Electrical compass

Details Electrical compass Electrical compass

G - Physics

01

C

33/100

G01C 17/26 (2006.01) G01C 17/30 (2006.01)

Patent

CA 1184376

ELECTRICAL COMPASS ABSTRACT OF THE DISCLOSURE A magnetic field detecting system for use with a flux-gate sensor includes an oscillator, the output of which is applied to a digital bandpass filter and frequency divided and also applied to the sensor, and phase detectors such that the frequency and phase of the output signals from the flux-gate sensor have a predetermined relationship to the excitation signal. In one embodiment of the invention, the direction indicating output signals from the phase detectors are applied to a suitable interface circuit for a microprocessor which converts the signals to a digital format employed for application, to an alpha-type display for displaying the octal magnetic orientation of a vehicle.

421732

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