NO20052678L - Flerpuls heterodyn mellombaerebolgeavsporring av interferometriske sensorer - Google Patents

Flerpuls heterodyn mellombaerebolgeavsporring av interferometriske sensorer

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Publication number
NO20052678L
NO20052678L NO20052678A NO20052678A NO20052678L NO 20052678 L NO20052678 L NO 20052678L NO 20052678 A NO20052678 A NO 20052678A NO 20052678 A NO20052678 A NO 20052678A NO 20052678 L NO20052678 L NO 20052678L
Authority
NO
Norway
Prior art keywords
pulse
interferometric sensors
sensors
pulses
interrogation
Prior art date
Application number
NO20052678A
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English (en)
Other versions
NO338819B1 (no
NO20052678D0 (no
Inventor
Erlend Ronnekleiv
Ole Henrik Waagaard
Original Assignee
Optoplan As
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 Optoplan As filed Critical Optoplan As
Publication of NO20052678D0 publication Critical patent/NO20052678D0/no
Publication of NO20052678L publication Critical patent/NO20052678L/no
Publication of NO338819B1 publication Critical patent/NO338819B1/no

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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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

En metode for å avspørre tidsmultipleksede interferometriske sensorer ved å bruke avspørringspulser på en måte som øker tillatt driftssyklus for avspørringspulsen og som forbedrer signal-støy forholdet. I hver TDM-repetisjonsperiode bli det generert en sekvens med multiple avspørringspulser. Pulsene i sekvensen separeres av en tid som er lik sensorubalansen. Fasen fra puls til puls i hver TDM-tidsluke moduleres ved en forskjellig, lineær rate slik at pulsen i tidsluken m vil ha en optisk frekvens som er forskjøvet med m??, hvor ?? er hjelpebærebølgefrekvensen. Fordi multippelrefleksjoner ikke må svekkes helt, kan oppfinnelsens metode forbedre signal-støy forholdet for interferometriske sensorer slik som in-line Fabry-Perot sensorer.
NO20052678A 2004-06-04 2005-06-03 Flerpuls heterodyn mellombærebølgeavspørring av interferometriske sensorer NO338819B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/862,123 US7480056B2 (en) 2004-06-04 2004-06-04 Multi-pulse heterodyne sub-carrier interrogation of interferometric sensors

Publications (3)

Publication Number Publication Date
NO20052678D0 NO20052678D0 (no) 2005-06-03
NO20052678L true NO20052678L (no) 2005-12-05
NO338819B1 NO338819B1 (no) 2016-10-24

Family

ID=34839050

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052678A NO338819B1 (no) 2004-06-04 2005-06-03 Flerpuls heterodyn mellombærebølgeavspørring av interferometriske sensorer

Country Status (4)

Country Link
US (1) US7480056B2 (no)
CA (1) CA2509186C (no)
GB (1) GB2414794B (no)
NO (1) NO338819B1 (no)

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Also Published As

Publication number Publication date
CA2509186C (en) 2010-04-27
NO338819B1 (no) 2016-10-24
US7480056B2 (en) 2009-01-20
GB0511247D0 (en) 2005-07-06
NO20052678D0 (no) 2005-06-03
US20050271395A1 (en) 2005-12-08
GB2414794B (en) 2009-06-10
CA2509186A1 (en) 2005-12-04
GB2414794A (en) 2005-12-07

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