JPS56154610A - Magnetic compass - Google Patents

Magnetic compass

Info

Publication number
JPS56154610A
JPS56154610A JP5788180A JP5788180A JPS56154610A JP S56154610 A JPS56154610 A JP S56154610A JP 5788180 A JP5788180 A JP 5788180A JP 5788180 A JP5788180 A JP 5788180A JP S56154610 A JPS56154610 A JP S56154610A
Authority
JP
Japan
Prior art keywords
magnetic paths
saturable magnetic
alternating current
saturable
horizone
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.)
Granted
Application number
JP5788180A
Other languages
Japanese (ja)
Other versions
JPS6216362B2 (en
Inventor
Kenzo Mori
Takeshi Yasuda
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.)
Taiyo Musen Co Ltd
Original Assignee
Taiyo Musen Co Ltd
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 Taiyo Musen Co Ltd filed Critical Taiyo Musen Co Ltd
Priority to JP5788180A priority Critical patent/JPS56154610A/en
Publication of JPS56154610A publication Critical patent/JPS56154610A/en
Publication of JPS6216362B2 publication Critical patent/JPS6216362B2/ja
Granted 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
    • G01C17/30—Earth-inductor compasses

Abstract

PURPOSE:To eliminate a mechanical moving part and to simplify and miniaturize a structure, by a method wherein an exciting coil and an output coil are mounted at a saturable magnetic paths which are positioned so that they meet at right angles with each other in the plane of the horizone. CONSTITUTION:Two saturable magnetic paths 4, 4, which meet at right angles to each other in the plane of the horizone, and coils 3, which have a phase difference of 45 deg. to each other and is excited by means of an alternating current having an amplitude which sufficiently saturates the saturable magnetic paths 4, 4, are provided. An output coil 5, which is common to the two saturable magnetic paths 4, 4, is wound, and an alternating current output, which has 2 times the number of frequencies as many as those of an alternating current energized to a phase angle corresponding to an angle between an earth magnetic field and the direction of the saturable magnetic paths 4, 4, is generated. The direction of the earth magnetic field is detected through the detection of said phase angle.
JP5788180A 1980-05-02 1980-05-02 Magnetic compass Granted JPS56154610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5788180A JPS56154610A (en) 1980-05-02 1980-05-02 Magnetic compass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5788180A JPS56154610A (en) 1980-05-02 1980-05-02 Magnetic compass

Publications (2)

Publication Number Publication Date
JPS56154610A true JPS56154610A (en) 1981-11-30
JPS6216362B2 JPS6216362B2 (en) 1987-04-13

Family

ID=13068323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5788180A Granted JPS56154610A (en) 1980-05-02 1980-05-02 Magnetic compass

Country Status (1)

Country Link
JP (1) JPS56154610A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0135933A2 (en) * 1983-09-29 1985-04-03 Siemens Aktiengesellschaft Magnetic probe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049185U (en) * 1990-05-15 1992-01-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0135933A2 (en) * 1983-09-29 1985-04-03 Siemens Aktiengesellschaft Magnetic probe

Also Published As

Publication number Publication date
JPS6216362B2 (en) 1987-04-13

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