摘要
在迈克尔逊干涉仪的实验光路中加入可移动的三角形容器,将待测液体介质装入容器中,通过移动三角形容器即可改变光束在介质中的光程,光程差的改变量与三角形容器插入光路中厚度成正相关,通过计算可以得到折射率的表达式,用最小二乘法拟合测量数据,计算斜率,代入表达式即可求得液体的折射率。
A movable triangular container with liquid was added to the experimental optical path of the Michelson interferometer.The optical path of the beam in the medium can be changed by moving the triangular container,and the change of optical path was positively correlated with the thickness of the triangle container inserted in the optical path.The slope and the refractive index of liquid can be calculated by fitting the measured data with the least square method.
引文
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