Analysis and application of overload instability based on typical second-order in-ertial system
Through the analysis of the transfer function of the typical second-order inertial system,the structural damping,the principle of the torque feedback network of the servo circuit,etc.,the system instability phenomenon of the acceleration-sensitive inertial device output during the carrier acceleration measurement process is analyzed in detail.And then the servo circuit is debugged.The resistance value of the adjustment resistor is reduced,the electri-cal stiffness of the servo circuit is optimized,and the natural frequency of the system is reduced,so as to avoid the individual differences in the damping coefficient of the acceleration inertial device caused by the structure and as-sembly of the meter head,and eliminate the system instability phenomenon caused by work overload within the range.