基于USB6211和LabVIEW伏安型电子舌测试系统的设计与实现

发布时间：2018-02-23 07:10

本文关键词： 伏安型电子舌 LabVIEW 数据采集人机界面 USB　出处：《天津农学院学报》2016年04期 　论文类型：期刊论文

【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。
[Abstract]:Volt-ampere electronic tongue is a new type of testing system for detecting liquid material. It mainly uses the method of interactive sensitive electrode array and multivariable data analysis to qualitatively or quantitatively analyze the object under test. Sensor array, potentiostatic circuit, data acquisition circuit and multivariable data analysis software. The size of the response signal of the working electrode or the shape of the response signal diagram are collected and analyzed. In this paper, the electrochemical workstation is expensive and can only extract the characteristic information of the electrochemical reaction in voltammetry. A volt-ampere electronic tongue detection system is developed and designed. The data acquisition card USB6211 and LabVIEW software are used to generate the excitation signal and collect the volt-ampere response data. Display and storage. The test data of pure milk and doped milk with concentration of 160 mg/L melamine were analyzed by principal component analysis (PCA). The results can clearly distinguish the samples of pure milk and adulterated milk. The whole system has good stability.
【作者单位】：天津农学院工程技术学院;天津大学电气与自动化工程学院;
【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)
【分类号】：TP274

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