基于迈克尔逊干涉的金属线胀系数测量装置

Measuring Device of Metal Linear Expansion Coefficient Based on Michelson Interferometer

我们设计了一种基于迈克尔逊干涉的金属线胀系数测量装置。此装置中金属棒长度的微小变化可通过干涉条纹的吞吐直观观察,可操作性强,更重要的是大大提高了金属线胀系数测量的精确度,有利于增强学生对物理实验的学习兴趣,培养学生的创新能力。

We design a new experimental instrument based on the Michelson interferometer and the metal linear expansion coefficient measuring device.The instrument can visualize the small change process of metal rod length through the movement of the interference stripes.It has strong operability,and more importantly,it greatly improves the accuracy of measurement of metal linear expansion coefficient,which is conducive to enhancing students'learning interest in physics experiment and cultivating students'innovation ability.