星载差分吸收光谱仪摆镜控制系统设计

鲁月林; 司福祺; 薛辉; 陈军; 江宇; 刘晓磊; 陈卓一

doi:10.3788/OPE.20192703.0630

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星载差分吸收光谱仪摆镜控制系统设计

微纳技术与精密机械 | 更新时间：2020-08-13

- 星载差分吸收光谱仪摆镜控制系统设计
- Design of scanning mirror control system for satellite-borne DOAS spectrometer
- 光学精密工程 2019年27卷第3期页码：630-636
- 作者机构：
  
  1.中国科学院安徽光学精密机械研究所，安徽合肥 230031
  2.中国科学技术大学，安徽合肥 230026
  3.中国空间技术研究院总体部，北京 100094
- 作者简介：
  
  [ "鲁月林(1992-)，男，安徽铜陵人，博士研究生，2014年于中国农业大学工学院获得学士学位。主要从事航空航天光电子设计方面的研究。E-mail:yllu@aiofm.ac.cn" ]
- 基金信息：
  
  国家自然科学基金资助项目(No.41605017);国家重点研发计划资助项目(2016YFC0200401);国家重点研发计划项目资助(2017YFB0503901)
- DOI：10.3788/OPE.20192703.0630
  中图分类号： TH744
- 收稿日期：2018-10-11，
  
  录用日期：2018-11-9，
  
  纸质出版日期：2019-03-15
- 稿件说明：
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鲁月林, 司福祺, 薛辉, 等. 星载差分吸收光谱仪摆镜控制系统设计[J]. 光学精密工程, 2019,27(3):630-636.

Yue-lin LU, Fu-qi SI, Hui XUE, et al. Design of scanning mirror control system for satellite-borne DOAS spectrometer[J]. Optics and precision engineering, 2019, 27(3): 630-636.
鲁月林, 司福祺, 薛辉, 等. 星载差分吸收光谱仪摆镜控制系统设计[J]. 光学精密工程, 2019,27(3):630-636. DOI： 10.3788/OPE.20192703.0630.

Yue-lin LU, Fu-qi SI, Hui XUE, et al. Design of scanning mirror control system for satellite-borne DOAS spectrometer[J]. Optics and precision engineering, 2019, 27(3): 630-636. DOI： 10.3788/OPE.20192703.0630.

摘要

针对差分吸收光谱仪搭载于地球同步轨道卫星时对地成像的要求，设计了一种扫描摆镜转动控制系统。从摆镜控制结构设计、控制电路设计两个方面阐述了摆镜系统的方案。摆镜系统受载荷主控器控制，接收控制指令并回传当前摆镜位置状态

通过LMD18200驱动芯片进行功率输出

由步进电机和谐波减速器构成的驱动器驱动摆镜转动，编码器读取摆镜角度信息。给出了PWM(Pulse Width Modulation)波占空比的测定办法，并提出通过回转到成像起始点之前的方式，消除回程误差对成像区域步距不确定性的影响。实验结果表明该系统的步距角均值偏差小于1″，最大偏差小于5″

标准偏差小于2″。该光谱仪摆镜控制系统满足步距精度指标要求。

Abstract

To meet the requirement of step accuracy for the scanning mirror of a Differential Optical Absorption Spectroscopy (DOAS) mounted on a geosynchronous orbit satellite

the design of a scanning mirror control system with high accuracy is proposed that specifically considers structural and circuit design aspects. In this scheme

the scanning mirror system was controlled by the master controller that received instructions and sended back information about the current position of the scanning mirror. The scanning mirror controled circuit outputs power through the LMD18200 driver chip. Then

the driver consisting of a stepping motor and harmonic reducer drived the scanning mirror to rotate

and the encoder readed the position information of the scanning mirror. In this study

a method of setting the duty cycle of the PWM was proposed

and the control and elimination methods of the harmonic gear transmission hysteresis were studied. Experimental results show that the mean deviation of the step angle of the system is less than 1″

the maximum deviation is less than 5″

and the standard deviation is less than 2″. This control system design satisfies the requirements of step accuracy for the scanning mirror and provides a reference for related applications on subsequent satellite payload.

关键词

Keywords

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