FR1372430A - Magnetic compass device - Google Patents

Magnetic compass device

Info

Publication number
FR1372430A
FR1372430A FR913036A FR913036A FR1372430A FR 1372430 A FR1372430 A FR 1372430A FR 913036 A FR913036 A FR 913036A FR 913036 A FR913036 A FR 913036A FR 1372430 A FR1372430 A FR 1372430A
Authority
FR
France
Prior art keywords
magnetic compass
compass device
magnetic
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
FR913036A
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.)
Thales SA
Original Assignee
Dassault Electronique SA
Electronique Marcal Dassault 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 Dassault Electronique SA, Electronique Marcal Dassault SA filed Critical Dassault Electronique SA
Priority to FR913036A priority Critical patent/FR1372430A/en
Application granted granted Critical
Publication of FR1372430A publication Critical patent/FR1372430A/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
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/20—Observing the compass card or needle
    • G01C17/26—Observing the compass card or needle using electric pick-offs for transmission to final indicator, e.g. photocell

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR913036A 1962-10-22 1962-10-22 Magnetic compass device Expired FR1372430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR913036A FR1372430A (en) 1962-10-22 1962-10-22 Magnetic compass device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR913036A FR1372430A (en) 1962-10-22 1962-10-22 Magnetic compass device

Publications (1)

Publication Number Publication Date
FR1372430A true FR1372430A (en) 1964-09-18

Family

ID=8789228

Family Applications (1)

Application Number Title Priority Date Filing Date
FR913036A Expired FR1372430A (en) 1962-10-22 1962-10-22 Magnetic compass device

Country Status (1)

Country Link
FR (1) FR1372430A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786571A (en) * 1972-08-30 1974-01-22 L Kelman Audio compass
US4597349A (en) * 1983-06-16 1986-07-01 Dolfi James W Automatic pilot for sailboat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786571A (en) * 1972-08-30 1974-01-22 L Kelman Audio compass
US4597349A (en) * 1983-06-16 1986-07-01 Dolfi James W Automatic pilot for sailboat

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