WO1992000502A3 - Demodulation de source de signaux de reference - Google Patents

Demodulation de source de signaux de reference Download PDF

Info

Publication number
WO1992000502A3
WO1992000502A3 PCT/US1991/004194 US9104194W WO9200502A3 WO 1992000502 A3 WO1992000502 A3 WO 1992000502A3 US 9104194 W US9104194 W US 9104194W WO 9200502 A3 WO9200502 A3 WO 9200502A3
Authority
WO
WIPO (PCT)
Prior art keywords
reference signal
receives
photodetector
phase
signal source
Prior art date
Application number
PCT/US1991/004194
Other languages
English (en)
Other versions
WO1992000502A2 (fr
Inventor
James Blake
Preston Dane
Rudolf Dankwort
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Priority to CA002085122A priority Critical patent/CA2085122C/fr
Priority to EP91915555A priority patent/EP0535164B1/fr
Priority to DE69102644T priority patent/DE69102644T2/de
Publication of WO1992000502A2 publication Critical patent/WO1992000502A2/fr
Publication of WO1992000502A3 publication Critical patent/WO1992000502A3/fr

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
    • G01C19/721—Details

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)
  • Optical Communication System (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

Système de recherche documentaire destiné à extraire des informations d'une paire d'ondes électromagnétiques cohérentes représentées par des différences de phase entre ces dernières, chacune étant incidente sur un photodétecteur, et comportant un démodulateur recevant le signal de sortie du photodétecteur et recevant également un signal de référence. Le signal de référence est obtenu par l'emploi d'un détecteur de déphasage recevant le signal du photodétecteur afin de déterminer certains déphasages se produisant dans ce dernier, et transmettant ces informations à une alimentation en signaux de référence afin d'ajuster la phase de son signal de sortie qui ensuite sert de signal de référence au démodulateur.
PCT/US1991/004194 1990-06-18 1991-06-13 Demodulation de source de signaux de reference WO1992000502A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002085122A CA2085122C (fr) 1990-06-18 1991-06-13 Source de signaux de reference de demodulation
EP91915555A EP0535164B1 (fr) 1990-06-18 1991-06-13 Demodulation de source de signaux de reference
DE69102644T DE69102644T2 (de) 1990-06-18 1991-06-13 Demodulationsreferenzsignalquelle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US539,634 1990-06-18
US07/539,634 US5148236A (en) 1990-06-18 1990-06-18 Demodulation reference signal source

Publications (2)

Publication Number Publication Date
WO1992000502A2 WO1992000502A2 (fr) 1992-01-09
WO1992000502A3 true WO1992000502A3 (fr) 1992-02-20

Family

ID=24152027

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/004194 WO1992000502A2 (fr) 1990-06-18 1991-06-13 Demodulation de source de signaux de reference

Country Status (6)

Country Link
US (1) US5148236A (fr)
EP (1) EP0535164B1 (fr)
JP (1) JP2808188B2 (fr)
CA (1) CA2085122C (fr)
DE (1) DE69102644T2 (fr)
WO (1) WO1992000502A2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04270914A (ja) * 1991-02-27 1992-09-28 Japan Aviation Electron Ind Ltd 同期検波装置
FR2679029B1 (fr) * 1991-07-11 1993-11-12 Photonetics Dispositif de mesure a fibre optique, gyrometre, centrale de navigation et de stabilisation.
US5289258A (en) * 1992-01-15 1994-02-22 Honeywell Inc. Fiber optic gyroscope modulation error reduction
US5703292A (en) * 1994-03-28 1997-12-30 The Charles Stark Draper Laboratory, Inc. Sensor having an off-frequency drive scheme and a sense bias generator utilizing tuned circuits
US5481914A (en) * 1994-03-28 1996-01-09 The Charles Stark Draper Laboratory, Inc. Electronics for coriolis force and other sensors
US6891622B2 (en) * 1999-02-11 2005-05-10 Kvh Industries, Inc. Current sensor
DE60102906D1 (de) 2000-02-28 2004-05-27 Kvh Ind Inc Faraday-effekt-stromsonde mit verbesserter schwingungsreaktion
US6707558B2 (en) * 2000-08-02 2004-03-16 Kvh Industries, Inc. Decreasing the effects of linear birefringence in a fiber-optic sensor by use of Berry's topological phase
US6763153B2 (en) * 2002-04-17 2004-07-13 Kvh Industries, Inc. Apparatus and method for electronic RIN reduction in fiber-optic sensors utilizing filter with group delay
JP5904694B2 (ja) * 2009-12-10 2016-04-20 株式会社東芝 サニャック干渉型光電流センサ
CN109211274B (zh) * 2018-09-30 2020-07-14 北京控制工程研究所 一种光纤陀螺检测电路自主验证方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160450A2 (fr) * 1984-04-25 1985-11-06 The Board Of Trustees Of The Leland Stanford Junior University Interféromètre à fibre optique avec lecture de phase
US4765739A (en) * 1985-11-06 1988-08-23 Kabushiki Kaisha Toshiba Fiber optical rotation sensor utilizing the Sagnac phase difference

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728192A (en) * 1984-02-17 1988-03-01 Stanford University Gated fiber optic rotation sensor with extended dynamic range
US4883358A (en) * 1987-09-02 1989-11-28 Japan Aviation Electronics Industry Limited Fiber optic gyro stabilized by harmonic components of detected signal
US5018859A (en) * 1989-01-26 1991-05-28 Honeywell Inc. Fiber optic gyroscope balanced plural serrodyne modulators phase difference control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160450A2 (fr) * 1984-04-25 1985-11-06 The Board Of Trustees Of The Leland Stanford Junior University Interféromètre à fibre optique avec lecture de phase
US4765739A (en) * 1985-11-06 1988-08-23 Kabushiki Kaisha Toshiba Fiber optical rotation sensor utilizing the Sagnac phase difference

Also Published As

Publication number Publication date
CA2085122C (fr) 2001-01-16
EP0535164A1 (fr) 1993-04-07
US5148236A (en) 1992-09-15
EP0535164B1 (fr) 1994-06-22
WO1992000502A2 (fr) 1992-01-09
JPH05506508A (ja) 1993-09-22
DE69102644T2 (de) 1994-11-24
DE69102644D1 (en) 1994-07-28
JP2808188B2 (ja) 1998-10-08
CA2085122A1 (fr) 1991-12-19

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