METHOD OF GYROCOMPASSING AND METHOD OF HYDRODYNAMIC GYROSCOPE'S ZERO SIGNAL DRIFT COMPENSATION

摘要

FIELD: gyro engineering.;SUBSTANCE: methods can be used for realization of gyrocompass for low and high-dynamic moving objects. Zero signal drift of hydrodynamic gyro is determined, drift compensation signal is formed and constant component of the signal is removed from signal of hydrodynamic gyro. Hydrodynamic gyro is then subject to two-axis horizontal stabilization. One axis of sensitivity of gyro is put into coincidence with vertical line, and the other one - with direction being perpendicular to meridian. Gyro is turned around vertical line and axis of kinetic moment and direction to the north are put into coincidence. When deviating from the north direction, increment of turning moment is formed and coincidence of axis of self-rotation with direction to the north is corrected in this way. Two-axis horizontal stabilization is performed by means of liquid pendulum switch or hydrodynamic gyro with axis of self-rotation oriented in vertical and axial shift in center of mass. Route angle is counted relatively kinetic moment. Angles of pitch and bank are counted relatively horizontally stabilized platform.;EFFECT: increased threshold of sensitivity; simplified design.;11 cl, 2 dwg