SE8400266D0 - Lasergyro - Google Patents

Lasergyro

Info

Publication number
SE8400266D0
SE8400266D0 SE8400266A SE8400266A SE8400266D0 SE 8400266 D0 SE8400266 D0 SE 8400266D0 SE 8400266 A SE8400266 A SE 8400266A SE 8400266 A SE8400266 A SE 8400266A SE 8400266 D0 SE8400266 D0 SE 8400266D0
Authority
SE
Sweden
Prior art keywords
gyro
dither
primary
nonlinearities
current
Prior art date
Application number
SE8400266A
Other languages
English (en)
Other versions
SE8400266L (sv
Inventor
D C Stjern
F Daly
E Gardner
Original Assignee
Sundstrand Optical Tech
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 Sundstrand Optical Tech filed Critical Sundstrand Optical Tech
Publication of SE8400266D0 publication Critical patent/SE8400266D0/sv
Publication of SE8400266L publication Critical patent/SE8400266L/sv

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
    • G01C19/66—Ring laser gyrometers
    • G01C19/68—Lock-in prevention
    • G01C19/70—Lock-in prevention by mechanical means

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)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
SE8400266A 1983-01-31 1984-01-20 Lasergyro SE8400266L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/462,548 US4653919A (en) 1982-02-08 1983-01-31 Laser gyro with dithered mirrors and current dither

Publications (2)

Publication Number Publication Date
SE8400266D0 true SE8400266D0 (sv) 1984-01-20
SE8400266L SE8400266L (sv) 1984-08-01

Family

ID=23836837

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8400266A SE8400266L (sv) 1983-01-31 1984-01-20 Lasergyro

Country Status (11)

Country Link
US (1) US4653919A (sv)
JP (1) JPS59143386A (sv)
AU (1) AU546735B2 (sv)
BE (1) BE898703A (sv)
DE (1) DE3403308A1 (sv)
FR (1) FR2540242A1 (sv)
GB (4) GB2136630A (sv)
IT (1) IT1199054B (sv)
NL (1) NL8400291A (sv)
NO (1) NO840079L (sv)
SE (1) SE8400266L (sv)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347360A (en) * 1982-08-27 1994-09-13 Ratheon Company Ring laser gyro
CA1252551A (en) * 1984-01-09 1989-04-11 Litton Systems, Inc. Laser angular rate sensor with dithered mirrors
US4867567A (en) * 1987-08-21 1989-09-19 Litton Systems, Inc. Ring laser gyro frame design resistant to thermal gradient effects
US5012174A (en) * 1988-06-20 1991-04-30 Sperry Marine Inc. Method and apparatus for countering vibrations of a platform
US5854677A (en) * 1990-08-31 1998-12-29 Rockwell International Corporation RLG optical noise injector
US5323228A (en) * 1991-04-22 1994-06-21 Alliedsignal Inc. Cavity length controller for ring laser gyroscope applications
US5359413A (en) * 1992-01-13 1994-10-25 Kearfott Guidance And Navigation Corporation System for substantially eleminating lock-in in a ring laser gyroscope
US5450197A (en) * 1993-08-31 1995-09-12 Honeywell Inc. Device and method for reducing angular random walk in a ring laser gyroscope
US5469258A (en) * 1993-11-29 1995-11-21 Allied Signal Inc. Ring laser gyroscope with tilting mirrors
US5686777A (en) * 1995-09-21 1997-11-11 New Jersey Institute Of Technology High accuracy piezoelectric positioning device
US6683692B2 (en) 2001-06-21 2004-01-27 Honeywell International Dither system for motion sensors
US8259302B2 (en) 2010-07-30 2012-09-04 Honeywell International Inc. Variable path length control modulation frequency
JP2023115546A (ja) * 2022-02-08 2023-08-21 日本航空電子工業株式会社 リングレーザージャイロスコープ
CN115290124B (zh) * 2022-10-10 2022-12-13 天津集智航宇科技有限公司 一种激光陀螺无转动出光真空老练装置及方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373650A (en) * 1965-04-02 1968-03-19 Honeywell Inc Laser angular rate sensor
US3752586A (en) * 1969-08-04 1973-08-14 North American Rockwell Minimizing frequency locking in ring laser gyroscopes
US3612690A (en) * 1970-07-08 1971-10-12 Robert C Staats Laser gyro dither circuit
US4152071A (en) * 1976-08-02 1979-05-01 Honeywell Inc. Control apparatus
CA1085031A (en) * 1976-11-08 1980-09-02 Litton Systems, Inc. Laser gyro with phased dithered mirrors
JPS543492A (en) * 1977-06-09 1979-01-11 Nec Corp Laser gyro
US4281930A (en) * 1978-12-18 1981-08-04 Litton Systems, Inc. Laser gyro with phased dithered mirrors
IL61156A (en) * 1979-11-05 1983-07-31 Litton Systems Inc Dithered ring laser with minimized mirror backscattering
JPS5738194A (en) * 1980-08-20 1982-03-02 Oji Paper Co Ltd Master plate for lithography
US4410274A (en) * 1981-06-08 1983-10-18 The Singer Company Ring laser gyroscope with doppler mirrors and offset actuators
US4410276A (en) * 1981-06-15 1983-10-18 The Singer Company Ring laser gyroscope with doppler mirrors
US4473297A (en) * 1981-11-12 1984-09-25 The Singer Company Ring laser gyroscope utilizing phase detector for minimizing beam lock-in
US4526469A (en) * 1982-03-01 1985-07-02 Honeywell Inc. Discriminant apparatus for laser gyros

Also Published As

Publication number Publication date
SE8400266L (sv) 1984-08-01
FR2540242A1 (fr) 1984-08-03
GB2143366A (en) 1985-02-06
AU2392184A (en) 1985-06-06
GB8414148D0 (en) 1984-07-11
IT1199054B (it) 1988-12-30
GB8401247D0 (en) 1984-02-22
JPH0462193B2 (sv) 1992-10-05
DE3403308A1 (de) 1984-09-06
JPS59143386A (ja) 1984-08-16
IT8447609A0 (it) 1984-01-27
GB8414147D0 (en) 1984-07-11
GB2136630A (en) 1984-09-19
GB2143368A (en) 1985-02-06
GB2143367A (en) 1985-02-06
AU546735B2 (en) 1985-09-19
BE898703A (fr) 1984-07-17
GB8414149D0 (en) 1984-07-11
NO840079L (no) 1984-08-01
NL8400291A (nl) 1984-08-16
US4653919A (en) 1987-03-31

Similar Documents

Publication Publication Date Title
SE8400266L (sv) Lasergyro
US4152071A (en) Control apparatus
DE68915566D1 (de) Frequenzumwandlung von optischer Strahlung.
US5442442A (en) Ring laser gyroscope scale factor error control apparatus and method control apparatus and method
SE8206389D0 (sv) Ringlasergyro med fasdetektor
IL88759A0 (en) Liquid sealed vane oscillators
GB1536077A (en) Ring laser gyroscope
SE8203682L (sv) Forfarande och anordning for att forhindra lasning i ett ringlasergyro
US4525843A (en) Ring laser with wavefront conjugating beams
Heer History of the laser gyro
GB1135996A (en) Ring laser
US4807998A (en) Ring laser having amplitude and phase controlled externally injected back scatter
CA1252551A (en) Laser angular rate sensor with dithered mirrors
ES479075A1 (es) Un giroscopo de laser.
GR3005456T3 (sv)
Volosov et al. Intracavity generation of the second optical harmonic
Bretenaker et al. Reverse Sagnac effect in ring lasers
SE8403264L (sv) Ringlasergyro
ZOZULIA et al. Mutual reversal of incoherent light beams in a photorefractive crystal(Vzaimoobrashchenie nekogerentnykh svetovykh puchkov v fotorefraktivnom kristalle)
Balsamo An active ring laser gyroscope without lock-in-Concept, and design
JPS6475910A (en) Optical fiber gyroscope
Zhuang et al. More itineracy in a photorefractive ring oscillator
HALFORD Investigation of the pulse-to-pulse phase coherence of carbon dioxide lasers[Final Report, 15 Jan. 1979- 14 Jan. 1980]
Avetisian Monochromatization of charged-particle beams by counterpropagating laser pulses
KRUGLIK The quantum-statistical theory of ring lasers(Russian book)

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8400266-6

Effective date: 19870801