一种简便快速测量折射率的新方法研究

利用分光计、钠光为光源、自主设计的等腰梯形槽为液体槽,搭建了一种测量液体折射率的平台,利用该平台简易快速确定折射角,并基于Python软件编程得出其折射率。利用该方法测量了去离子水和不同浓度的NaCl溶液的折射率。实验结果表明:溶液折射率相对误差均远远小于5%,该方法实验操作简单、计算快捷、成本低、精确度高、效率高,具有较强的可操作性和应用价值,是测量液体折射率可推广的一种新方法。

A New Method for Simple and Rapid Measurement of Refractive Index

Using the spectrometer,sodium light as the light source,and the self-designed isosceles trapezoidal groove as the liquid trough,a platform for measuring the refractive index of the liquid is built.The refraction angle is easily and quickly determined by the platform,and the refractive index is obtained by programming based on Python software.The refractive index of deionized water and different concentrations of NaCl solution was measured by this method.The experimental results show that the relative error of the refractive index of the solution is far less than 5%.The method is simple in operation,fast in calculation,low in cost,high in accuracy,high in efficiency,and has strong operability and application value.It is measuring liquid refraction.It is a new method to measure the refractive index of liquid.