大型光电设备基准平面自动调平系统

Automatic-leveling system for base-plane of large-size photoelectric equipment

研制了一种光电设备自动调平系统。选用了3条机械支腿支撑大型光电设备载车,由安装在光电设备基座上的倾角传感器测得基准平面的倾角大小及方向,将此角度根据调平算法换算为3个机械支腿的伸长量,驱动机械支腿伸长使基准平面达到水平。给出了支撑腿数量和机械式支腿的选择依据,设计了一种可以在小角度范围内自动矫正受力方向的机械支腿,设计了整个传动系统,并且给出了驱动电路和调平算法。实验测定其调平精度为0.003°,整个光电设备调平时间约为120 s。实验结果表明:与以往的调平系统相比,该系统缩短了光电设备开展工作的准备时间,提高了调平精度。

An automatic-leveling system is developed. Three mechanical supportings are chosen to sustain a large-size photoelectric equipment, and a obliquity-sensor fixed on the pedestal of the photoelectric equipment is used to measure the size and direction of the obliquity angle from a baseplane. Based on a leveling algorithm, the obliquity angle is converted to elongations of the mechanical supporting to drive the mechanical supporting to level the baseplane. The reasons for choosing three supporting points and mechanical supporting are introduced, then mechanical supportings and the entire transmission system are designed. A driven circuit and automatic-leveling arithmetics are given also. Automatic-leveling experiment indicates that the leveling precision of the automatic-leveling system reach 0. 003°,and the leveling time of photoelectric equipment is about 120 s,which shows that this system is better than formerly systems on prepared time and precision.