微悬臂梁传感系统在乙醇挥发检测中的应用  

Application of microcantilever sensor system in ethanol volatilization detection

作　　者：黄赛鹏 薛长国[1,2] 梅永松 胡业林[1] HUANG Saipeng;XUE Changguo;MEI Yongsong;HU Yelin(Institute of Coal Mine Electrical Automation,Anhui University of Science and Technology,Huainan 232001,China;School of Materials Science and Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学煤矿电气自动化研究所,安徽淮南232001 [2]安徽理工大学材料科学与工程学院,安徽淮南232001

出　　处：《传感器与微系统》2020年第8期158-160,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(11872001);安徽省自然科学杰出青年科学基金资助项目(1808085J30);安徽省留学回国人员创新项目。

摘　　要：针对乙醇挥发性不易检测的问题,建立了一种基于微悬臂梁传感器的乙醇自挥发检测系统,采用光杠杆检测方法研究了乙醇自挥发对微悬臂梁挠度的影响。光电位置敏感探测器接收响应信号,在LabVIEW上实现了数据的处理和可视化功能,对乙醇体积与相应挥发时间的关系进行了曲线拟合,估算了短挥发时间下乙醇的体积量。实验结果表明:乙醇自挥发使微悬臂梁偏转位移逐渐减小,最终趋于恒定。乙醇挥发时间与微梁响应的最大偏转位移、乙醇体积量正相关。Aiming at the problem that the volatility of ethanol is not easy to detect,an ethanol self-evaporation detection system based on microcantilever sensor is established. The effect of ethanol self-evaporation on deflection of microcantilever is studied by optical lever detection method. The photoelectric position sensitive detector receives response signal,data processing and visualization function in Lab VIEW is realized,the relationship between ethanol volume and the corresponding evaporation time is fitted,and the volume of ethanol in short evaporation time is estimated. The experimental results show that the self-evaporation of ethanol makes the deflection displacement of the microcantilever gradually decrease and eventually tends to be constant. The evaporation time of ethanol is positively correlated with the maximum deflection displacement of the microbeam response and the volume of ethanol.

关 键 词：乙醇检测 光杠杆 微悬臂梁 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]