摘要
根据计量光栅的特点 ,可以利用双光栅效应测量透镜焦距 .本文简述了利用双光栅Lau效应测量透镜焦距的实验原理、实验装置及测量方法 。
Based on Lau effect in double grating, the focal distance of lens is measured. In this paper, the experiment principle, device and method are introduced. The uncertainty of results is given.
出处
《物理实验》
北大核心
2004年第6期13-15,共3页
Physics Experimentation
关键词
Lau效应
光栅周期
透镜焦距
条纹间距
Lau effect
period of grating
focal distance of lens
fringes spacing
