2485340A (en) * 2010-11-02 2012-05-16 Vestas Wind Sys As A wind turbine comprising rotor and tower bending sensors
CN102674144A (zh) * 2012-05-24 2012-09-19 同济大学 一种基于光纤光栅传感器的起重机吊具测力装置
JP5963563B2 (ja) * 2012-06-20 2016-08-03 オリンパス株式会社 湾曲センサ
US8718419B2 (en) * 2012-08-15 2014-05-06 Siemens Energy, Inc. Frame foot loading measurement system using fiber optic sensing technique
US20170021914A1 (en) 2013-12-11 2017-01-26 Moog Inc. Fiber optic sensing and control system
DK3601783T3 (da) 2017-05-09 2022-05-02 Siemens Gamesa Renewable Energy As Vindmøllerotorvinge med indlejrede sensorer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010013934A1 (en) * 1997-11-15 2001-08-16 Malcolm Paul Varnham Seismic sensor with interferometric sensing apparatus
US6571027B2 (en) * 1999-10-07 2003-05-27 Peter W. E. Smith Method and devices for time domain demultiplexing of serial fiber bragg grating sensor arrays

Also Published As

Publication number Publication date
AU2003288565A1 (en) 2004-07-09
NO341810B1 (no) 2018-01-29
NO20052616D0 (no) 2005-05-31
WO2004056017A1 (en) 2004-07-01

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: MOOG INSENSYS LTD, GB

MM1K Lapsed by not paying the annual fees