光栅衍射实验教学中的体会  

THE PERSPECTIVES OF GRATING DIFFRACTION EXPERIMENT TEACHING

作　　者：吕佩伟[1] 马宋设[1] 马靖[1] 

机构地区：[1]福州大学物理与信息工程学院,福建福州350116

出　　处：《物理与工程》2014年第4期43-46,共4页Physics and Engineering

基　　金：福州大学科技发展基金(2013-XY-30)

摘　　要：文中首先介绍了光栅衍射实验教学的难点以及实验的调节目标.之后依次分析了学生在光栅衍射实验调节中经常遇到的问题,例如:分光计的粗调调节不到位;望远镜目镜视场中观察不到由双面平行平面镜反射回来的绿色"+"字叉丝像;平行光管的光轴没有与望远镜光轴共轴;望远镜目镜视场中观察不到由光栅面反射回来的绿色"+"字叉丝像.最后,结合实际的教学经验,给出了各个问题相应的解决方法,对教学实践具有一定的参考价值.In this paper, at first we introduced the difficulties and the adjusting target of the grating diffraction experiment teaching. Secondly, we analyzed the frequently asked problems about the equipment adjusting faced by the students in the grating diffraction experiment, such as the coarse adjustment of spectrometer was not adjusted in place, the green ＂＋＂ cross image reflected by the double parallel plane mirror was not observed in the eyepiece of tele- scope, the collimator axis and the telescope axis were not in the same optic axis, and the green ＂＋＂ cross image reflected by the grating surface was not observed in the eyepiece of tele- scope. At last, we gave the corresponding solutions to these problem combined with the actual teaching experience, which has certain reference value in the teaching practice.

关 键 词：分光计 光栅 实验 教学实践 

分 类 号：O436.1-4[机械工程—光学工程] G642[理学—光学]