GB2062950B - Ring lasers - Google Patents

Ring lasers

Info

Publication number
GB2062950B
GB2062950B GB8035399A GB8035399A GB2062950B GB 2062950 B GB2062950 B GB 2062950B GB 8035399 A GB8035399 A GB 8035399A GB 8035399 A GB8035399 A GB 8035399A GB 2062950 B GB2062950 B GB 2062950B
Authority
GB
United Kingdom
Prior art keywords
ring lasers
lasers
ring
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
GB8035399A
Other languages
English (en)
Other versions
GB2062950A (en
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
Publication of GB2062950A publication Critical patent/GB2062950A/en
Application granted granted Critical
Publication of GB2062950B publication Critical patent/GB2062950B/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
    • G01C19/661—Ring laser gyrometers details
    • G01C19/665—Ring laser gyrometers details control of the cavity

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)
GB8035399A 1979-11-05 1980-11-04 Ring lasers Expired GB2062950B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9101979A 1979-11-05 1979-11-05

Publications (2)

Publication Number Publication Date
GB2062950A GB2062950A (en) 1981-05-28
GB2062950B true GB2062950B (en) 1983-10-19

Family

ID=22225409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8035399A Expired GB2062950B (en) 1979-11-05 1980-11-04 Ring lasers

Country Status (9)

Country Link
JP (1) JPS5933994B2 (de)
CA (1) CA1168740A (de)
CH (1) CH652245A5 (de)
DE (1) DE3040202A1 (de)
FR (1) FR2469025A1 (de)
GB (1) GB2062950B (de)
IL (1) IL61156A (de)
IT (1) IT1146216B (de)
SE (1) SE448576B (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473297A (en) * 1981-11-12 1984-09-25 The Singer Company Ring laser gyroscope utilizing phase detector for minimizing beam lock-in
US4653919A (en) * 1982-02-08 1987-03-31 Sundstrand Optical Technologies, Inc. Laser gyro with dithered mirrors and current dither
DE3376687D1 (en) * 1982-03-01 1988-06-23 Honeywell Inc Angular rate sensor
US4526469A (en) * 1982-03-01 1985-07-02 Honeywell Inc. Discriminant apparatus for laser gyros
US4551021A (en) * 1982-03-01 1985-11-05 Honeywell Inc. Discriminant apparatus for laser gyros
US4824252A (en) * 1982-06-25 1989-04-25 Honeywell Inc. Laser gyro system
US4657392A (en) * 1982-08-05 1987-04-14 Honeywell Inc. Lock-in rate discriminate apparatus for ring laser angular rate sensors
US4616930A (en) * 1983-04-20 1986-10-14 Litton Systems, Inc. Optically biased twin ring laser gyroscope
JPS6016481A (ja) * 1983-07-08 1985-01-28 Japan Aviation Electronics Ind Ltd リングレ−ザジヤイロ
JPS6016480A (ja) * 1983-07-08 1985-01-28 Japan Aviation Electronics Ind Ltd レ−ザ角速度センサ
JPS6116587A (ja) * 1984-07-02 1986-01-24 Japan Aviation Electronics Ind Ltd 光角速度計
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
US4783169A (en) * 1985-08-09 1988-11-08 Litton Systems, Inc. Control of a ring laser gyro cavity according to a preselected model
US4795259A (en) * 1986-10-31 1989-01-03 Honeywell Inc. Path length control mechanization for a ring laser angular rate sensor
GB2301932B (en) * 1988-10-27 1997-10-08 Litton Systems Inc Apparatus and method for correcting ring laser gyroscope phase angle errors induced by lock-in
FR2645263B1 (fr) * 1989-03-30 1991-07-26 Salaberry Bernard De Capteur de position optique pour gyrometre a laser
DE4009919A1 (de) * 1989-04-03 1990-10-04 Teldix Gmbh Grundkoerper fuer einen laserkreisel
DE3918049A1 (de) * 1989-06-02 1990-12-13 Honeywell Regelsysteme Gmbh Ringlaserkreisel mit drehschwingeinrichtung
US5074664A (en) * 1991-01-11 1991-12-24 Litton Systems Inc. Computer generated cavity length control with automatic gain control for ring laser gyros
US8259302B2 (en) 2010-07-30 2012-09-04 Honeywell International Inc. Variable path length control modulation frequency

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1585018A (de) * 1968-05-06 1970-01-09
US4152071A (en) * 1976-08-02 1979-05-01 Honeywell Inc. Control apparatus
US4115004A (en) * 1976-11-15 1978-09-19 Litton Systems, Inc. Counterbalanced oscillating ring laser gyro

Also Published As

Publication number Publication date
IL61156A (en) 1983-07-31
SE448576B (sv) 1987-03-02
JPS5674978A (en) 1981-06-20
IT1146216B (it) 1986-11-12
FR2469025B1 (de) 1985-02-01
SE8007703L (sv) 1981-05-06
CA1168740A (en) 1984-06-05
FR2469025A1 (fr) 1981-05-08
DE3040202A1 (de) 1981-05-14
CH652245A5 (de) 1985-10-31
DE3040202C2 (de) 1992-03-26
IT8049966A0 (it) 1980-10-22
JPS5933994B2 (ja) 1984-08-20
GB2062950A (en) 1981-05-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19991104