摘要：振动陀螺仪位列新一类固态陀螺,已成为与机械转子陀螺、光学陀螺相并列的三大类陀螺之一。在分析振动耦合误差的基础上,提出了振动陀螺仪闭环控制系统的一般设计方案。由于驱动振动幅度远大于读出振动,因此极小的耦合量就会造成很大的检测误差。同时,驱动振动耦合到读出轴的振动信号与角速率振动信号同相,他不可简单地进行分离的特性使其成为影响陀螺精度的要害问题。通过闭环控制系统的设计和实施,可有效提高振动陀螺仪的精度。

摘要：This paper proposes a novel robust design method for the sense mode of a MEMS vibratory gyroscope based on fuzzy reliability and Taguchi design. The principles of fuzzy reliability and Taguchi design are both introduced and described in detail. Experimental results demonstrate that the signal to noise ratio of the robust design scheme is better than those of the other experimental *** the full temperature range from -40 to 80°C, the temperature sensitivities of phase margin, gain margin, sensitivity margin,the maximum amplitude of open loop system, bandwidth of closed loop system, and the performance function of the robust design system are all smaller than those of the original design system. Meanwhile, the temperature sensitivity of the bandwidth of the robust design system is improved to 126 from 1075 ppm/°C. Moreover, the bias drift over the full temperature range of the robust design system is improved to 61°/h from 179°/h.

摘要：This paper presents a novel design method of force rebalance control for the sense mode of micromachined vibratory *** theoretical deductions are performed to identify a precise linear model of the open loop system of the sense mode,which is crucial for the PI controller *** frequency responses obtained by experimental tests agree well with those calculated with the theoretical model,indicating the accuracy of the theoretical *** results demonstrate that the bandwidth of the closed loop is extended to 94.8 Hz from 2.3 Hz in the open loop and the quadrature signal is suppressed by about 64 dBV in the closed loop *** overshoot and stable time in the step response of the closed loop system are measured to be about 15% and 35 ms,*** mode-splitting gyroscope with the closed loop controlled sense mode achieves a scale factor of 41.0 mV/deg/s with nonlinearity of 0.09% and asymmetry of 1%,and a bias instability of 4.0 °/h with angle random walk of 0.171 deg/h1/2.

摘要：已经设计、制造出了一种新的微型机械振动陀螺,其有效面积不超过1mm^2。业已证实,这种陀螺可用半导体加工技术生产,而且试验结果与预期的结果基本一致。该陀螺的进一步发展可使仪表小型化、功耗低,特别是在大批量生产时可大大降低成本。

摘要：动物与人类战争早就结下了不解之缘。人类用动物帮助作战已有几千年的历史了。但在地球上百万种动物中,人类选来参与军事行动的仅是极少数。人类对动物军事利用思想的发展创造了军事仿生学。也可以说,动物参战孕育了军事仿生学的萌芽。现代军事仿生已进入了一个新阶段,通信技术、侦察技术、观测技术、隐形技术都在从动物界觅寻新的设计参考。

摘要：微机械振动陀螺是近几年发展起来的新型惯性元件 ,其误差源主要有微机械结构的 Brown-ian噪声、电路噪声、机械耦合误差及电子机械耦合误差等 ,这些误差严重影响陀螺仪的精度 .本文提出了单级隔离耦合和双级隔离耦合的结构方案 ,有效减小机械耦合误差 ,提高精度 .