JPS57116211A - Measuring device for direction - Google Patents

Measuring device for direction

Info

Publication number
JPS57116211A
JPS57116211A JP243081A JP243081A JPS57116211A JP S57116211 A JPS57116211 A JP S57116211A JP 243081 A JP243081 A JP 243081A JP 243081 A JP243081 A JP 243081A JP S57116211 A JPS57116211 A JP S57116211A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
magnetic field
vehicle
magnetic sensor
magnetic
signals
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
JP243081A
Other versions
JPS6244207B2 (en )
Inventor
Hisatsugu Ito
Kosaku Uota
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

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/38Testing, calibrating, or compensating of compasses

Abstract

PURPOSE:To automatically conduct compensation of a magnetic field of error caused by a vehicle by finding a signal compensating the effect caused by the magnetic field of the vehicle itself from a signal obtained from a plurality of states of rotation of a magnetic sensor. CONSTITUTION:Output signals 10U and 10V of the magnetic sensor 1 fitted to the mobile are given to an operation circuit 3 through amplifiers 20 and 21, and the signals to compensate the effect which the magnetic field generated by the magnetization of the vehicle itself gives to the horizontal magnetic field component of the earth are determined from the signals obtained in a plurality of states of rotation of the magnetic sensor 1 and are given to coils 11 and 12 for generating a compensating magnetic field of the magnetic sensor 1, through the intermediary of a conversion circuit 4. The direction of advance of a running body is determined easily from the outputs of output terminals 200 and 210. By this constitution, the compensation of the magnetic field of error caused by the vehicle is conducted automatically.
JP243081A 1981-01-09 1981-01-09 Expired JPS6244207B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP243081A JPS6244207B2 (en) 1981-01-09 1981-01-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP243081A JPS6244207B2 (en) 1981-01-09 1981-01-09

Publications (2)

Publication Number Publication Date
JPS57116211A true true JPS57116211A (en) 1982-07-20
JPS6244207B2 JPS6244207B2 (en) 1987-09-18

Family

ID=11529039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP243081A Expired JPS6244207B2 (en) 1981-01-09 1981-01-09

Country Status (1)

Country Link
JP (1) JPS6244207B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127807A (en) * 1981-02-02 1982-08-09 Toyota Motor Corp Method and device for correcting output for azimuth detector
JPS5824810A (en) * 1981-08-05 1983-02-14 Nippon Soken Inc Bearing detecting device
US4546551A (en) * 1983-03-24 1985-10-15 Prince Corporation Electrical control system
US4677381A (en) * 1984-10-19 1987-06-30 Prince Corporation Flux-gate sensor electrical drive method and circuit
US5010653A (en) * 1988-02-29 1991-04-30 Digicourse, Inc. Apparatus and method for determining azimuth, pitch and roll
US5105548A (en) * 1988-02-29 1992-04-21 Digicourse, Inc. Apparatus and method for determining azimuth, pitch and roll
US6857194B2 (en) 1999-05-27 2005-02-22 Johnson Controls Technology Company Vehicle compass system with continuous automatic calibration

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50116192A (en) * 1974-02-26 1975-09-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50116192A (en) * 1974-02-26 1975-09-11

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127807A (en) * 1981-02-02 1982-08-09 Toyota Motor Corp Method and device for correcting output for azimuth detector
JPS6230570B2 (en) * 1981-02-02 1987-07-03 Toyota Motor Co Ltd
JPS5824810A (en) * 1981-08-05 1983-02-14 Nippon Soken Inc Bearing detecting device
JPH0319927B2 (en) * 1981-08-05 1991-03-18 Nippon Jidosha Buhin Sogo Kenkyusho Kk
US4546551A (en) * 1983-03-24 1985-10-15 Prince Corporation Electrical control system
US4677381A (en) * 1984-10-19 1987-06-30 Prince Corporation Flux-gate sensor electrical drive method and circuit
US5010653A (en) * 1988-02-29 1991-04-30 Digicourse, Inc. Apparatus and method for determining azimuth, pitch and roll
US5105548A (en) * 1988-02-29 1992-04-21 Digicourse, Inc. Apparatus and method for determining azimuth, pitch and roll
US6857194B2 (en) 1999-05-27 2005-02-22 Johnson Controls Technology Company Vehicle compass system with continuous automatic calibration

Also Published As

Publication number Publication date Type
JPS6244207B2 (en) 1987-09-18 grant

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