牛顿环干涉法测量液体折射率的实验研究

摘要

Using the Newton ring interference method to measure the water,ethanol,and the refractive index of different concentrations of glucose solution,the experimental results accord well with the theoretical value.It is found that Newton ring with a larger curvature radius can effectively reduce the difficulty of counting interfer-ence fringe.%利用牛顿环干涉法测量了水、乙醇和不同浓度的葡萄糖溶液的折射率，其实验结果与理论值符合的较好。实验过程中发现选用更大曲率半径的牛顿环能够有效降低干涉条纹的计数难度。