利用加速度反馈的大型光电设备主轴控制技术  

Mount control for large optoelectronic equipment by using acceleration feedback

作　　者：杨晓霞[1] 阴玉梅[1] 孟浩然[1] 张斌[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《中国惯性技术学报》2013年第4期421-424,共4页Journal of Chinese Inertial Technology

基　　金：中国科学院三期创新基金资助项目

摘　　要：随着光电跟踪设备的大型化,在系统的惯量增大的同时,机械谐振频率一般会降低,此时控制系统的带宽设计将受到限制,而且大型的光电设备更容易受到风阻、地基振动等各种干扰的影响,从而降低系统的控制精度。由于惯性测量元件——加速度计直接感受被测对象的受力情况,通过引入加速度反馈控制回路,在不增大系统带宽的前提下,中低频段的扰动抑制传递函数幅值下降约25 dB。理论、仿真和实验三方面均验证了该控制方式的有效性。With the larger scale of the optoelectronic equipment, the inertia of the equipment will be larger and the mechanical resonance frequency will be lower. This will bring a limitation to the designing of the bandwidth of the system. What＇ more, the larger equipment will be more easily effected by various external disturbances, such as wind load, ground vibration, etc, so as to reduce the control accuracy of the system. The acceleration feedback control will increase the disturbance rejection property of the system effectively without change the bandwidth of the system. It is demonstrated that during the intermediate- and low-frequency bands, the magnitude of the disturbance rejection transfer function decreased about 25 dB. The effectiveness of the control algorithms is demonstrated by theory analysis, simulation and experiment.

关 键 词：加速度反馈 光电设备 主轴控制 扰动抑制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]