Multitarget gas alarm system for high-performance and anti-interference chemical warfare agents simulants detection  

作　　者：Yubin YUAN Qiang WU Menglong JIAO Haiyang WU Weihua LIU Xuming WANG Xiangrui BU Gong LI Chuanyu HAN Long HU Xin LI Xiaoli WANG 

机构地区：[1]Shool of Microelectronics,School of Electronics and Information Engineering,Xi’an Jiaotong University,Xi’an,710049,China [2]The Key Lab of Micro-nano Electronics and System Integration of Xi’an City,Xi’an,710049,China [3]Hangzhou Institute for Advanced Study,University of Chinese Academy of Sciences,Hangzhou,310024,China [4]School of Automation and Information Engineering,Xi’an University of Technology,Xi’an,710048,China [5]Key Laboratory for Physical Electronics and Devices of the Ministry of Education,Xi’an Jiaotong University,Xi’an,710049,China [6]School of Science,Xi’an Jiaotong University,Xi’an,710049,China

出　　处：《Science China(Technological Sciences)》2025年第3期349-358,共10页中国科学(技术科学英文版)

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.61671368,62174130);Basic Public Welfare Research Planning Project of Zhejiang Province(Grant No.LGG19F040002);the Science and Technology Program of Shaanxi Province(Grant No.2021GY-061);the Opening Project of Key Laboratory of Microelectronic Devices&Integrated Technology,Institute of Microelectronics,Chinese Academy of Sciences,National Defense Foundation of China(Grant Nos.2022-JCJQ-JJ-1099,2022-JCJQ-JJ-1108);the Fundamental Research Funds for the Central Universities。

摘　　要：Chemical warfare agents(CWAs)can cause significant harm to health and even death in a very short time even when inhaled in small amounts(~100 mg min/m^(3)).Detection equipment based on conventional techniques,including gas chromatography-mass spectrometry,Raman spectroscopy,fluorescence spectroscopy,and ion mobility spectrometry,have the disadvantages of high cost,long detection time,and high power consumption.Rapid,portable,and convenient equipment for target CWAs detection under interference is a challenge.In this study,we propose an alarm system comprising a multitype micro sensor array and a field-programmable gate array-based readout circuit for CWAs simulants detection.Under common volatile organic compound,temperature,and water vapor interference,the proposed multitype sensor-based detection system realizes an alarm function in less than 20 s with thresholds of 1 ppm dimethyl methylphosphonate(DMMP),4.6 ppm 2,2'-dichlorodiethyl ether(DCE),and 20 ppm SO_(2).Furthermore,the proposed detection system was evaluated outside the laboratory and passed the wilderness test,demonstrating its reliability in the atmosphere.We believe that the proposed alarm system will contribute to the development of intelligent,portable,low-cost,and anti-interference CWAs detection technology.

关 键 词：alarm system CWAs simulants surface acoustic wave sensor mixed gas ANTI-INTERFERENCE 

分 类 号：TQ086.52[化学工程] TP277[自动化与计算机技术—检测技术与自动化装置]