WO1998000682A3 - A three-axis fiber optic gyroscope - Google Patents

A three-axis fiber optic gyroscope Download PDF

Info

Publication number
WO1998000682A3
WO1998000682A3 PCT/US1997/011412 US9711412W WO9800682A3 WO 1998000682 A3 WO1998000682 A3 WO 1998000682A3 US 9711412 W US9711412 W US 9711412W WO 9800682 A3 WO9800682 A3 WO 9800682A3
Authority
WO
WIPO (PCT)
Prior art keywords
configuration
fiber optic
gyroscope
sensing
shared
Prior art date
Application number
PCT/US1997/011412
Other languages
French (fr)
Other versions
WO1998000682A2 (en
Inventor
Ren-Young Liu
Ralph A Bergh
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 EP97945179A priority Critical patent/EP0907877B1/en
Priority to JP50439298A priority patent/JP4117030B2/en
Priority to DE69725720T priority patent/DE69725720T2/en
Publication of WO1998000682A2 publication Critical patent/WO1998000682A2/en
Publication of WO1998000682A3 publication Critical patent/WO1998000682A3/en

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
    • G01C19/728—Assemblies for measuring along different axes, e.g. triads

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)

Abstract

A gyroscope having three fiber optic loops for sensing rates of rotation in three axes orthogonal to one another. The gyroscope has one or two detectors and one source that is shared among the three fiber optic sensing loop subsystems with a special multicoupler configuration. Also, portions of the rotation rate signal processing electronics, whether an open or closed loop configuration, are shared among the three sensing loops. The gyroscope may be a single mode optical fiber depolarized configuration or a polarization maintaining optical fiber configuration.
PCT/US1997/011412 1996-06-28 1997-06-26 A three-axis fiber optic gyroscope WO1998000682A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP97945179A EP0907877B1 (en) 1996-06-28 1997-06-26 A three-axis fiber optic gyroscope
JP50439298A JP4117030B2 (en) 1996-06-28 1997-06-26 3-axis fiber optic gyroscope
DE69725720T DE69725720T2 (en) 1996-06-28 1997-06-26 THREE-AXIS FIBER OPTICAL GYRO

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/672,249 1996-06-28
US08/672,249 US5854678A (en) 1996-06-28 1996-06-28 Three-axis fiber optic gyroscope having a single source and multi-coupler configuration

Publications (2)

Publication Number Publication Date
WO1998000682A2 WO1998000682A2 (en) 1998-01-08
WO1998000682A3 true WO1998000682A3 (en) 1998-02-26

Family

ID=24697774

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/011412 WO1998000682A2 (en) 1996-06-28 1997-06-26 A three-axis fiber optic gyroscope

Country Status (6)

Country Link
US (1) US5854678A (en)
EP (1) EP0907877B1 (en)
JP (1) JP4117030B2 (en)
CA (1) CA2258628A1 (en)
DE (1) DE69725720T2 (en)
WO (1) WO1998000682A2 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1219926B1 (en) 2000-11-28 2010-10-20 Politecnico di Bari Integrated optical angular velocity sensor
US6801319B2 (en) * 2002-01-03 2004-10-05 Honeywell International, Inc. Symmetrical depolarized fiber optic gyroscope
US7190462B2 (en) * 2003-03-27 2007-03-13 Japan Aviation Electronics Industry Limited Fiber optic gyroscope having optical integrated circuit, depolarizer and fiber optic coil
US7085441B1 (en) * 2005-03-04 2006-08-01 Northrop Grumman Corporation Fiber-optic gyroscope with depolarizer using integrated optic waveguide
CN100362320C (en) * 2005-04-08 2008-01-16 北京航空航天大学 Light small triaxial integral fibre-optical gyrometer
US8560059B2 (en) * 2007-03-09 2013-10-15 Covidien Lp System and methods for optical sensing and drug delivery using microneedles
US7713196B2 (en) 2007-03-09 2010-05-11 Nellcor Puritan Bennett Llc Method for evaluating skin hydration and fluid compartmentalization
US20080291459A1 (en) * 2007-05-22 2008-11-27 Litton Systems, Inc. Fiber optic gyroscope with integrated light source
WO2009103015A2 (en) 2008-02-14 2009-08-20 Bergh Ralph A An interferometer employing a multi-waveguide optical loop path and fiber optic rotation rate sensor employing same
CN101290227B (en) * 2008-06-17 2010-12-29 北京航空航天大学 Three axis optical fibre gyroscope inertia measurement unit integral structure
US7973938B2 (en) * 2008-09-24 2011-07-05 Honeywell International Inc. Bias-reduced fiber optic gyroscope with polarizing fibers
US8351046B2 (en) * 2008-09-29 2013-01-08 The Boeing Company Multiple nested interferometric fiber optic gyroscope system
CN101788297B (en) * 2010-03-26 2011-10-12 中北大学 Minisize embedded inertia measurement unit having anti-high overload performance
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
CN102305628B (en) * 2011-05-20 2013-06-12 浙江大学 Triaxial integrated all-optical-fiber inertial sensing system
FR2990751B1 (en) 2012-05-16 2015-07-17 Ixblue FIBER OPTIC INTERFEROMETRIC MEASUREMENT SYSTEM AND INERTIAL GUIDE OR NAVIGATION SYSTEM COMPRISING SUCH AN INTERFEROMETER MEASUREMENT SYSTEM
CN102937448B (en) * 2012-10-26 2015-04-15 北京航空航天大学 Method for removing impulse noises of fiber-optic gyroscope based on slope coefficient
US9568317B2 (en) * 2013-01-31 2017-02-14 Honeywell International Inc. Fiber optic gyroscope mixed signal application specific integrated circuit
US11047687B2 (en) 2017-01-13 2021-06-29 The Charles Stark Draper Laboratory, Inc. Fiber management assembly for multi-axis fiber optic gyroscope
CN110388910A (en) * 2018-04-19 2019-10-29 上海亨通光电科技有限公司 A kind of optical fibre gyro with light source self-checking function
CN110579204B (en) * 2019-08-20 2021-05-28 北京航空航天大学 Optical fiber coupler array for triaxial integrated optical fiber gyroscope
TWI765412B (en) 2020-11-13 2022-05-21 國立中山大學 Silicon photonic integrated circuit and fiber optic gyroscope apparatus
CN113932789B (en) * 2021-10-13 2023-03-07 宁波圣荣电子科技有限公司 Data transmission method and system for optical fiber gyroscope

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388499A1 (en) * 1989-03-23 1990-09-26 LITEF GmbH Rotation rate sensor device using Sagnac interferometers for three spatial directions
WO1990015967A1 (en) * 1989-06-21 1990-12-27 Teldix Gmbh Fibre laser gyrometer
US5189488A (en) * 1991-11-25 1993-02-23 Litton Systems, Inc. Fiber optical gyroscope utilizing orthogonal sequences

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445780A (en) * 1982-03-01 1984-05-01 The United States Of America As Represented By The Secretary Of The Navy Fiber optic rotation-sensing gyroscope with (3×2) coupler
US4479715A (en) * 1982-03-09 1984-10-30 Sheem Sang K Optical rotation-sensing interferometer with (3×3)-(2×2) directional coupler
US4653917A (en) * 1983-03-24 1987-03-31 The United States Of America As Represented By The Secretary Of The Navy Fiber optic gyroscope operating with unpolarized light source
JPH0715385B2 (en) * 1983-06-03 1995-02-22 住友電気工業株式会社 Fiber optic gyro
FR2605101B1 (en) * 1986-10-14 1988-12-09 Thomson Csf THREE-AXIS FIBER OPTIC RING INTERFEROMETER
US4828389A (en) * 1987-04-21 1989-05-09 Smiths Industries Integrated triad optical rate sensor apparatus
US4869592A (en) * 1988-01-27 1989-09-26 Bergh Ralph A Method and apparatus for obtaining a digital measure of absolute rotation
US4953935A (en) * 1989-03-27 1990-09-04 United Technologies Corporation Integrated optic star coupler
DE3912005A1 (en) * 1989-04-12 1990-10-18 Messerschmitt Boelkow Blohm METHOD FOR EVALUATING SIGNALS FOR A FIBER GYRO
DE3926312A1 (en) * 1989-08-09 1991-02-14 Messerschmitt Boelkow Blohm SAGNAC TYPE FIBER GYRO
DE3926313A1 (en) * 1989-08-09 1991-02-14 Messerschmitt Boelkow Blohm SAGNAC TYPE FIBER GYRO
US5157461A (en) * 1990-06-14 1992-10-20 Smiths Industries Aerospace & Defense Systems Inc. Interface configuration for rate sensor apparatus
US5146956A (en) * 1990-08-09 1992-09-15 Slocomb Industries, Inc. Programmable controlled winder
DE69107549T2 (en) * 1990-08-27 1995-06-22 Sumitomo Electric Industries Optical fiber gyroscope.
DE4037118C1 (en) * 1990-11-22 1992-04-30 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De
DE4108807C2 (en) * 1991-03-18 1994-09-01 Litef Gmbh Multi-axis fiber optic rotation rate sensor arrangement
US5184195A (en) * 1991-05-28 1993-02-02 Litton Systems, Inc. Triaxial fiber optic Sagnac interferometer with single source and detector
DE4120675A1 (en) * 1991-06-22 1992-12-24 Messerschmitt Boelkow Blohm SAGNAC TYPE OPTICAL FIBER GYRO
JPH087072B2 (en) * 1991-09-25 1996-01-29 日本航空電子工業株式会社 Fiber optic gyro
DE4134312A1 (en) * 1991-10-17 1993-04-22 Deutsche Aerospace FIBER OPTICAL GYPSY
US5293439A (en) * 1991-11-12 1994-03-08 Sumitomo Metal Mining Co., Ltd. Integrated optical circuit for fiber-optics gyroscopes
US5260768A (en) * 1991-11-25 1993-11-09 Litton Systems, Inc. Fiber optic gyro with low-birefringence and PM networks
US5491763A (en) * 1992-04-03 1996-02-13 Koninklijke Ptt Nederland N.V. Optical hybrid with 3×3 coupling device
DE4301479A1 (en) * 1993-01-21 1994-07-28 Deutsche Aerospace Method and device for correcting the measurement signals of a fiber gyroscope
US5486921A (en) * 1994-04-05 1996-01-23 Litton Systems, Inc. Optimum coupler configuration for fiber optic rate gyroscope using [3×] coupler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388499A1 (en) * 1989-03-23 1990-09-26 LITEF GmbH Rotation rate sensor device using Sagnac interferometers for three spatial directions
WO1990015967A1 (en) * 1989-06-21 1990-12-27 Teldix Gmbh Fibre laser gyrometer
US5189488A (en) * 1991-11-25 1993-02-23 Litton Systems, Inc. Fiber optical gyroscope utilizing orthogonal sequences

Also Published As

Publication number Publication date
EP0907877B1 (en) 2003-10-22
EP0907877A2 (en) 1999-04-14
US5854678A (en) 1998-12-29
JP2000513812A (en) 2000-10-17
WO1998000682A2 (en) 1998-01-08
DE69725720D1 (en) 2003-11-27
JP4117030B2 (en) 2008-07-09
DE69725720T2 (en) 2004-07-29
CA2258628A1 (en) 1998-01-08

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