便携式辉光放电重金属检测仪的设计  

Design of Heavy Metal Detecting Instrument with Glow Discharge

作　　者：白江浩[1] 文国军[1] 朱振利[2] 杨春[2] 许新建[1] 

机构地区：[1]中国地质大学(武汉)机械与电子信息学院,湖北武汉430074 [2]中国地质大学(武汉)生物地质与环境地质国家重点实验室,湖北武汉430074

出　　处：《仪表技术与传感器》2017年第3期34-36,53,共4页Instrument Technique and Sensor

基　　金：科技部国家国际科技合作专项项目(2014DFA20720);教育部新世纪优秀人才支持计划项目(NCET-13-1015)

摘　　要：为了解决用于重金属检测的大型实验室仪器体积大、功耗高、维护费用高以及检测实时性差的缺点,设计了一种基于辉光放电法的便携式重金属检测仪。介绍了仪器的工作原理,设计了以STC12C5A60S2单片机为核心的下位机,包括工作参数检测电路、控制电路、预电离及直流放电电路、串口通信电路和光谱元件光谱仪等,以及人机化的上位机软件,包括串口通信子程序、仪器控制子程序和数据处理子程序。实验结果表明,仪器可以准确地采集特征光谱,能够为重金属检测和分析提供可靠的数据支持。In order to overcome the disadvantages of the current large-scale laboratory instrument used to detect trace heavy metals such as large volume, high power consumption, high maintenance cost, bad real-time, the portable trace heavy metal detecting instrument based on glow discharge was designed.The working principle of the detector was introduced and the lower processor such as the minimum hardware circuit based on STC12C5A60S2 was designed, including operating parameter detection circuit, control circuit, preionization and DC discharge circuit, serial port circuit, spectrometer, and the man-machine software design such as serial communication subprogram, instrument control subprogram and data processing subprogram.The results show that the detector can accurately acquire characteristic spectrum, and can provide credible data for detection and analysis of heavy metals.

关 键 词：便携式 重金属 检测仪 辉光放电 硬件电路 软件设计 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]