CAJ | 학술논문

离子迁移谱技术是一种痕量物质检测技术，广泛应用在毒品、爆炸物探测和环境污染监测等方面。文中将离子迁移谱和半导体气敏传感器结合，研制了一种新型集成检测系统。介绍了集成检测系统的工作原理，研究了迁移管的设计和半导体气敏传感器的选型，深入分析了离子迁移信号调理电路、ADC采集和存储电路、半导体传感器控制电路的设计过程，详细阐述了集成检测系统的气路系统。选择浓度为80 ppm CO样气进行了集成检测系统的实验验证，获得了CO离子迁移谱和半导体气敏传感器的检测输出信号，给出了CO的识别方法。
리자천이보기술시일충흔량물질검측기술，엄범응용재독품、폭작물탐측화배경오염감측등방면。문중장리자천이보화반도체기민전감기결합，연제료일충신형집성검측계통。개소료집성검측계통적공작원리，연구료천이관적설계화반도체기민전감기적선형，심입분석료리자천이신호조리전로、ADC채집화존저전로、반도체전감기공제전로적설계과정，상세천술료집성검측계통적기로계통。선택농도위80 ppm CO양기진행료집성검측계통적실험험증，획득료CO리자천이보화반도체기민전감기적검측수출신호，급출료CO적식별방법。
Ion mobility spectrometry is a trace organic analytical technology widely used for quick detection of drugs,explo-sives and environmental pollutants.This paper designed a new integrated detecting system combining ion mobility spectrometry and semi-conductor gas sensitive sensors.The main functional principal of the system was introduced,and design of the ion mobility sen-sors and choose of the semi-conductor gas sensitive sensors were studied. The procedures of ion mobility signal modulated circuit, ADC data sample and store circuit and semi-conductor sensor control circuit were explicated.The gas structure of the integrated sys-tem was elaborated.The experiments detecting 80 ppm CO were completed,which acquired the ion mobility spectrometry of CO and output voltages of semi-conductor sensors.Finally,the recognition algorithm of CO was researched.