FR989769A - Improvements to gyro-magnetic compasses - Google Patents

Improvements to gyro-magnetic compasses

Info

Publication number
FR989769A
FR989769A FR989769DA FR989769A FR 989769 A FR989769 A FR 989769A FR 989769D A FR989769D A FR 989769DA FR 989769 A FR989769 A FR 989769A
Authority
FR
France
Prior art keywords
gyro
magnetic compasses
compasses
magnetic
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
Other languages
French (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.)
Societe Francaise dEquipements pour la Navigation Aerienne SFENA SA
Original Assignee
Societe Francaise dEquipements pour la Navigation Aerienne SFENA SA
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 Societe Francaise dEquipements pour la Navigation Aerienne SFENA SA filed Critical Societe Francaise dEquipements pour la Navigation Aerienne SFENA SA
Application granted granted Critical
Publication of FR989769A publication Critical patent/FR989769A/en
Expired 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
    • G01C19/02—Rotary gyroscopes
    • G01C19/34—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes
    • G01C19/36—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes with north-seeking action by magnetic means, e.g. gyromagnetic compasses

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR989769D 1949-04-28 1949-04-28 Improvements to gyro-magnetic compasses Expired FR989769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR989769T 1949-04-28

Publications (1)

Publication Number Publication Date
FR989769A true FR989769A (en) 1951-09-13

Family

ID=9540468

Family Applications (1)

Application Number Title Priority Date Filing Date
FR989769D Expired FR989769A (en) 1949-04-28 1949-04-28 Improvements to gyro-magnetic compasses

Country Status (1)

Country Link
FR (1) FR989769A (en)

Similar Documents

Publication Publication Date Title
FR1027426A (en) Improvements to recorder-translators
FR1027801A (en) Improvements to turbo-reactors
FR995731A (en) Improvements to servo-mechanisms
FR996795A (en) Improvements to datograph watches
FR986200A (en) Improvements to chambermaids
FR1021377A (en) Improvements to writing instruments
FR995758A (en) Compass refinements
FR989769A (en) Improvements to gyro-magnetic compasses
FR980823A (en) Gyromagnetic compass
FR1001877A (en) Improvements to clocks
FR970703A (en) Compensation of the quadrantal deviation of magnetic compasses
FR1021877A (en) Improvements to repeater compasses
FR988303A (en) Convertible drawing compass
FR989037A (en) Improvements to cranes
FR1018375A (en) Improvements relating to dicarboxyphenylsilanes
FR973072A (en) Improvements to gyroscopes
FR1023023A (en) Compass
FR1011973A (en) Navigation compass
FR931068A (en) Improvements to magnetic compasses
FR989768A (en) Improvements to directional gyroscopes
FR953242A (en) Advanced compass
FR1006125A (en) Improvements made to dowsing pendulums
FR1011766A (en) Compass
SU82510A1 (en) Well Sampling Instrument
FR1007730A (en) Improvement in gyroscopic compasses