基于可视化阵列传感器的白酒鉴别系统设计及应用研究

基于可视化阵列传感器的白酒鉴别系统设计及应用研究重庆大学硕士学位论文学生姓名：尹猛猛指导教师：霍丹群教授专业：生物学学科门类：理学重庆大学生物工程学院二O一O年十月Design and Study of Liquor Identification System Based on Colorimetric Array SensorA Thesis Submitted to Chongqing Universityin Partial Fulfillment of the Requirement for theDegree of Master of EngineeringByYin MengmengSupervised by Prof. Huo DanqunMajor: BiologyCollege of Bioengineering ofChongqing University，Chongqing，ChinaOctober，2010摘要光谱、色谱等常规的检测方法，可以实现对白酒成分的定性、定量检测，是现在白酒检测的主要方法，但是这些方法通常需要光谱仪、色谱仪等大型仪器，所需费用高，而且很难实现实时、实地的在线检测。

白酒是个复杂的非均相体系，酒中的物质在贮存过程中形成不同大小、形状的胶体颗粒，常规检测方法仅能对酒体中的部分物质种类和含量给出检测结果，白酒中尚有许多微痕量物质由于仪器检测限的缘故无法检测出来。

人工嗅觉和味觉方法是近年来发展较为迅速的检测方法已被应用于多种食品检测，这些方法是利用不同传感器对待测样的交叉响应来实现对样品的检测分析，具有快速、高效的优点。

但电子鼻、电子舌采用的传感器通常不具有特异性，主要是靠吸附待测物质产生响应，在对白酒中微量成分的识别上依然存在不足，而且白酒中的大量乙醇会掩盖传感器对其他微量成分的响应，导致传统的电子鼻传感器对相似酒精度白酒的区分效果不好。

针对于现有白酒检测方法的不足，本文将可视化阵列传感器应用于白酒检测，设计加工了基于可视化阵列传感器的白酒鉴别系统，并将该系统应用于白酒鉴别。

本文完成的工作包括以下几个方面：①设计加工了一套基于可视化阵列传感器的白酒鉴别系统。

该系统包括白酒挥发装置、白酒气体检测装置、控制和数据采集处理系统。

②对白酒鉴别系统的管路进行了设计，整个系统共有三套管路：循环水管路、白酒气体循环管路、装置清洗管路。

不同的管路具有不同的功能，通过阀门来控制管路的开关。

③通过测试确定鉴别白酒的温度条件为30℃，并测试了白酒鉴别过程中系统内部温度的稳定性；通过对比传感器的响应曲线和不同时间的差谱图，确定鉴别平衡的反应时间为25分钟。

④对五大香型的典型代表酒样进行了鉴别检测，得到了不同香型白酒的指纹图谱。

利用聚类、主成分和判别分析等模式识别方法对获得的光谱变化数据分析，结果表明该系统可以将五大香型的酒样正确区分。

⑤对不同品质的浓香型白酒进行了鉴别检测，得到了不同品质浓香型白酒的指纹图谱。

利用方差分析方法对获得的光谱变化数据优化后，不同品质的浓香型白酒在聚类分析图和主成分散点图上可以正确归类和区分。

关键词：可视化阵列传感器，白酒鉴别系统，白酒气体检测装置，白酒挥发装置，香型ABSTRACTSpectroscopic method，chromatography and other conventional detection methods can be used for qualitative and quantitative analysis of liquor composition. But these methods usually require spectrometer，chromatography and other large equipment and can’t be applied in real-time field-line inspection. Liquor is a complex heterogeneous system. different sizes，shapes of the colloid particles are formed in liquor during process of storage. Only type and concentration of substances in liquor are given by conventional detection methods. interaction between constituents in liquor can not be analyzed，and there are many substances in liquor can not be detected because of less than detectability of instruments. Artificial smell and taste are two detection methods of most rapid development and have been applied to a variety of food testing. These methods detect and analyze samples based on different kind of sensors cross-response to samples，fast and high efficiency，can give comprehensive overall response to all substances in liquor. However，the sensors on electronic nose and electronic tongue mainly generate response by adsorption of samples instead of specificity，are still insufficient in identification of trace elements in liquor. And a lot of alcohol in wine can mask sensors response on other trace elements and lead to them not effective in distinction of liquor with similar alcohol.The colorimetric array sensor is used in liquor identification and liquor identification system based on colorimetric array sensor is designed and manufactured in this paper，and then the system is applied in liquor identification. The detailed works are listed as follows:① A liquor identification system based on colorimetric array sensor is designed and manufactured. This system includes liquor evaporation device，liquor detection device，control and data acquisition and processing system.②Pipelines in the system are designed. There are three sets of pipes: circular water pipeline，liqour gas circular pipeline and devices cleaned pipeline. Different lines have different functions，and are switched through the valve.③Identification temperature of 30 ℃is determined through testing by the system and stability of temperature during identification process is tested.After compared the sensor response curve and color change profiles at different time reaction time of 25minutes is determined.④Five kinds of most typical aroma liquor are detected and fingerprint pictures of liquors with different odor type are obtained. The analysis of data of spectral change got from detection by HCA、PCA and LDA of pattern recognition methods shows that this system can differentiate liquor of different odor types correctly..⑤Five different quality liquors are detected and fingerprint pictures of different quality liquor are obtained.The variance analysis is used for optimizing data of spectral change got from detection.And afer optimization different quality liquors can be correctly classified on HCA plot and PCA scatterdiagrams.Keywords:colorimetric array sensor，liquor identification system，liquor gas dete ction device，liquor evaporation device，odor type目录中文摘要 (I)英文摘要 (II)1 绪论 (1)1.1中国白酒简介 (1)1.2中国白酒的香味物质 (2)1.3酒类检测常用方法 (2)1.3.1 色谱法 (2)1.3.2 光谱法 (3)1.3.3 人工嗅觉和味觉传感器分析法 (6)1.4可视化阵列传感器分析法 (8)1.4.1可视化阵列传感器简介 (8)1.4.2 可视化阵列传感器的应用 (8)1.5本文的主要工作 (10)2 基于可视化阵列传感器的白酒鉴别系统的硬件设计 (11)2.1白酒鉴别系统总体设计 (11)2.1.1 白酒鉴别系统结构流程图 (11)2.1.2 白酒鉴别系统环境条件的控制 (13)2.2白酒挥发装置 (13)2.2.1 白酒挥发装置内腔设计 (13)2.2.2 白酒挥发装置外部整体设计 (14)2.3白酒气体检测装置 (16)2.3.1 白酒气体检测装置内腔设计 (16)2.3.2 白酒气体检测装置外部设计 (18)2.4检测系统管路设计 (20)2.5本章小结 (21)3 白酒鉴别系统的控制界面和系统测试 (23)3.1鉴别系统软件控制界面 (23)3.2鉴别检测的温度 (27)3.3鉴别检测过程中温度稳定性测试 (27)3.4鉴别检测时间测试 (28)3.5本章小结 (32)4 白酒鉴别系统在不同白酒鉴别中的应用 (34)4.1白酒鉴别系统在五大香型白酒的鉴别中的应用 (34)4.1.1 引言 (34)4.1.2 实验部分 (34)4.1.3 结果与讨论 (35)4.1.4 小结 (40)4.2白酒鉴别系统在不同品质的浓香型白酒鉴别中的应用 (40)4.2.1 引言 (40)4.2.2 实验部分 (40)4.2.3 结果与讨论 (43)4.2.4 小结 (49)4.3本章小结 (49)5 总结与展望 (50)5.1总结 (50)5.2展望 (50)致谢 (52)参考文献 (53)附录 (58)1 绪论1.1 中国白酒简介中国是世界上酿酒历史最长的国家，中国白酒有五千年以上的悠久历史。