RU95107169A - Method of determination of natural drifts of three-axes gyroscopic stabilizer - Google Patents

Abstract

FIELD: measurement technology. SUBSTANCE: invention is related to part of measurement technology which deals with problems of evaluation of gyroscopic devices and systems. Three-axes gyrostabilizer is set in advance by correction system to definite position relative to plane of horizon and meridian. Values of currents of correction of gyroscopes by three sensitive axes are measured and recorded in initial position. Alternating moments are formed by input axes of gyroscopes with the use of moment pickups. Amplitudes of first and second pulses of current have different values multiple of correction currents and polarity of first pulses of current is opposite to polarity of correction currents. Computations are carried out by formulas $$$; $$$, where H is kinetic moment of gyroscope: k is coefficient of transmission of moment pickup; $$$ are currents in moment pickup under action of first and second pulses of moment; $$$, are durations of first and second pulses of moment; $$$ is projection of angular speed on direction of input axis of gyroscope. EFFECT: reduced time of autonomous measurement of natural drifts of gyroscopic devices with preservation of accuracy. 1 cl, 2 dwg

Claims (1)

The invention relates to the field of measuring equipment, specifically to that part of it, which deals with issues of assessing the accuracy of gyroscopic devices and systems. Allows you to reduce the time cost of autonomous measurement of their own departures of gyroscopic instruments while maintaining accuracy. Pre-triaxial gyrostabilizer is set by the correction system to a specific position relative to the horizon and meridian. In the initial position, the values of gyro correction currents are measured and stored along three measuring axes. Alternating moments are formed on the input axes of the gyroscopes with the help of torque sensors, the amplitudes of the first and second current pulses having different values that are multiples of the correction currents, and the polarity of the first current pulses is opposite to the polarity of the correction currents. The calculations are performed according to the formulas specified in the description.