摘要
针对酒驾给公共交通带来的隐患,开发了一套便于检测乙醇浓度的乙醇气体检测系统。以硒粉末、硼氢化钠、钼酸钠晶体为原料,采用水热合成法制备了纳米MoSe_(2),采用滴涂法制备了MoSe_(2)薄膜传感器,测试了MoSe_(2)薄膜传感器在不同浓度下对乙醇的气敏性能。结果表明,MoSe_(2)薄膜传感器具有良好的乙醇气体敏感特性。开展相关硬件电路设计以及程序编写,通过基于MoSe_(2)纳米花结构的乙醇气体传感器检出信号,经模数转换后送MSP430系列微处理器,信号处理后可传送到计算机端实现数据实时显示和存储,同时通过蓝牙模块传输到手机端显示并报警。结合LabVIEW技术设计制作了乙醇气体检测装置,该装置具有操作简便、超低功耗、实用性强等优势。
In view of the hidden danger brought by drunk driving to public transportation,a set of ethanol gas detection system which is convenient to detect the concentration of ethanol was developed.Selenium powder,sodium boron hydride,sodium molybdate crystals are used as raw materials,a nano MoSe_(2) hot water is prepared by using synthetic methods,the dispensing film sensor is used to prepare MoSe_(2),MoSe_(2) film sensor was tested at different concentrations of ethanol of gas sensing performance.The results show that the MoSe_(2) thin film sensor has good ethanol gas sensitivity.By carrying out related hardware circuit design and programming,the signal is detected by the ethanol gas sensor based on the nanoflower structure of MoSe_(2),and then sent to the MSP430 series microprocessor through the analog-to-digital conversion.After signal processing,it can be transmitted to the computer to realize real-time display and storage of data.At the same time,it can be transmitted to the mobile phone through the Bluetooth module for displaying and alarming.MSP430 series microprocessor and LabVIEW technology are used to produce ethanol gas detection device.The device has the advantages of simple operation,ultralow power consumption and strong practicability.
作者
周兰娟
杜宸
张冬至
ZHOU Lanjuan;DU Chen;ZHANG Dongzhi(College of Control Science and Engineering,China University of Petroleum(East China),Qingdao 266580,Shandong,China)
出处
《实验室研究与探索》
CAS
北大核心
2021年第9期87-90,共4页
Research and Exploration In Laboratory
基金
山东省教学改革研究项目(P2020011)
中国石油大学(华东)2020年教学改革项目(ZY-202026,SJ-202026)。
关键词
水热合成
薄膜传感器
检测装置
hydrothermal synthesis
thin film sensor
detection device
