JPS57108708A - Azimuth detector - Google Patents

Azimuth detector

Info

Publication number
JPS57108708A
JPS57108708A JP18626880A JP18626880A JPS57108708A JP S57108708 A JPS57108708 A JP S57108708A JP 18626880 A JP18626880 A JP 18626880A JP 18626880 A JP18626880 A JP 18626880A JP S57108708 A JPS57108708 A JP S57108708A
Authority
JP
Japan
Prior art keywords
matter
azimuth
car
magnetic
compensating
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
JP18626880A
Other languages
Japanese (ja)
Inventor
Muneaki Matsumoto
Akira Kuno
Akishi Numata
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.)
Soken Inc
Original Assignee
Nippon Soken Inc
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 Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP18626880A priority Critical patent/JPS57108708A/en
Priority to DE19813150872 priority patent/DE3150872A1/en
Priority to US06/334,378 priority patent/US4523386A/en
Publication of JPS57108708A publication Critical patent/JPS57108708A/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)
  • Navigation (AREA)

Abstract

PURPOSE:To accurately detect the travelling azimuth of a travelling object without compensating the magnetic field by means of an external compensating magnet, by inserting a matter having high magnetic permeability between an azimuth detecting sensor and a magnetic matter having the residual magnetism. CONSTITUTION:A high permeability magnetic matter 3 such as an amorphous alloy, a permalloy, etc. is attached to a roof iron plate 4 of a car 2 and at the side of A in the car. An azimuth detecting sensor 1 is attached to the inside of the matter 3 and apart by a distance L. The signal of the sensor 1 is transmitted to a signal processing circuit 5 to detect the distance. As a result, the travelling azimuth of the car 2 is accurately detected without compensating the magnetic field by means of an external compensating magnet.
JP18626880A 1980-12-26 1980-12-26 Azimuth detector Pending JPS57108708A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP18626880A JPS57108708A (en) 1980-12-26 1980-12-26 Azimuth detector
DE19813150872 DE3150872A1 (en) 1980-12-26 1981-12-22 "COURSE DETERMINATION DEVICE"
US06/334,378 US4523386A (en) 1980-12-26 1981-12-24 Heading detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18626880A JPS57108708A (en) 1980-12-26 1980-12-26 Azimuth detector

Publications (1)

Publication Number Publication Date
JPS57108708A true JPS57108708A (en) 1982-07-06

Family

ID=16185308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18626880A Pending JPS57108708A (en) 1980-12-26 1980-12-26 Azimuth detector

Country Status (1)

Country Link
JP (1) JPS57108708A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173009U (en) * 1984-04-26 1985-11-16 東北金属工業株式会社 Mounting structure of automotive geomagnetic sensing element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173009U (en) * 1984-04-26 1985-11-16 東北金属工業株式会社 Mounting structure of automotive geomagnetic sensing element

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