迈克尔逊干涉仪自动测量系统设计与实现

Design and Implementation of Automatic Measurement System for Michelson Interferometer

在迈克尔逊干涉仪测量氦氖激光波长实验中,若要提高干涉条纹亮度,需要降低环境光强;此外,从仪器动镜位置读数不够便捷,并且连续计数上百个干涉条纹个数容易导致眼疲劳,带入计数误差。为了解决这些问题,研制了迈克尔逊干涉仪自动测量系统,它实现了自动计数干涉条纹个数和自动计算动镜位移,并将计算结果动态显示在液晶屏上。

In the experiment of measuring He-Ne laser wavelength with Michelson interferometer,in order to improve the brightness of interference fringes,the ambient light intensity need to be reduced;In addition,reading number from the position of the instrument's moving mirror is not convenient enough,and continuously counting hundreds of interference fringes can easily lead to eye fatigue and lead to counting errors.In order to solve these problems,an automatic measurement system of Michelson interferometer is developed,which can automatically count the number of interference fringes and automatically calculate the displacement of moving mirror,and dynamically display the calculation results on the LCD screen.