基于DSP的空间小型磁偏转质谱计电控系统的设计  

Design of electric control system for a space miniature magnetic sector mass spectrometer based on DSP

作　　者：高青松[1] 银东东[1] 郭美如[1] 雷军刚[1] 李云鹏[1] 

机构地区：[1]兰州空间技术物理研究所真空技术与物理重点实验室,甘肃兰州730000

出　　处：《电子技术应用》2015年第8期53-56,共4页Application of Electronic Technique

摘　　要：空间小型磁偏转质谱计是一种用于轨道、行星大气和土壤成分分析的仪器,设计了一种基于DSP的电控系统,作为质谱计的核心组成单元,用于离子源微弱电流信号的检测与采集、扫描高压控制、灯丝电流控制、性能监测以及CAN总线通信等。2012年11月在我国某型号新技术验证卫星上实现了搭载,经过两年多在轨实验,探测出地球卫星轨道上以及卫星放出的气体成分。应用表明,小型磁偏转质谱计电控系统体积小、重量轻,信号检测精确,控制精度高,运行稳定可靠。The space miniature magnetic sector mass spectrometer is a instrument of be used of analyse of orbit, planet atmosphere and soil component, Based on DSP, designed a type of electric control system as a key unit for measure of weak current signal of hydronium headstream, control of scan high volt and filament current, capability monitor and CAN bus data communication. In the November, 2012, it is carried by XX- 1 satellite, and detected the atmosphere compositions in the satellite orbit and gas- emited from satellite. The results of the space test shows, with a small cubage and weight, the system operates stably and credibly, acquires data accurately and with a high precision control.

关 键 词：空间质谱计 磁偏转 DSP 微弱电流检测 扫描控制 

分 类 号：V447.1[航空宇航科学与技术—飞行器设计]