CA2059025A1 - Interferometre de sagnac a fibre optique a modulation de phase numerique pour mesurer les vitesses de rotation - Google Patents

Interferometre de sagnac a fibre optique a modulation de phase numerique pour mesurer les vitesses de rotation

Info

Publication number
CA2059025A1
CA2059025A1 CA2059025A CA2059025A CA2059025A1 CA 2059025 A1 CA2059025 A1 CA 2059025A1 CA 2059025 A CA2059025 A CA 2059025A CA 2059025 A CA2059025 A CA 2059025A CA 2059025 A1 CA2059025 A1 CA 2059025A1
Authority
CA
Canada
Prior art keywords
fibre
rate
rotation
measuring
demodulation signal
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.)
Granted
Application number
CA2059025A
Other languages
English (en)
Other versions
CA2059025C (fr
Inventor
Gunter Spahlinger
Hans-J. Buschelberger
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.)
Northrop Grumman Litef GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2059025A1 publication Critical patent/CA2059025A1/fr
Application granted granted Critical
Publication of CA2059025C publication Critical patent/CA2059025C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
CA002059025A 1991-02-11 1992-01-08 Interferometre de sagnac a fibre optique a modulation de phase numerique pour mesurer les vitesses de rotation Expired - Lifetime CA2059025C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP91101872.9 1991-02-11
EP91101872A EP0498902B1 (fr) 1991-02-11 1991-02-11 Interféromètre à fibre optique du type sagnac avec modulation digitale de phase pour la mesure de vitesse de rotation

Publications (2)

Publication Number Publication Date
CA2059025A1 true CA2059025A1 (fr) 1992-08-12
CA2059025C CA2059025C (fr) 2001-01-02

Family

ID=8206396

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002059025A Expired - Lifetime CA2059025C (fr) 1991-02-11 1992-01-08 Interferometre de sagnac a fibre optique a modulation de phase numerique pour mesurer les vitesses de rotation

Country Status (5)

Country Link
US (1) US5214488A (fr)
EP (1) EP0498902B1 (fr)
JP (1) JPH0749964B2 (fr)
CA (1) CA2059025C (fr)
DE (1) DE59103693D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106767937A (zh) * 2016-11-29 2017-05-31 武汉理工光科股份有限公司 调谐式光纤光栅波长解调仪的实时修正方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5400142A (en) * 1994-05-03 1995-03-21 Alliedsignal Inc. Fiber optic angular rate sensor including digital phase modulation
US5530545A (en) * 1994-07-29 1996-06-25 Litton Systems, Inc. Method for reducing random walk in fiber optic gyroscopes
DE19629260C1 (de) * 1996-07-19 1998-02-26 Litef Gmbh Elektrooptischer Phasenmodulator mit richtungsunabhängiger Impulsantwort, Anordnung von elektrooptischen Phasenmodulatoren und Verwendung eines elektrooptischen Phasenmodulators
US5850286A (en) * 1997-05-12 1998-12-15 Litton Systems, Inc. Fiber optic gyro with optical intensity spike suppression
RU2124185C1 (ru) * 1997-05-13 1998-12-27 Михаил Афанасьевич Новиков Оптический гироскоп с пассивным кольцевым резонатором
US5883716A (en) * 1997-07-15 1999-03-16 Litton Systems, Inc. Rate control loop for fiber optic gyroscope
US6002481A (en) * 1998-04-08 1999-12-14 Honeywell, Inc. Fiber optic gyro with noise dither circuit for enhancing A/D conversion resolution
JP3607862B2 (ja) * 2000-09-29 2005-01-05 株式会社日立製作所 燃料電池
DK1561768T3 (da) * 2002-10-08 2010-02-01 Toyo Boseki Polyarylenæterforbindelse indeholdende sulfonsyregrupper, sammensætning indeholdende den samme og fremgangsmåde til fremstilling af disse
DE102007005108A1 (de) 2007-02-01 2008-08-07 BSH Bosch und Siemens Hausgeräte GmbH Zugmittelantrieb für ein Haushaltsgerät
CN101246009B (zh) * 2008-02-29 2010-08-18 北京航空航天大学 基于四态马尔可夫链的数字闭环光纤陀螺随机调制方法
DE102015004039A1 (de) 2015-03-27 2016-09-29 Northrop Grumman Litef Gmbh Mittelwertfrei gesteuerter Phasenmodulator für faseroptische Kreisel und faseroptischer Kreisel
EP3387382A1 (fr) 2015-12-10 2018-10-17 Wojskowa Akademia Techniczna im. Jaroslawa Dabrowskiego Procédé de mesure et appareil de mesure du rapport d'amplitude de deux premières harmoniques du signal obtenu à partir du système de sagnac
DE102020213286A1 (de) * 2020-10-21 2022-04-21 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Bestimmung einer Phasenlage eines Drehratensignals oder eines Quadratursignals, Verfahren zur Anpassung einer Demodulationsphase und Drehratensensor
CN114545018B (zh) * 2022-02-22 2024-01-30 中国工程物理研究院总体工程研究所 一种光纤破片测速装置及测速方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8805622D0 (en) * 1988-03-09 1988-08-24 British Aerospace Double demodulation in fibre-optic gyroscope
EP0441998B1 (fr) * 1990-02-12 1993-06-02 LITEF GmbH Interféromètre de Sagnac à fibre optique avec annulation numérique de déphasage pour la mesure de la vitesse de rotation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106767937A (zh) * 2016-11-29 2017-05-31 武汉理工光科股份有限公司 调谐式光纤光栅波长解调仪的实时修正方法
CN106767937B (zh) * 2016-11-29 2019-06-28 武汉理工光科股份有限公司 调谐式光纤光栅波长解调仪的实时修正方法

Also Published As

Publication number Publication date
EP0498902A1 (fr) 1992-08-19
CA2059025C (fr) 2001-01-02
US5214488A (en) 1993-05-25
EP0498902B1 (fr) 1994-11-30
DE59103693D1 (de) 1995-01-12
JPH0688834A (ja) 1994-03-29
JPH0749964B2 (ja) 1995-05-31

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Legal Events

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EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202