FR2426887A1 - Gyroscope a laser - Google Patents

Gyroscope a laser

Info

Publication number
FR2426887A1
FR2426887A1 FR7906502A FR7906502A FR2426887A1 FR 2426887 A1 FR2426887 A1 FR 2426887A1 FR 7906502 A FR7906502 A FR 7906502A FR 7906502 A FR7906502 A FR 7906502A FR 2426887 A1 FR2426887 A1 FR 2426887A1
Authority
FR
France
Prior art keywords
laser
modes
gyroscope
cavity
relates
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.)
Granted
Application number
FR7906502A
Other languages
English (en)
Other versions
FR2426887B1 (fr
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 FR2426887A1 publication Critical patent/FR2426887A1/fr
Application granted granted Critical
Publication of FR2426887B1 publication Critical patent/FR2426887B1/fr
Granted legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Lasers (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubricants (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

L'invention concerne les gyroscopes à laser. Elle se rapporte à un gyroscope à laser dans lequel des modes secondaires relativement peu intenses, légèrement supérieur au seuil de fonctionnement du laser annulaire du gyroscope, sont couplés à des modes primaires plus intenses, se propageant en sens inverses dans le laser annulaire si bien que le couplage provoque un effet d'oscillation qui réduit ou élimine le verrouillage entre les modes primaires. Dans un mode de réalisation, la longueur de la cavité est réglée afin que deux modes secondaires se déplaçant en sens inverses soient formés dans la cavité, alors que les deux modes primaires se trouvent très au-delà du seuil. Application aux gyroscopes à laser.
FR7906502A 1978-05-26 1979-03-14 Gyroscope a laser Granted FR2426887A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90991978A 1978-05-26 1978-05-26

Publications (2)

Publication Number Publication Date
FR2426887A1 true FR2426887A1 (fr) 1979-12-21
FR2426887B1 FR2426887B1 (fr) 1984-06-22

Family

ID=25428045

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906502A Granted FR2426887A1 (fr) 1978-05-26 1979-03-14 Gyroscope a laser

Country Status (18)

Country Link
JP (1) JPS596520B2 (fr)
AU (1) AU521186B2 (fr)
BE (1) BE874859A (fr)
BR (1) BR7901915A (fr)
CA (1) CA1125895A (fr)
CH (1) CH645718A5 (fr)
DE (1) DE2920429A1 (fr)
DK (1) DK215579A (fr)
ES (1) ES479075A1 (fr)
FR (1) FR2426887A1 (fr)
GB (1) GB2021851B (fr)
GR (1) GR66808B (fr)
IL (1) IL56658A (fr)
IT (1) IT1115066B (fr)
NL (1) NL181953C (fr)
NO (1) NO152272C (fr)
NZ (1) NZ189487A (fr)
SE (1) SE448320B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120839A (en) * 1982-05-19 1983-12-07 Raytheon Co Ring laser gyroscope
DE3412016C2 (de) * 1984-03-31 1986-12-11 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln Ringlaser
US4783169A (en) * 1985-08-09 1988-11-08 Litton Systems, Inc. Control of a ring laser gyro cavity according to a preselected model
CN103674003B (zh) * 2012-09-07 2016-06-01 中国航空工业第六一八研究所 一种电磁驱动式激光陀螺抖动机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697181A (en) * 1967-03-14 1972-10-10 Sperry Rand Corp Ring laser having amplitude and phase controlled crossed-beam anti-locking feedback
US3741657A (en) * 1971-03-03 1973-06-26 Raytheon Co Laser gyroscope
US3846025A (en) * 1973-04-02 1974-11-05 S Wilber Frequency sensitive laser rotary motion sensor
US4152071A (en) * 1976-08-02 1979-05-01 Honeywell Inc. Control apparatus
CA1085031A (fr) * 1976-11-08 1980-09-02 Litton Systems, Inc. Gyoscope au laser avec miroirs oscillant en phase

Also Published As

Publication number Publication date
GR66808B (fr) 1981-04-30
SE448320B (sv) 1987-02-09
ES479075A1 (es) 1979-06-01
IL56658A (en) 1981-07-31
NO152272B (no) 1985-05-20
CA1125895A (fr) 1982-06-15
IT7948410A0 (it) 1979-03-20
SE7902823L (sv) 1979-11-27
NO152272C (no) 1985-08-28
AU4398179A (en) 1979-11-29
BR7901915A (pt) 1979-12-04
CH645718A5 (de) 1984-10-15
JPS596520B2 (ja) 1984-02-13
BE874859A (fr) 1979-07-02
DE2920429A1 (de) 1979-11-29
IT1115066B (it) 1986-02-03
NL181953B (nl) 1987-07-01
FR2426887B1 (fr) 1984-06-22
AU521186B2 (en) 1982-03-18
DK215579A (da) 1979-11-27
JPS54155794A (en) 1979-12-08
GB2021851B (en) 1982-07-21
GB2021851A (en) 1979-12-05
NL181953C (nl) 1987-12-01
NZ189487A (en) 1982-12-07
NO791638L (no) 1979-11-27
NL7901581A (nl) 1979-11-28

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Legal Events

Date Code Title Description
ST Notification of lapse