CA1154851A - Acoustically dithered ring laser gyro - Google Patents

Acoustically dithered ring laser gyro

Info

Publication number
CA1154851A
CA1154851A CA000370991A CA370991A CA1154851A CA 1154851 A CA1154851 A CA 1154851A CA 000370991 A CA000370991 A CA 000370991A CA 370991 A CA370991 A CA 370991A CA 1154851 A CA1154851 A CA 1154851A
Authority
CA
Canada
Prior art keywords
passageway
laser
ring laser
gyro
medium
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.)
Expired
Application number
CA000370991A
Other languages
English (en)
French (fr)
Inventor
Virgil E. Sanders
Dana Z. Anderson
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 Guidance and Electronics Co Inc
Original Assignee
Litton Systems 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 Litton Systems Inc filed Critical Litton Systems Inc
Application granted granted Critical
Publication of CA1154851A publication Critical patent/CA1154851A/en
Expired legal-status Critical Current

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)
  • Plasma & Fusion (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Lasers (AREA)
CA000370991A 1980-03-24 1981-02-16 Acoustically dithered ring laser gyro Expired CA1154851A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13306880A 1980-03-24 1980-03-24
US133,068 1980-03-24

Publications (1)

Publication Number Publication Date
CA1154851A true CA1154851A (en) 1983-10-04

Family

ID=22456863

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000370991A Expired CA1154851A (en) 1980-03-24 1981-02-16 Acoustically dithered ring laser gyro

Country Status (7)

Country Link
JP (1) JPS584476B2 (it)
CA (1) CA1154851A (it)
DE (2) DE3108624A1 (it)
FR (1) FR2478810B1 (it)
GB (1) GB2072936B (it)
IL (1) IL62178A (it)
IT (1) IT1170828B (it)

Families Citing this family (6)

* 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
US4698823A (en) * 1984-09-12 1987-10-06 Litton Systems Inc. System for reducing the sensitivity of a ring laser gyro to changes in a magnetic field
DE19828319C2 (de) * 1998-06-25 2000-08-31 Daimler Chrysler Ag Verfahren zum Betrieb eines diodengepumpten Festkörper-Ringlaserkreisels und Festkörper-Ringlaserkreisel
FR2854947B1 (fr) * 2003-05-16 2005-07-01 Thales Sa Gyrolaser a etat solide stabilise par des dispositifs acousto-optiques
JP4857806B2 (ja) * 2006-02-21 2012-01-18 シンフォニアテクノロジー株式会社 ギアノイズ測定装置
FR2905005B1 (fr) 2006-08-18 2008-09-26 Thales Sa Gyrolaser a etat solide avec milieu a gain active mecaniquement.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041638A5 (it) * 1969-05-09 1971-01-29 Comp Generale Electricite
CA1085031A (en) * 1976-11-08 1980-09-02 Litton Systems, Inc. Laser gyro with phased dithered mirrors
US4115004A (en) * 1976-11-15 1978-09-19 Litton Systems, Inc. Counterbalanced oscillating ring laser gyro
FR2430598A1 (fr) * 1978-07-03 1980-02-01 Litton Systems Inc Gyroscope a laser en anneau

Also Published As

Publication number Publication date
GB2072936B (en) 1983-09-14
IT8148068A0 (it) 1981-03-20
JPS56150884A (en) 1981-11-21
FR2478810B1 (fr) 1985-07-05
IT1170828B (it) 1987-06-03
JPS584476B2 (ja) 1983-01-26
DE3108624A1 (de) 1982-01-14
FR2478810A1 (fr) 1981-09-25
GB2072936A (en) 1981-10-07
DE8106441U1 (de) 1984-11-08
IL62178A (en) 1986-04-29

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Legal Events

Date Code Title Description
MKEX Expiry