NO20060635L - Fremgangsmate for a beregne et fasesignal i en fiberoptisk sensormarise med en fasegenerert baerebolge - Google Patents

Fremgangsmate for a beregne et fasesignal i en fiberoptisk sensormarise med en fasegenerert baerebolge

Info

Publication number
NO20060635L
NO20060635L NO20060635A NO20060635A NO20060635L NO 20060635 L NO20060635 L NO 20060635L NO 20060635 A NO20060635 A NO 20060635A NO 20060635 A NO20060635 A NO 20060635A NO 20060635 L NO20060635 L NO 20060635L
Authority
NO
Norway
Prior art keywords
phase
marise
calculating
fiber optic
generated carrier
Prior art date
Application number
NO20060635A
Other languages
English (en)
Inventor
David B Hall
Original Assignee
Northrop Grumman Corp
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 Northrop Grumman Corp filed Critical Northrop Grumman Corp
Publication of NO20060635L publication Critical patent/NO20060635L/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
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/08—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

En sensormatrise anvender en parameter for å indusere en tidsvarierende fasevinkel F på et optisk signal som innbefatter en fasegenerert bærebølge. Fasevinkelen F er beregnet gjennom å anvende bare fire samples, hvor alle de fire samplene er basert på det optiske signalet.
NO20060635A 2003-07-09 2006-02-09 Fremgangsmate for a beregne et fasesignal i en fiberoptisk sensormarise med en fasegenerert baerebolge NO20060635L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/615,730 US7012245B2 (en) 2003-07-09 2003-07-09 Calculation of sensor array induced phase angle
PCT/US2004/019466 WO2005010466A1 (en) 2003-07-09 2004-06-18 Method for calculation of a phase signal in a fiber optic sensor array with a phase generated carrier

Publications (1)

Publication Number Publication Date
NO20060635L true NO20060635L (no) 2006-04-07

Family

ID=33564627

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20060635A NO20060635L (no) 2003-07-09 2006-02-09 Fremgangsmate for a beregne et fasesignal i en fiberoptisk sensormarise med en fasegenerert baerebolge

Country Status (7)

Country Link
US (1) US7012245B2 (no)
EP (1) EP1642092B1 (no)
JP (1) JP5053633B2 (no)
KR (1) KR101064298B1 (no)
CA (1) CA2534205A1 (no)
NO (1) NO20060635L (no)
WO (1) WO2005010466A1 (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7336365B2 (en) * 2005-02-11 2008-02-26 Optoplan As Method and apparatus for suppression of crosstalk and noise in time-division multiplexed interferometric sensor systems
JP4844325B2 (ja) * 2006-09-28 2011-12-28 沖電気工業株式会社 光ファイバセンサシステム
US20110194120A1 (en) * 2009-05-21 2011-08-11 Monash University Method and device for phase measurement
CN111412936B (zh) * 2020-03-10 2021-08-06 天津大学 一种全数字正交相移脉冲cotdr传感装置和方法
CN114323092B (zh) * 2021-12-28 2022-08-16 中国人民解放军国防科技大学 一种计算与消除内调制pgc信号检测中伴生调幅的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5903350A (en) * 1997-02-03 1999-05-11 Optiphase, Inc. Demodulator and method useful for multiplexed optical sensors
US6134281A (en) * 1998-02-10 2000-10-17 Litton Systems, Inc. Method and apparatus for calibration of a signal processing system utilizing digital down converters
US6154308A (en) * 1998-07-30 2000-11-28 Litton Systems, Inc. Two step discrete phase shift demodulation method for fiber optic sensor arrays
US6122057A (en) * 1999-07-30 2000-09-19 Litton Systems, Inc. Four step discrete phase shift demodulation method for fiber optic sensor arrays
US20060122057A1 (en) * 2004-12-03 2006-06-08 Ming-Theng Wang Preparation of nanometered gold catalyzer

Also Published As

Publication number Publication date
JP2007527518A (ja) 2007-09-27
EP1642092A1 (en) 2006-04-05
KR101064298B1 (ko) 2011-09-14
US7012245B2 (en) 2006-03-14
US20050008278A1 (en) 2005-01-13
CA2534205A1 (en) 2005-02-03
WO2005010466A1 (en) 2005-02-03
JP5053633B2 (ja) 2012-10-17
EP1642092B1 (en) 2013-01-16
KR20070017090A (ko) 2007-02-08

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application