基于BM3803的步进电机控制系统设计与实现

针对星载大气痕量气体差分吸收光谱仪太阳定标光路切换转动部件的实现,提出了基于BM3803的步进电机控制系统,通过步进电机带动扭簧转动凹面反射镜,实现光路的切换。设计了基于国产航天芯片BM3803FMGRH和专用驱动芯片LMD18200的步进电机开环控制系统,给出了基于BM3803FMGRH的控制电路和搭建了LMD18200的驱动电路,编写了步进电机的控制程序。当步进电机转动89步时,扭簧旋转角度为80.1°,微动开关导通,光路切换成功。为后续星载差分吸收光谱仪的设计提供参考。

Abstract

Aiming at the realization of the sun-calibrated optical path switching component of the space-borne differential optical absorption spectrometer, a stepping motor control system based on BM3803 is proposed. The switching of the optical path can be realized by rotating the concave mirror with torsion spring driven by the stepping motor. Firstly, the open-loop control system of stepping motor based on domestic aerospace chip BM3803FMGRH and special drive chip LMD18200 is designed. Then the control circuit based on BM3803FMGRH and the drive circuit of LMD18200 are constructed, and the control program of stepper motor is programmed. When the stepping motor rotates 89 steps, the torsion spring rotates at an angle of 80.1°, the micro switch is turned on, and the optical path is switched successfully. It provides a reference for the design of the subsequent space-borne differential absorption spectrometer.

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许权, 黄书华, 司福祺, 韩春慧, 张珅, 鲁月林, 刘文清. 基于BM3803的步进电机控制系统设计与实现[J]. 大气与环境光学学报, 2019, 14(6): 463. XU Quan, HUANG Shuhua, SI Fuqi, HAN Chunhui, ZHANG Shen, LUYuelin, LIU Wenqing. Design and Implementation of Stepping Motor Control System Based on BM3803[J]. Journal of Atmospheric and Environmental Optics, 2019, 14(6): 463.

基于BM3803的步进电机控制系统设计与实现

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