基于物联网技术的二氧化碳检测仪开发  

Development of Carbon Dioxide Detector Based on Internet of Things Technology

作　　者：李德林[1] 胡启亮[1] 温晓东[1] 蔡锡松[1] 叶穗波 LI Delin;HU Qiliang;WEN Xiaodong;CAI Xisong;YE Suibo(Dongguan Institute,Guangdong Institute of Metrology,Dongguan 523343,China)

机构地区：[1]广东省计量科学研究院东莞计量院,广东东莞523343

出　　处：《仪表技术》2024年第6期1-3,19,共4页Instrumentation Technology

基　　金：东莞市社会发展科技项目(20231800938662);广东省计量科学研究院东莞计量院科研项目(2023KY001)。

摘　　要：为了有效解决校准培养箱中二氧化碳气体浓度因管线连接可能引发的气密性问题,研制了一种物联网二氧化碳气体检测仪。集成了低功耗蓝牙技术,能将传感器采集的测量数据实时传输至互联网微信小程序终端,为物联网仪器的开发提供了一种信的思路与方法。测试结果显示,所开发的二氧化碳检测仪的体积分数测量范围为0~20%,引用示值误差控制在其满量程的0.5%以内,满足相关校准规范对标准器的技术要求,为在二氧化碳培养箱中进行二氧化碳浓度校准时选择合适的标准器提供了可靠的解决方案。In order to effectively solve the air tightness problem caused by pipeline connection in calibrating the concentration of carbon dioxide gas in the incubator,an Internet of Things(IoT)carbon dioxide gas detector has been developed.Integrated with low-power Bluetooth technology,it can transmit the measurement data collected by the sensor to the Internet WeChat applet terminal in real time,providing a new idea and method for the development of IoT instruments.The test results show that the measurement range of the developed carbon dioxide gas mole fraction detector is 0-20%,and the maximum allowable error is controlled within 0.5%of its full range,which meets the technical requirements of relevant calibration specifications for standards.This provides a reliable solution for selecting suitable standards when calibrating carbon dioxide concentration in a carbon dioxide incubator.

关 键 词：物联网 二氧化碳 检测 标准器 

分 类 号：TH744[机械工程—光学工程] TN929.5[机械工程—仪器科学与技术]