摘要
星载大气成分临边探测光谱仪在采集高度方向上光信息时需要借助反射镜的反射,为满足光谱仪扫描需求,设计了一款扫描摆镜驱动控制系统,并在地面模拟验证了扫描方向上的光谱数据采集。设计的驱动控制系统基于STM32微控制器,采用DRV8833C电机驱动电路和闭环数字PID调节器,利用有限转角直流无刷力矩电机作为光谱仪摆镜控制系统的执行机构,并使用18位单圈绝对值光电编码器作为位置传感器。进而搭建了摆镜控制系统和试验平台,利用光电自准直仪对摆镜系统性能进行试验验证,测试了系统的指向精度。结果显示平均指向精度小于12.15′′,最大偏差小于19.6′′,最小偏差小于7.46′′,满足工程预研阶段的主要指标要求。
Because the spaceborne atmospheric composition limb detection spectrometer needs to use the reflection of the reflector when collecting the optical information in the height direction,in order to meet the scanning requirements of the spectrometer,a scanning pendulum mirror drive control system is designed,and the spectral data acquisition in the scanning direction is simulated and verified on the ground.The designed drive control system is based on STM32 microcontroller.DRV8833C motor drive circuit and closed-loop digital PID regulator are adopted in the system,a finite rotation angle DC brushless torque motor is used as the actuator of the spectrometer swing mirror control system,and an 18-bit single-turn absolute value photoelectric encoder is used as position sensor.Then the swing mirror control system and test platform are built,the performance of the swing mirror system is verified by the photoelectric autocollimator,and the pointing accuracy of the system is tested.The results show that the average pointing accuracy is less than 12.15′′,the maximum deviation is less than 19.6′′,and the minimum deviation is less than 7.46′′,which meets the requirements of the main indicators in the pre-research stage of the project.
作者
鲁晓峰
曾议
曹子昊
鲁月林
廖捷
杨东上
邱晓晗
司福祺
LU Xiaofeng;ZENG Yi;CAO Zihao;LU Yuelin;LIAO Jie;YANG Dongshang;QIU Xiaohan;SI Fuqi(School of Biological Food and Environment,Hefei University,Hefei 230601,China;Key Laboratory of Environmental Optics and Technology,Anhui Institute of Optics and Fine Mechanics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;School of Mechanical Engineering,Anhui Polytechnic University,Wuhu 241000,China)
出处
《大气与环境光学学报》
CAS
CSCD
2022年第5期570-578,共9页
Journal of Atmospheric and Environmental Optics
基金
国家自然科学基金青年基金,61905256。
关键词
大气成分
临边探测
光谱仪
扫描摆镜
atmospheric composition
limb detection
spectrometer
scanning swing mirror
