Metallic Cylindrical Resonator Vibratory Gyroscope Sensitivity to Random Vibration

Abstract

this work presents low-cost metallic cylindrical resonator vibratory gyroscope test results to determine g <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> _ sensitivity to random vibration in wide frequency ranges up to 6400 Hz that covers its resonant frequency and in wide root mean square amplitude ranges up to 20 g. Gyro bias dependence on the root-mean-square value of vibration amplitude is graphically presented. The coefficients of g2-sensitivity are computed by fitting the measurement results with the second-order curves. Angle random work and white noise of bias components in the dependence on vibrating amplitude are also graphically presented with a determination of their sensitivity coefficients to random vibration. The test results show that metallic cylindrical resonator gyro is rugged and can be used in tactical applications where a severe vibration environment does not allow using other gyros.