Study on electrostatic self-excited driving for tuning fork micromachined gyroscope with large Q value;

The feasibility of square wave driving were demonstrated,adding phase shift element in self-excited driving circuit was presented,to make the Micro Quartz Tuning Fork Gyroscope s driving oscillation frequency equal to it s mechanical resonant frequency,the switch synchronous phase sensitive demodulation s application in det.

In order to improve detection precision and get constant amplitude and frequency of driving oscillation velocity, self-excited driving mode of micromachined gyroscope is presented, which enables driving motion to oscillate stably with resonance frequency of driving mode and to keep steady amplitude of driving oscillation velocity.

A new closed-loop drive scheme,which decouples the angle and gain of the self-oscillation-driven,is adopted for the SMG.

A realization method of the self-excitation drive circuit of the micromachined gyroscope with AGC function is presented.

laser-driven flyer device is one of the important ground systems to simulate hypervelocity impact of space debris to spacecraft.

This article introduces the feasibility test of laser-driven debris.

One-dimensional shock loading on the material can be realized using the technique of laser-driven macro-flyer plate and is of applications to the research of high pressure equation of state(EOS) and dynamics under high strain rate.