基于自动检测技术的金属线膨胀系数测量实验优化  

Experimental Optimization Scheme of Metal Linear Expansion Coefficient Based on Automatic Detection Technology

作　　者：罗尧 陈尔达 张瀚宇 崔宇涵 向泽英[1] 罗浩[1] LUO Yao;CHEN Erda;ZHANG Hanyu;CUI Yuhan;XIANG Zeying;LUO Hao(College of Science,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]西南科技大学理学院,四川绵阳621010

出　　处：《大学物理实验》2021年第2期1-4,共4页Physical Experiment of College

基　　金：2020教育部大学物理教指委教改项目(DJZW202034XN);2020西南地区物理学术竞赛类教育教学改革研究项目(SWPTJG2012);西南科技大学本科教育教学改革与研究项目(19xn0039,19xn0041)。

摘　　要：在金属线膨胀系数实验过程中,发现被测金属棒进水口和出水口存在较大温差,并通过实际测量和理论分析找到了产生温差的原因。优化了系统测温方案,通过测温装置准确反馈金属棒各部位温度,来降低自动温控仪的仪器误差,同时测温装置将实验数据实时收集到云端服务器,通过可视化大屏全程展示,方便学生进行数据记录和分析。Through the process of doing the experiment,we found that the metal appeared in areas such as the outlet and inlet temperature difference.Through the measurement and theoretical analysis,we found a cause of temperature difference,and designed the optimization scheme of temperature measuring device.Through temperature measurement device feedback metal temperature accurately,we eliminated the instrument error of PID and environmental impact,and real-time temperature measuring device to experimental data collection to the cloud server.All experimental data in the form of visual screen will be displayed,so that the student to carry on the data analysis.

关 键 词：金属线膨胀系数 实验辅助系统 物联网 自动测温测距装置 快速兼容 

分 类 号：O4-34[理学—物理]