空气折射率的测量及数据处理方法研究

Measurement of Refractive Index of Air and Data Processing Study

计算测量值的标准偏差是光学设计性实验的重要内容.以迈克尔逊干涉仪测量空气折射率的实验数据为基础,对使用最小二乘法估计实验参数的标准差和采用Origin软件线性拟合实验数据进行比较.结果表明,两者结果完全相符.此外,Origin软件在处理实验数据和绘制图表方面具有方便、高效的优势,且采用Origin软件进行实验教学,既能培养学生的综合应用能力,又能激发学生的实验兴趣.

It is important to calculate the standard deviation of measured values in optical designing experiments. Based on the experimental data of refractive index of air by the MichelsonJ s interferometer, the comparison was made between the standard deviation of the experiment parameter by the least square and the experiment data by the linear fitting by the Origin Software. Both of them got the same results. In addi-tion, Origin Software shows the advantages of convenience and high efficiency in process of analyzing the experimental data and making dia-gram. This method could not only train students^integrative application ability, but stimulate their interest in experiment simultaneously.