Structural Solutions that Increase the Dynamic Accuracy of a Wave Solid-State Gyroscope

The development of wave solid-state gyroscopes (VTG) is one the promising areas gyroscopic angular velocity sensors. VTG from standpoint manufacturing technology, tuning and control systems, as well accuracy characteristics, has a number advantages compared to other types gyroscopes. When developing VTG, they strive reduce gyroscope's own care, zero signal bias, non-linearity scale factor in operating temperature range However, when creating device, due attention often not paid existing opportunities improve dynamic gyroscope by structural solutions for building circuits information processing. solution this problem was goal work. Using methods theory automatic control, dynamics with metal resonator piezoelectric elements closed-loop mode Сoriolis acceleration compensation are studied. Piezoelectric perform functions displacement force Two constructing processing proposed considered. Relations established selecting parameters links these contours, which provide an increase gyroscope. In first case, structure allows us significantly errors caused difference coefficient at different frequencies measured bandwidth. Such can be recommended solving measurement it necessary accurately measure velocity, phase lag output relation secondary importance. second construction corresponds transfer function relative error secondorder astatism, absolute frequency band 10 Hz does exceed 0.1 %.