密闭环境多气体传感器检测方法研究  

Research on Multi-gas Sensor Measurement Method in Closed Environment

作　　者：柴寿臣[1] 蔡春丽[1] 张枫[2] 

机构地区：[1]中国电子科技集团公司第四十九研究所,黑龙江哈尔滨150001 [2]空军驻黑龙江地区军事代表室,黑龙江哈尔滨150036

出　　处：《仪表技术与传感器》2012年第4期76-78,共3页Instrument Technique and Sensor

摘　　要：密闭环境多气体传感器测量受环境因素及相互间交叉干扰影响,测量误差大,分辨力低,不能满足工程需求。针对这些不足,搭建密闭测试环境,应用模式识别技术、多传感器建模技术、数据融合技术,采用广义叠加法建立多环境参数多气体传感器交叉干扰模型,给出气体间相互干扰度,利用干扰度作为影响权值建立初步迭代叠加模型,并通过BP网络进行定性识别和定量分析,验证模型的合理性和可行性。仿真和实验结果表明:这种测量方法可有效降低环境因素影响,提高测量精度和分辨力,满足工程需求。The measurement of multi-gas sensor in closed environment was influented by environmental factors and cross-interference,the measuring error is big,the resolution is low,and can’t meet the project requirement.In view of these insufficiencies,an airtight test environment was built.And the model of multi-environment parameter multi-gas sensor cross-interference was established by using generalized superposition method and appling pattern recognition technology,multi-sensor modeling technology,data fusion technology,and the degree of mutual interference between the gases was presented.It was used for the influence weight to establishment preliminary iteration superimposition model,and confirm the rationality and the feasibility of the model by carrying on the qualitative recognition and the quantitative analysis through the BP network.The results of simulation and experiment indicate the measuring method may reduce effectively the disturb between the gases and the influence of environmental factor,increase the measuring accuracy and the resolving power,satisfy the project requirement.

关 键 词：多气体传感器 交叉干扰 干扰度 BP网络 

分 类 号：TP206[自动化与计算机技术—检测技术与自动化装置]