ES2064936T3 - Dispositivo de medicion de fibra optica, girometro, central de navegacion y de estabilizacion, captador de corriente. - Google Patents

Dispositivo de medicion de fibra optica, girometro, central de navegacion y de estabilizacion, captador de corriente.

Info

Publication number
ES2064936T3
ES2064936T3 ES91401003T ES91401003T ES2064936T3 ES 2064936 T3 ES2064936 T3 ES 2064936T3 ES 91401003 T ES91401003 T ES 91401003T ES 91401003 T ES91401003 T ES 91401003T ES 2064936 T3 ES2064936 T3 ES 2064936T3
Authority
ES
Spain
Prior art keywords
phi
amplitude
signal
tau
modulator
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES91401003T
Other languages
English (en)
Inventor
Herve Lefevre
Philippe Martin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Photonetics SA
Original Assignee
Photonetics SA
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 Photonetics SA filed Critical Photonetics SA
Application granted granted Critical
Publication of ES2064936T3 publication Critical patent/ES2064936T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
    • G01R15/245—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect
    • G01R15/246—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect based on the Faraday, i.e. linear magneto-optic, effect
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/58—Turn-sensitive devices without moving masses
    • G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
    • G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
    • G01C19/726—Phase nulling gyrometers, i.e. compensating the Sagnac phase shift in a closed loop system

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

LA INVENCION SE REFIERE A UN DISPOSITIVO DE MEDICION DE FIBRA OPTICA UTILIZABLE POR EJEMPLO COMO GIROMETRO. EN ESTE DISPOSITIVO LA VARIACION DE UN PARAMETRO MEDIDO GENERA UNA DIFERENCIA DE FASE ENTRE DOS ONDAS. COMPRENDE OMPRENDEN UN SISTEMA DE TRATAMIENTO (9) QUE EMITE UNA SEÑAL FUNCION DEL PARAMETRO MEDIDO Y MEDIOS ELECTRONICOS (12) QUE CONTROLAN EL MODULADOR DE FASE (4). LA SEÑAL DE CONTROL DEL MODULADOR ES LA SUPERPOSICION DE UNA PRIMERA SEÑAL, SESGADA, PERIODICA EN DIENTES FI SUB B (T) DE PERIODO 2 (TAN) Y DE AMPLITUD FI SUB BM Y DE UNA SEGUNDA SEÑAL, DE CONTRAREACCION, EN ESCALONES FI SUB M (T) SINCRONIZADO CON FI SUB B (T), DE LOS QUE CADA ESCALON TIENE UNA DURACION IGUAL A TAU O A UNA DE SUS SUBCONJUNTOS, Y UNA AMPLITUD FI SUB S, FUNCION DEL VALOR DEL PARAMETRO MEDIDO Y QUE SE PONE A CERO CUANDO SU AMPLITUD SOBREPASA UN VALOR PREDETERMINADO FI SUB MM, FI SUB BM Y FI SUB MM CONTROLADO EN 2 FI SUB BM + FI SUB MM = 2NPI DONDE N ES UN NUMERO ENTERO, LA RESPUESTA AL DESFASE SINGULAR INTRODUCIDO DURANTE LA CAIDA DE LA SEÑAL DE CONTRARREACCION ES PARA ESTE CONTROL Y POR CONSIGUIENTE PARA MANTENER CONSTANTE LA GANANCIA DE LA CADENA DE MODULACION.
ES91401003T 1990-04-17 1991-04-16 Dispositivo de medicion de fibra optica, girometro, central de navegacion y de estabilizacion, captador de corriente. Expired - Lifetime ES2064936T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9004908A FR2660996B1 (fr) 1990-04-17 1990-04-17 Dispositif de mesure a fibre optique, gyrometre, centrale de navigation et de stabilisation, capteur de courant.

Publications (1)

Publication Number Publication Date
ES2064936T3 true ES2064936T3 (es) 1995-02-01

Family

ID=9395825

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91401003T Expired - Lifetime ES2064936T3 (es) 1990-04-17 1991-04-16 Dispositivo de medicion de fibra optica, girometro, central de navegacion y de estabilizacion, captador de corriente.

Country Status (8)

Country Link
US (1) US5181078A (es)
EP (1) EP0455530B1 (es)
JP (1) JP3058361B2 (es)
AT (1) ATE114184T1 (es)
CA (1) CA2040484C (es)
DE (1) DE69105162T2 (es)
ES (1) ES2064936T3 (es)
FR (1) FR2660996B1 (es)

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FR2679029B1 (fr) * 1991-07-11 1993-11-12 Photonetics Dispositif de mesure a fibre optique, gyrometre, centrale de navigation et de stabilisation.
FR2685471B1 (fr) * 1991-12-23 1995-05-12 Applic Gles Electr Meca Gyrometre a fibre optique a traitement numerique du signal.
US5278631A (en) * 1992-04-24 1994-01-11 Allied Signal Inc. Closed loop fiber optic gyroscope with signal processing arrangement for improved performance
US5309220A (en) * 1992-04-24 1994-05-03 Alliedsignal Inc. Closed loop fiber optic gyroscope with reduced sensitivity to electronic drift
JP3030185B2 (ja) * 1993-03-11 2000-04-10 三洋電機株式会社 デジタルサーボ装置
US5644397A (en) * 1994-10-07 1997-07-01 The Texas A&M University System Fiber optic interferometric circuit and magnetic field sensor
US5696858A (en) * 1996-08-01 1997-12-09 The Texas A&M University System Fiber Optics apparatus and method for accurate current sensing
US5987195A (en) * 1996-08-01 1999-11-16 The Texas A&M University System Fiber optics apparatus and method for accurate current sensing
FR2754893B1 (fr) * 1996-10-21 1999-01-08 Sfim Ind Gyroscope a fibre optique multimode
US6023331A (en) * 1997-06-19 2000-02-08 The Texas A&M University System Fiber optic interferometric sensor and method by adding controlled amounts of circular birefringence in the sensing fiber
US5978084A (en) * 1997-08-26 1999-11-02 The Texas A&M University System Open loop signal processing circuit and method for a fiber optic interferometric sensor
US5963323A (en) * 1998-02-06 1999-10-05 Litton Systems, Inc. Method for improving the performance of fiber-optic gyros by calculating the bias from using a broadband source
DE19808517A1 (de) * 1998-02-27 1999-09-16 Litef Gmbh Einrichtung zur Strommessung
RU2146807C1 (ru) * 1998-03-02 2000-03-20 Курбатов Александр Михайлович Способ компенсации разности фаз саньяка в кольцевом интерферометре волоконно-оптического гироскопа
US6118534A (en) * 1998-07-30 2000-09-12 B. F. Goodrich Company Sensor and method for measuring changes in environmental conditions
JP2002525856A (ja) 1998-09-11 2002-08-13 ニュー・フォーカス・インコーポレイテッド 波長可変レーザ
US6188811B1 (en) 1998-10-31 2001-02-13 The Texas A&M Universtiy System Fiber optic current sensor
RU2157962C2 (ru) * 1998-11-20 2000-10-20 Курбатов Александр Михайлович Способ вспомогательной фазовой модуляции кольцевого интерферометра волоконно-оптического гироскопа
ES2163347B1 (es) * 1998-11-27 2003-04-16 Electrotecnica Arteche Hermano Sensor de voltaje de firma optica codificado en frecuencia, para redes de corriente alterna.
US6307632B1 (en) 1999-03-24 2001-10-23 The Texas A&M University System Magnetic field integrated fiber optic sensor with improved sensitivity
US6879619B1 (en) 1999-07-27 2005-04-12 Intel Corporation Method and apparatus for filtering an optical beam
US6847661B2 (en) * 1999-09-20 2005-01-25 Iolon, Inc. Tunable laser with microactuator
US6856632B1 (en) * 1999-09-20 2005-02-15 Iolon, Inc. Widely tunable laser
US7209498B1 (en) 2000-05-04 2007-04-24 Intel Corporation Method and apparatus for tuning a laser
JP4234885B2 (ja) * 2000-07-07 2009-03-04 日本航空電子工業株式会社 サニヤック干渉計型電流センサ
US7120176B2 (en) 2000-07-27 2006-10-10 Intel Corporation Wavelength reference apparatus and method
RU2194245C2 (ru) * 2000-11-14 2002-12-10 Открытое акционерное общество Пермская научно-производственная приборостроительная компания Способ фазовой модуляции лучей кольцевого интерферометра волоконно-оптического гироскопа
US6658031B2 (en) 2001-07-06 2003-12-02 Intel Corporation Laser apparatus with active thermal tuning of external cavity
US6724797B2 (en) 2001-07-06 2004-04-20 Intel Corporation External cavity laser with selective thermal control
US6901088B2 (en) * 2001-07-06 2005-05-31 Intel Corporation External cavity laser apparatus with orthogonal tuning of laser wavelength and cavity optical pathlength
US6804278B2 (en) 2001-07-06 2004-10-12 Intel Corporation Evaluation and adjustment of laser losses according to voltage across gain medium
US6822979B2 (en) 2001-07-06 2004-11-23 Intel Corporation External cavity laser with continuous tuning of grid generator
RU2194246C1 (ru) * 2001-08-07 2002-12-10 Открытое акционерное общество Пермская научно-производственная приборостроительная компания Способ обработки сигнала кольцевого интерферометра волоконно-оптического гироскопа
RU2194247C1 (ru) * 2001-08-20 2002-12-10 Открытое акционерное общество Пермская научно-производственная приборостроительная компания Способ фазовой модуляции в кольцевом интерферометре волоконно-оптического гироскопа
US7230959B2 (en) 2002-02-22 2007-06-12 Intel Corporation Tunable laser with magnetically coupled filter
US7505139B2 (en) * 2007-03-06 2009-03-17 Bergh Ralph A Signal processing for a Sagnac interferometer
US8497994B2 (en) 2008-02-14 2013-07-30 Ralph A. Bergh Interferometer employing a multi-waveguide optical loop path and fiber optic rotation rate sensor employing same
US8098380B2 (en) * 2009-07-21 2012-01-17 Honeywell International Inc. Resonator fiber optic gyroscope (RFOG) with reduced bias error from high order spatial modes
US9518827B2 (en) 2010-05-07 2016-12-13 Ralph A. Bergh Method and apparatus for multiplexing multiple Sagnac interferometers with single input for source light
EP2593749B1 (en) * 2010-07-14 2015-10-07 Ralph A. Bergh Occasional calibration phase-difference modulation for sagnac interferometer
FR2987111B1 (fr) * 2012-02-21 2014-03-07 Ixblue Dispositif de mesure a fibre optique, gyrometre, centrale de navigation et de stabilisation inertielle
CN110045308B (zh) * 2018-01-16 2021-11-16 中国电力科学研究院有限公司 全光纤直流电流测量装置阶跃响应测试系统及方法
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FR3120453B1 (fr) * 2021-03-04 2023-04-21 Ixblue Générateur d’un signal lumineux modulé anti-effet Kerr, dispositif de mesure interférométrique comportant un tel générateur et méthode de modulation d’un signal lumineux

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US4299490A (en) * 1978-12-07 1981-11-10 Mcdonnell Douglas Corporation Phase nulling optical gyro
FR2555739B1 (fr) * 1980-11-07 1986-04-04 Thomson Csf Dispositif de mesure d'un dephasage non reciproque engendre dans un interferometre en anneau
FR2566133B1 (fr) * 1984-06-14 1986-08-29 Thomson Csf Dispositif de mesure d'un dephasage non reciproque engendre dans un interferometre en anneau
JPH0654236B2 (ja) * 1989-11-30 1994-07-20 日本航空電子工業株式会社 デジタルフェイズランプ方式光干渉角速度計
DE59000320D1 (de) * 1990-01-03 1992-10-29 Litef Gmbh Faseroptisches sagnac-interferometer mit digitaler phasenrampenrueckstellung zur drehratenmessung.
EP0441998B1 (de) * 1990-02-12 1993-06-02 LITEF GmbH Faseroptisches Sagnac-Interferometer mit digitaler Phasenrampenrückstellung zur Drehratenmessung

Also Published As

Publication number Publication date
DE69105162D1 (de) 1994-12-22
FR2660996B1 (fr) 1992-08-07
JP3058361B2 (ja) 2000-07-04
JPH04230805A (ja) 1992-08-19
DE69105162T2 (de) 1995-05-24
CA2040484C (en) 2001-11-20
EP0455530A1 (fr) 1991-11-06
CA2040484A1 (en) 1991-10-18
US5181078A (en) 1993-01-19
EP0455530B1 (fr) 1994-11-17
ATE114184T1 (de) 1994-12-15
FR2660996A1 (fr) 1991-10-18

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