硅微阵列陀螺仪闭环驱动控制技术研究  

Research on Closed-Loop Driving Technology for Silicon Micro-Gyroscope Array

作　　者：张印强[1,2] 王寿荣[1] 

机构地区：[1]东南大学微惯性仪表与先进导航技术教育部重点实验室,江苏南京210096 [2]南京工业大学自动化与电气工程学院,江苏南京210009

出　　处：《测控技术》2014年第3期64-67,共4页Measurement & Control Technology

基　　金：国家自然科学基金资助项目(60974116);江苏省高校自然科学研究项目(12KJD460003)

摘　　要：为了进一步提高硅微阵列陀螺仪驱动模态的控制精度与稳定性,深入分析了硅微阵列陀螺仪的结构设计和闭环驱动控制技术。基于硅微阵列陀螺仪闭环驱动控制的特点,以现场可编程门阵列(FPGA)为核心控制平台,实现一种基于自激振荡原理的数字化闭环驱动电路。分析并建立了自激振荡与幅度控制的基本模型,基于Simulink实现了闭环自激驱动的仿真。实验结果表明,常温下驱动幅度控制精度达到9×10^(-5),并能有效跟踪驱动模态谐振频率。The structure design and closed-loop driving techniques of a silicon micro-gyroscope array（SMGA） are studied in detail to improve the performance and stability of the primary mode control. Based on the charac teristics of the closed-loop driving control of SMGA, a new digital closed-loop driving circuit that is based on the self-oscillation principle and controlled by field programming gate array（FPGA） is proposed. The models for the self-oscillation and amplitude control are analyzed and established, then the simulation model using Simulink software is presented. The test result shows that the precision of the relative deviation of the oscillating amplitude is up to 9 x 10^-5 and the driving frequency can effectively follow the change of the resonant frequen cy.

关 键 词：硅微阵列陀螺仪 自激驱动 闭环控制 数字移相 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]