可重部署钠激光雷达接收系统减震设计

Shock absorption design of the receiving system for re deployment of sodium lidar

为了防止中国科学院临近空间环境野外综合探测站(廊坊,39°N,116°E)的钠荧光多普勒激光雷达在可重新部署运输过程中震动对激光雷达系统的不良影响,保证系统测量的稳定性和精度,文中主要对钠激光雷达接收系统进行了减震设计。首先选用了空气悬挂车载底盘和对望远镜的主镜运输以及望远镜安装运输平台等进行了三级减震设计,通过仿真模拟表明通过减震设计的望远镜安装运输平台冲击位移小于望远镜的主镜运输减震设计要求;其次通过跑车实验表明通过减震设计主镜室的最大振动加速度满足望远镜运输条件设计输入要求;最后通过钠荧光多普勒激光雷达系统的观测实验进一步验证了在长途运输中减震设计的可靠性。

In the process of the re deployment, in order to prevent the adverse effects and assure the stability and accuracy of the sodium Doppler fluorescence lidar in the near space environment of the Chinese Academy of Sciences（Langfang, 39° N, 116° E）, the shock absorption design of the receiving system in sodium lidar was mainly carried out. Firstly, the three-level shock absorber design was carried out by selecting the air suspension chassis, the main mirror of the telescope, and the platform for the installation of the telescope. Through simulation, it was found that the impact displacement of the telescope platform is less than the design requirements of the primary mirror of the telescope. Secondly,by the sports truck experiment, the maximum vibration acceleration of the main mirror chamber was found to meet the requirements of the design input of the telescope. In the end, the reliability of shock absorption design of the long distance transportation is further verified by the observation experiment of the sodium doppler fluorescence lidar.