Geometrical instruments – Indicator of direction of force traversing natural media – Magnetic field responsive
Patent
1986-10-09
1988-04-26
Martin, Jr., William D.
Geometrical instruments
Indicator of direction of force traversing natural media
Magnetic field responsive
324224, 374142, G01C 1730
Patent
active
047395605
ABSTRACT:
An azimuth calculation apparatus includes an azimuth sensor mounted on a moving body for detecting a direction of the moving body, the azimuth sensor having an excitation winding wound on an annular magnetic core and a pair of output windings wound on the core perpendicularly relative to one another to produce first and second output signals therefrom in response to energization of the excitation winding. The calculation apparatus is arranged to detect a temperature of the azimuth sensor and to determine a pair of correction values based on the detected temperature of the azimuth sensor so as to correct each value of the first and second output signals from the output windings to an optimal value for calculating the direction of the moving body in dependence upon the corrected output signals from the output windings.
REFERENCES:
patent: 4413424 (1983-11-01), Sasaki et al.
patent: 4416067 (1983-11-01), Scherer et al.
patent: 4480226 (1984-10-01), Kuno et al.
patent: 4622754 (1986-11-01), Chujo et al.
patent: 4646014 (1987-02-01), Eulenberg
Akutsu Kazushi
Ichikawa Hitoshi
Martin, Jr. William D.
Nippondenso Co. Ltd.
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