基于计算机拟合的三棱镜色散率测量

摘要

利用分光计对三棱镜顶角和汞光灯、钠光灯的不同波长光线的最小偏向角进行测量，并且计算不同波长光线的折射率，再利用计算机编程拟合实验曲线，得到关于三棱镜的色散曲线，最后求导得到色散率函数。%Using the spectrometer to measure prism’ s vertex angle and minimum deviation angle of different wavelength of light from mercury lamp light and natrium lamp light. Calculating the dispersion rate of different wavelength of light. Then using the computer programming to fit the experimental curves,get the prism disper-sion curve and finally take a derivative with respect to the prism dispersion curve.