FR640901A - Device for the compensation of the additional deviation of the compass roses - Google Patents

Device for the compensation of the additional deviation of the compass roses

Info

Publication number
FR640901A
FR640901A FR640901DA FR640901A FR 640901 A FR640901 A FR 640901A FR 640901D A FR640901D A FR 640901DA FR 640901 A FR640901 A FR 640901A
Authority
FR
France
Prior art keywords
compensation
additional deviation
compass roses
roses
compass
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)
Inventor
Eugene Vion
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 filed Critical
Application granted granted Critical
Publication of FR640901A publication Critical patent/FR640901A/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
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/38—Testing, calibrating, or compensating of compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR640901D 1927-02-28 1927-02-28 Device for the compensation of the additional deviation of the compass roses Expired FR640901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR640901T 1927-02-28

Publications (1)

Publication Number Publication Date
FR640901A true FR640901A (en) 1928-07-24

Family

ID=8997780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR640901D Expired FR640901A (en) 1927-02-28 1927-02-28 Device for the compensation of the additional deviation of the compass roses

Country Status (1)

Country Link
FR (1) FR640901A (en)

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