【作者】 张文理； 田逢春； 宋安；

【Author】 ZHANG Wen-li;TAIN Feng-chun;SONG An;College of Communication Engineering,Chongqing University;

【机构】 重庆大学通信工程学院；

【摘要】 光吸收气体传感技术由于具有与人类嗅觉细胞相似的巨量并行、交叉敏感及广谱响应特性,适用于承担电子鼻核心的气体传感任务^[1]。而常规的光栅光谱仪存在着光谱范围与分辨率相互制约的缺陷,因此本文提出将同时兼顾宽光谱、高分辨特性的空间外差光谱技术（SHS）^[2]应用于气体传感,构建出一种新型的基于光吸收和SHS的可视化气体传感技术（V-GST）。为了验证方案的可行性,文章首先构建可视化气体传感技术的系统模型,并搭建相应的实验平台,然后利用该平台对不同光源、不同浓度的NO₂进行检测。更多还原

【Abstract】 Light absorption gas sensing technology has the characteristics of massive parallelism,cross-sensitivity,extensive and fast responsiveness,which make it suitable for the sensing task of electronic nose.However,there are constraints between the spectral range and the resolution of spectrometer.Therefore,this paper proposes a spatial heterodyne spectroscopy（SHS） technique that combines both broad spectru. and high resolution characteristics^[2] for gas sensing,and constructs a new type of Visual gas sensing technology（V-GST） based on light absorption and SHS.Firstly,a system model of the visual gas sensing technology was constructed and the corresponding experimental platform was built.Then different light sources and different concentrations of NO₂ were detected to verify the performance of the system.更多还原