| 摘要 |
manufacture of gyrocompasses and course-indicating analytical devices. SUBSTANCE: plane of gyroscope sensitive axes and proper rotation axes are fixed preliminarily to axes connected with object. Signs of change of voltage from reference resistances of gyroscope are sligned with direction of azimuthal turn of its housing around proper rotation axis. Then, coefficients of gyroscope drift model, position latitude of object, angles of inclination of plane of gyroscope sensitive axes in pitching and rolling are determined. Then, self- compensation of gyroscope drift is performed depend on acceleration and is proportional to acceleration along axis of proper rotation which is proportional to second degree of acceleration along gyroscope axes due to joint action of accelerations by gyroscope sensitive axes; to this end, sensitive axis of first channel of gyroscope is matched with longitudinal axis of object and voltages from reference resistances of its two channels are measured in said position. Then, gyroscope is turned around proper rotation axis through 180 deg. relative to first position and voltages from reference resistances of gyroscope are measured in said second position, after which difference between measured voltages in two channels in these positions is found. Magnitude of true heading angle is calculated by analytical expression compensating algorithmically remaining part of gyroscope drift. EFFECT: enhanced accuracy of gyrocompassing. 2 dwg
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