基于改进的迈克尔逊干涉仪对热变形特性的研究  

The Study of Thermal Deformation Based on Modified Michelson Interferometer

作　　者：谢钧 沈伦洋 查一昆 XIE Jun;SHEN Lunyang;ZHA Yikun(School of science,Jiujiang university,Jiangxi Province Key Lab of Microstructure Function Material,Jiiying University,Jiujiang,Jiangxi 332005,China)

机构地区：[1]九江学院理学院/江西省微结构功能材料重点实验室,江西九江332005

出　　处：《九江学院学报（自然科学版）》2022年第2期74-77,共4页Journal of Jiujiang University：Natural Science Edition

摘　　要：在建筑工程、机械装配和电子工业等部门的实际作业中,金属材料热膨胀会产生极大的影响,对热膨胀微小变化量的精确测量是非常重要的.该实验对迈克尔逊干涉仪进行适当的改进,使整套装置具有直接和间接测量热膨胀微小变化量的能力.通过手机拍摄观察屏上干涉圆环的变化过程,将视频图像输入基于MATLAB自主编写的计算分析程序中,在运行程序之后得到准确的干涉圆环变化量,从而反推出金属棒在这一过程中产生的微小变化量.这一实验扩展了迈克尔逊干涉仪在测量热膨胀微小变化量方面的应用,简化了数据处理过程,并且在教学科研领域均有一定的应用前景。In the actual operation of construction engineering, mechanical assembly, electronic industry and other departments, the thermal expansion of metal materials would have a great impact. It was very important to accurately measure the small change of thermal expansion.In this experiment, the Michelson interferometer was properly improved, the whole device had the ability to directly and indirectly measure the small change of thermal expansion. Observe the change process of interference ring on the screen through mobile phone shooting, input the video image into the calculation and analysis program independently written based on MATLAB, after running the program, the accurate variation of the interference ring was obtained, so as to deduce the small change of the metal rod in this process. This experiment expanded the application of Michelson interferometer in measuring small changes in thermal expansion, simplified data processing and had a certain application prospect in the field of teaching and scientific research.

关 键 词：迈克尔逊干涉仪 热变形 干涉环 杠杆 比例系数 

分 类 号：O4-34[理学—物理]