METHOD OF DYNAMIC AND STATIC BALANCING OF RESONATOR OF VIBRATORY SOLID GYRO Russian patent published in 1995 - IPC

FIELD: instrumentation engineering. SUBSTANCE: four dynamically unbalanced masses m/4 are determined. After this visualized projection of spatial interference picture of oscillations of resonator on to plane perpendicular to its symmetry axis is obtained. Point with zero amplitude of oscillations is found by it as geometrical center of crossing of two straight lines on surface of picture of oscillations of resonator connecting in pairs vertexes of lines of interference picture nearest to center. Unbalance is determined as value proportional to distance between point with zero amplitude of oscillations and geometrical center of resonator. Its projections Δx и Δy on coordinate system which center is coupled to geometrical center of resonator are found. Value of components of resultant of unbalanced mass m_1(2,3,4) in each of four obtained points is determined by formulas m₁=m+4ΔxK₁/4;; m₂=m+4ΔyK₁/4; m₃=m-4ΔxK₁/4^;; m₄=m-4ΔyK₁/4,, where m₁-m₄ are components of unbalanced mass; K₁ is proportionality factor. After this obtained components of unbalanced mass are withdrawn from four points of edge of hemispherical resonator of solid wave gyro. EFFECT: increased precision and reduced time of balancing. 2 cl, 2 dwg