FI45599B - - Google Patents

Info

Publication number
FI45599B
FI45599B FI3322/67A FI332267A FI45599B FI 45599 B FI45599 B FI 45599B FI 3322/67 A FI3322/67 A FI 3322/67A FI 332267 A FI332267 A FI 332267A FI 45599 B FI45599 B FI 45599B
Authority
FI
Finland
Application number
FI3322/67A
Other languages
Finnish (fi)
Other versions
FI45599C (fi
Inventor
J Catherin
Original Assignee
Comp Generale Electricite
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
Priority claimed from FR109148A external-priority patent/FR92569E/fr
Application filed by Comp Generale Electricite filed Critical Comp Generale Electricite
Publication of FI45599B publication Critical patent/FI45599B/fi
Application granted granted Critical
Publication of FI45599C publication Critical patent/FI45599C/fi

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
    • 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

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)
FI673322A 1966-12-15 1967-12-13 Laite suunnan määrittämistä varten, erityisesti maapallon akseliin näh den FI45599C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR87563A FR1513419A (fr) 1966-12-15 1966-12-15 Procédé de détermination de la direction de l'axe des pôles terrestres
FR109148A FR92569E (fr) 1967-06-05 1967-06-05 Procédé de détermination de la direction de l'axe des pôles terrestres

Publications (2)

Publication Number Publication Date
FI45599B true FI45599B (fr) 1972-04-04
FI45599C FI45599C (fi) 1972-07-10

Family

ID=26174366

Family Applications (1)

Application Number Title Priority Date Filing Date
FI673322A FI45599C (fi) 1966-12-15 1967-12-13 Laite suunnan määrittämistä varten, erityisesti maapallon akseliin näh den

Country Status (11)

Country Link
US (1) US3579846A (fr)
BE (1) BE707833A (fr)
CH (1) CH488168A (fr)
DE (1) DE1623407A1 (fr)
FI (1) FI45599C (fr)
FR (1) FR1513419A (fr)
GB (1) GB1208449A (fr)
LU (1) LU55082A1 (fr)
NL (1) NL6717006A (fr)
NO (1) NO126245B (fr)
SE (1) SE335237B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1589658A (fr) * 1968-05-07 1970-04-06
DE3522026A1 (de) * 1985-06-20 1987-01-02 Teldix Gmbh Verfahren zur signalauswertung eines den sagnac-effekt nutzenden lichtleitfaserrotationssensors
US4973158A (en) * 1987-11-04 1990-11-27 Richard Marsh Rotating laser beam reference plane instrument
US5400514A (en) * 1994-02-22 1995-03-28 Economy Laser, Inc. Laser instrument for tracing reference lines and other geometric figures

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981113A (en) * 1958-11-19 1961-04-25 Litton Systems Inc Precision directional reference
US3395270A (en) * 1962-06-28 1968-07-30 Jack B. Speller Relativistic inertial reference device
US3316768A (en) * 1963-10-29 1967-05-02 Thiokol Chemical Corp Magnetic angular velocity indicating system

Also Published As

Publication number Publication date
LU55082A1 (fr) 1969-08-08
FR1513419A (fr) 1968-02-16
SE335237B (fr) 1971-05-17
DE1623407A1 (de) 1971-03-18
CH488168A (fr) 1970-03-31
BE707833A (fr) 1968-06-11
NO126245B (fr) 1973-01-08
NL6717006A (fr) 1968-06-17
FI45599C (fi) 1972-07-10
US3579846A (en) 1971-05-25
GB1208449A (en) 1970-10-14

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