Study on utility of an approximated transfer function of dynamically tuned dry gyro

The use of a dry gyro in analog rebalance loops is described and a method to improve the static and dynamic characteristics is presented. The transfer function is derived by transforming a generalized equation into the approximated form based on the design specifications of the mechanical parts. This approximation is proved to be reasonable by the result that the differences between the numerical solutions of a generalized equation and those of an approximated equation are less than 1.0%, and their mean values are less than 0.003%. Noninteracting control is analyzed and the stability conditions are investigated. A fundamental design conception for rebalance loops was established.