高精度石英挠性加速度测量装置的结构设计与研究

加速度测量设备是现代水下航行器操纵控制系统中不可缺少的关键器件之一,其性能的好坏在整个系统中起着关键性的作用.本文首先介绍了石英挠性加速度测量装置的工作原理,然后针对磁场和温度变化影响石英挠性加速度计标度因数和零偏的稳定性问题,提出屏蔽结构设计和温度控制结构设计优化方案,并对优化效果进行预估计算.结果表明,经结构优化后加速度测量装置的测量精度明显提升.

Research on structure design of quartz-flex accelerometer

Quartz-flex accelerometer is one of the key components for the Underwater vehicle Control System, the state of its performance will influence the whole system seriously. The stucture and the principle of the quartz-flex accelerometer is simply introduced in the paper firstly, then in view of the magnetic field and temperature variations affect quartz flexible accelerometer scale factor and the stability of the zero bias problem, the method of shielded structure design and temperature control structure design is put forward. The effect of optimize design is evaluated. The results show that the acceleration measurement device after structure optimization of measurement accuracy is improved significantly.