基于Matlab的劈尖干涉仿真

Simulation of wedge interference based on Matlab

根据等厚干涉的基本理论,利用Matlab平台编程进行仿真,模拟劈尖干涉实验在不同参数条件下的光强分布情况。并用Matlab自带的Peaks函数模拟利用劈尖干涉对平面玻璃表面进行缺陷检测的干涉条纹。仿真所得到的干涉图像细致逼真,并且能够动态地反映出干涉条纹随参数的改变而发生变化的过程,使得物理规律形象直观。Matlab模拟出的干涉图像与实验结果非常吻合,还可以灵活地调节参数,大大扩展了劈尖干涉问题的研究途径与方法,有助于学生更加深刻地理解物理光学的现象和规律,也为光学的理论教学和实验方式提供了便利。

Based on the fundamental theory of equal thickness interference,the light intensity distribution at different parameters in the wedge interference experiments is simulated by means of Matlab platform programming. The interference fringes conducting the defect detection of plain glass surface by wedge interference are simulated with Peaks function of Matlab. The interference image obtained from simulation is meticulous and realistic,and can dynamically reflect the changing process of interference fringes with the change of parameters,which makes the physics rules visual and intuitive. The interference image simulated by Matlab is identical with experimental result. The parameters can be set flexibly,which greatly extends the research approach and method of wedge interference subject,is helpful for students to profoundly understand the phenomenon and rules of physical optics,and provides the convenience for optical theory teaching and experimental mode selection.