JPS5745409A - Azimuth indicator using digital display - Google Patents

Azimuth indicator using digital display

Info

Publication number
JPS5745409A
JPS5745409A JP12198980A JP12198980A JPS5745409A JP S5745409 A JPS5745409 A JP S5745409A JP 12198980 A JP12198980 A JP 12198980A JP 12198980 A JP12198980 A JP 12198980A JP S5745409 A JPS5745409 A JP S5745409A
Authority
JP
Japan
Prior art keywords
azimuth
circuit
inputted
output voltage
digital display
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.)
Pending
Application number
JP12198980A
Other languages
Japanese (ja)
Inventor
Akihiro Fujimura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP12198980A priority Critical patent/JPS5745409A/en
Publication of JPS5745409A publication Critical patent/JPS5745409A/en
Pending 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
    • G01C17/28—Electromagnetic compasses

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE:To permit easy devision of azimus by using the outputs of two magnetosensitive elements changing directions 90 deg.. CONSTITUTION:The output voltage values of the magnetosensitive elements 8, 10 of an azimuth indicator are converted to digital signals by respective A/D converters 12, 13, and the ratio thereof is determined by a divider 14 and is inputted to an azimuth decision matrix circuit 15. When the output voltage of the element 10 is positive, it passes through a rectifier 16 and is increased by an amplifier 17 and is inputted to the circuit 15. The logical circuits in the circuit 15 operated and only one piece out of terminal groups 3 is conducted with electricity so that the azimuth is displayed by a display device not shown.
JP12198980A 1980-09-01 1980-09-01 Azimuth indicator using digital display Pending JPS5745409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12198980A JPS5745409A (en) 1980-09-01 1980-09-01 Azimuth indicator using digital display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12198980A JPS5745409A (en) 1980-09-01 1980-09-01 Azimuth indicator using digital display

Publications (1)

Publication Number Publication Date
JPS5745409A true JPS5745409A (en) 1982-03-15

Family

ID=14824803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12198980A Pending JPS5745409A (en) 1980-09-01 1980-09-01 Azimuth indicator using digital display

Country Status (1)

Country Link
JP (1) JPS5745409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60148918U (en) * 1984-03-15 1985-10-03 東北金属工業株式会社 magnetic orientation device
JPS615405U (en) * 1984-06-15 1986-01-13 東北金属工業株式会社 Split display type magnetic orientation device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123358A (en) * 1973-03-30 1974-11-26
JPS52145261A (en) * 1976-05-28 1977-12-03 Hideji Hasebe Electronic wristwatch with direction indicator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123358A (en) * 1973-03-30 1974-11-26
JPS52145261A (en) * 1976-05-28 1977-12-03 Hideji Hasebe Electronic wristwatch with direction indicator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60148918U (en) * 1984-03-15 1985-10-03 東北金属工業株式会社 magnetic orientation device
JPS615405U (en) * 1984-06-15 1986-01-13 東北金属工業株式会社 Split display type magnetic orientation device

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