IT8221862A0 - Giroscopio laser ad anello con specchi doppler. - Google Patents

Giroscopio laser ad anello con specchi doppler.

Info

Publication number
IT8221862A0
IT8221862A0 IT8221862A IT2186282A IT8221862A0 IT 8221862 A0 IT8221862 A0 IT 8221862A0 IT 8221862 A IT8221862 A IT 8221862A IT 2186282 A IT2186282 A IT 2186282A IT 8221862 A0 IT8221862 A0 IT 8221862A0
Authority
IT
Italy
Prior art keywords
doppler
mirrors
ring laser
laser gyroscope
gyroscope
Prior art date
Application number
IT8221862A
Other languages
English (en)
Other versions
IT8221862A1 (it
IT1152969B (it
Inventor
Bo Hans Gunnar Ljung
John C Stiles
Original Assignee
Little Falls New Jersey U S A
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 Little Falls New Jersey U S A filed Critical Little Falls New Jersey U S A
Publication of IT8221862A0 publication Critical patent/IT8221862A0/it
Publication of IT8221862A1 publication Critical patent/IT8221862A1/it
Application granted granted Critical
Publication of IT1152969B publication Critical patent/IT1152969B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/083—Ring lasers
    • 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)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Plasma & Fusion (AREA)
  • Gyroscopes (AREA)
  • Lasers (AREA)
IT21862/82A 1981-06-15 1982-06-15 Giroscopio laser ad anello con specchi doppler IT1152969B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/274,044 US4410276A (en) 1981-06-15 1981-06-15 Ring laser gyroscope with doppler mirrors

Publications (3)

Publication Number Publication Date
IT8221862A0 true IT8221862A0 (it) 1982-06-15
IT8221862A1 IT8221862A1 (it) 1983-12-15
IT1152969B IT1152969B (it) 1987-01-14

Family

ID=23046536

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21862/82A IT1152969B (it) 1981-06-15 1982-06-15 Giroscopio laser ad anello con specchi doppler

Country Status (11)

Country Link
US (1) US4410276A (it)
JP (1) JPS57208187A (it)
AU (1) AU547717B2 (it)
CA (1) CA1170344A (it)
DE (1) DE3222444A1 (it)
FR (1) FR2507771B1 (it)
GB (1) GB2100499B (it)
IL (1) IL65330A0 (it)
IT (1) IT1152969B (it)
NO (1) NO821958L (it)
SE (1) SE456277B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4653919A (en) * 1982-02-08 1987-03-31 Sundstrand Optical Technologies, Inc. Laser gyro with dithered mirrors and current dither
US5412475A (en) * 1982-08-27 1995-05-02 Raytheon Company Diagonal pathlength control
DE3320345A1 (de) * 1983-06-04 1984-12-06 Litton Systems, Inc., Beverly Hills, Calif. Ringlaser-gyroskop
US4592656A (en) * 1983-07-05 1986-06-03 Honeywell, Inc. Ring laser angular rate sensor with modulated scattered waves
US5357338A (en) * 1983-07-11 1994-10-18 Litton Systems, Inc. Path length controller with offset bias for a ring laser gyro
US4686683A (en) * 1984-01-09 1987-08-11 Litton Systems, Inc. Laser angular rate sensor with dithered mirrors
CA1252551A (en) * 1984-01-09 1989-04-11 Litton Systems, Inc. Laser angular rate sensor with dithered mirrors
JPH0716052B2 (ja) * 1984-06-18 1995-02-22 日本航空電子工業株式会社 リングレ−ザ角速度計
JP2517696Y2 (ja) * 1985-06-05 1996-11-20 日本電気ホームエレクトロニクス株式会社 リングレ−ザジヤイロ
US4824253A (en) * 1987-04-08 1989-04-25 Litton Systems, Inc. Glass driver for laser mirror
US5137358A (en) * 1991-02-05 1992-08-11 Northrop Corporation Ring laser gyro having two magnetic mirrors
US5359413A (en) * 1992-01-13 1994-10-25 Kearfott Guidance And Navigation Corporation System for substantially eleminating lock-in in a ring laser gyroscope
US5420685A (en) * 1992-12-18 1995-05-30 Honeywell Inc. Electrostatic path length control transducer
US5416583A (en) * 1993-07-30 1995-05-16 Kearfott Guidance & Navigation Corporation Quantum well bias mirror for phase modulation in a ring laser gyroscope
US5469258A (en) * 1993-11-29 1995-11-21 Allied Signal Inc. Ring laser gyroscope with tilting mirrors
KR960010566B1 (ko) * 1993-12-30 1996-08-02 한국과학기술연구원 록-인 영역(Look-in Zone)의 폭을 제어할 수 있는 레이저 자이로
EP2761253B1 (en) * 2011-09-29 2015-09-09 SI-Ware Systems Mems based ring laser gyroscope with reduced lock-in
US9651379B2 (en) 2014-11-17 2017-05-16 Honeywell International Inc. Eliminating ring laser gyro backscatter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533014A (en) * 1968-06-04 1970-10-06 Massachusetts Inst Technology Gas ring laser using oscillating radiation scattering sources within the laser cavity
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
FR2414715A1 (fr) * 1978-01-13 1979-08-10 Sfena Procede d'attenua
US4281930A (en) * 1978-12-18 1981-08-04 Litton Systems, Inc. Laser gyro with phased dithered mirrors

Also Published As

Publication number Publication date
GB2100499A (en) 1982-12-22
AU547717B2 (en) 1985-10-31
FR2507771A1 (fr) 1982-12-17
AU8485282A (en) 1982-12-23
CA1170344A (en) 1984-07-03
US4410276A (en) 1983-10-18
SE456277B (sv) 1988-09-19
JPS57208187A (en) 1982-12-21
NO821958L (no) 1982-12-16
GB2100499B (en) 1985-09-11
IT8221862A1 (it) 1983-12-15
IL65330A0 (en) 1982-05-31
FR2507771B1 (fr) 1986-07-25
IT1152969B (it) 1987-01-14
SE8203682L (sv) 1982-12-16
DE3222444A1 (de) 1982-12-30

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