介绍一种利用分光计及自制盛液“三棱杯” ，采用最小偏向角法测量液体折射率的方法，并对该法进行了分析和讨。

The method to measure the refraction rate of liquids by using the least deflection angle is introduced and analyzed in this paper.

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文中讨论了利用添加高折射率薄层减小待测薄膜的最小厚度的可能性。

Possibility of decreasing the minimal measurable thickness of the film by insertion of a high index thin layer between the substrate and the film to be measured is discussed.

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借助高精度的测角仪器，就可测量棱镜的顶角和最小偏向角，从而得到光学玻璃的折射率。

With the help of a precise angle-measuring device, the apex Angle and the minimum deviation Angle of the prism can be measured; hence the optical refractive index of the glass.

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