Semi-automatic self-contained magnetic azimuth detector...

Details Semi-automatic self-contained magnetic azimuth detector... Semi-automatic self-contained magnetic azimuth detector...

G - Physics

01

C

79/4

G01C 17/38 (2006.01) G01C 19/34 (2006.01)

Patent

CA 1096662

ABSTRACT OF THE DISCLOSURE Apparatus for calibrating the magnetic azimuth detector of a gyromagnetic compass system utilizes the system gyro to provide a plurality of heading references to which the corres- ponding heading outputs of the magnetic azimuth detector are compared to provide cardinal and inter-cardinal error data from which one cycle and two cycle compensation coefficients are derived. The gyro heading references are compensated for gyro drift in accordance with the proportionate drift occurring with respect to the total gyro drift occurring during the calibration proce- dure in accordance with coincident initial and final heading refer- ence points. The calibration is effected by orienting the aircraft in which the gyromagnetic compass system is installed at the plurali- ty of headings to provide the gyro reference and magnetic azimuth detector data.

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