基于USB6211和LabVIEW伏安型电子舌测试系统的设计与实现  

Design and Implementation of Voltammetric Electronic Tongue Test System Based on USB6211 and LabVIEW

作　　者：周奕霖 康冠朋 王志斌[1] 吴涛[1] 于亚萍[1,2] 赵辉[1,2] 杨仁杰[1] 

机构地区：[1]天津农学院工程技术学院,天津300384 [2]天津大学电气与自动化工程学院,天津300072

出　　处：《天津农学院学报》2016年第4期47-50,共4页Journal of Tianjin Agricultural University

基　　金：天津市大学生创新创业训练计划项目“基于伏安型电子舌掺杂尿素牛奶检测系统的开发”(201510061093);天津市自然科学基金项目“基于二维相关荧光谱土壤中PAHs信息提取及检测方法研究”(14JCYBJC30400)

摘　　要：伏安型电子舌是对液态物质进行检测的一种新型测试系统,主要采用交互敏感电极阵列结合多变量数据分析方法对被测对象进行定性或定量分析。整个系统由激励信号源、传感器阵列、恒电位电路、数据采集电路和多变量数据分析软件组成,在外加激励信号作用下,对工作电极响应信号的大小或响应信号图的形状进行采集与分析。本文针对电化学工作站价格昂贵并且进行伏安检测时只提取电化学反应特征信息的不足,开发设计了一种伏安型电子舌检测系统。本系统由数据采集卡USB6211结合LabVIEW软件来实现激励信号的产生和伏安响应数据的采集、显示与存储。采用主成分分析法对纯牛奶和掺杂浓度为160 mg/L三聚氰胺牛奶测试数据进行分析,分析结果能清楚的区分该实验中纯牛奶和掺杂牛奶样品,整个系统具有较好的稳定性。A new measurement technology, voltammetric electronic tongue based on partially overlapping sensitive electrodes coupled with multivariable data analysis, has been used in detecting lipid food. It consists of external excitation signal sources, sensors array, potentiostat, data acquisition and multivariable data analysis method, which collects the size and shape of the transient response of tested objective from working electrodes. Aiming at these problems of electrochemical workstation that are expensive and only extracts feature information of electrochemical reaction, a kind of voltammetric electronic tongue test system has been developed, and the system achieved response data acquisition, display and storage by USB6211 and LabVIEW. The test results show that the difference of pure milk and melamine-tainted milk with concentration of 160 mg/L can be discriminated by using principal component analysis, the system has better stability.

关 键 词：伏安型电子舌 LABVIEW 数据采集 人机界面 USB6211 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]