JPS5766307A - Azimuth measuring device - Google Patents

Azimuth measuring device

Info

Publication number
JPS5766307A
JPS5766307A JP14149680A JP14149680A JPS5766307A JP S5766307 A JPS5766307 A JP S5766307A JP 14149680 A JP14149680 A JP 14149680A JP 14149680 A JP14149680 A JP 14149680A JP S5766307 A JPS5766307 A JP S5766307A
Authority
JP
Japan
Prior art keywords
signals
magnetism
effect
outputs
variable power
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
JP14149680A
Other languages
Japanese (ja)
Inventor
Hisatsugu Ito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14149680A priority Critical patent/JPS5766307A/en
Publication of JPS5766307A publication Critical patent/JPS5766307A/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
    • G01C17/38—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)
  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE:To make it possible to measure accurate azimuth by obtaining signals of two components corresponding to magnetism by a magnetism by a magnetic sensor, giving the signals to adders or subtractors together with the outputs of variable power sources, and removing the effect of erroneous magnetic fields. CONSTITUTION:DC signals Uu and Uv are obtained by amplifying two signals eu and ev which are generated by the magnetic sensor which is mounted on a moving body in response to the applied magnetism. Said signals are given to one input terminal of each of two adders. The outputs of the variable power source are applied to the other input terminals. Thus the effect of the erroneous magnetic field is removed. For example, since the so called erroneous magnetic fields which are generated by the moving body and the like is generally acted on the magnetic sensor 1 in addition to terrestrial magntism, said effect is applied on the generated signal eu and ev. Therefore, the outputs of the variable power source Vu and Vv are acted in the adder 30 and 31 after the signals pass through amplifiers 20 and 21 in order to remove said effect, and signals Eu and Ev which are related only to the terrestrial magnetism can be simply obtained.
JP14149680A 1980-10-09 1980-10-09 Azimuth measuring device Pending JPS5766307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14149680A JPS5766307A (en) 1980-10-09 1980-10-09 Azimuth measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14149680A JPS5766307A (en) 1980-10-09 1980-10-09 Azimuth measuring device

Publications (1)

Publication Number Publication Date
JPS5766307A true JPS5766307A (en) 1982-04-22

Family

ID=15293280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14149680A Pending JPS5766307A (en) 1980-10-09 1980-10-09 Azimuth measuring device

Country Status (1)

Country Link
JP (1) JPS5766307A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174881A (en) * 1983-03-24 1984-10-03 プリンス　コ−ポレイシヨン Electric control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59174881A (en) * 1983-03-24 1984-10-03 プリンス　コ−ポレイシヨン Electric control system
JPH055043B2 (en) * 1983-03-24 1993-01-21 Prince Corp

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