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.
关键词
迈克尔逊干涉仪/金属线胀系数/光的干涉
Key words
Michelson interferometer/metal linear expansion coefficient/interference of light
维普
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