用分光计测量棱镜折射率几种方法的探讨

折射率是物质的基本特性参量。分光计是测量角度的一种精密仪器,利用分光计还可以通过最小偏向角法、掠入射法、垂直入射法、等顶角入射法等测量棱镜折射率。本文分析比较这四种测量方法的优缺点,得出最佳实验方案,有效提高测量棱镜折射率的精度,减小实验误差。

Refractive index is the basic characteristic of the material parameters. Spectrometer is a precision in- strument which can measure angles. We can also use the minimum deviation angle, grazing incidence, vertical inci- dence, apex Angle incidence methods to measure the refractive index of the prism. In this paper, we compare the advantages and disadvantages of these four methods, and we conclude the best experiment method to effectively im- prove the accuracy of measuring the refractive index of prism as well as to reduce the experimental error,