大学物理实验激光衍射教学仪器的改进  

Improvement on Laser Diffraction Teaching Instrument in University Physics Experiment

作　　者：赵培刚[1] 李冬萍[1] 姜永清[1] Zhao Peigang;Li Dongping;Jiang Yongqing(Physics Experiment Teaching Center,Ocean University of China,Qingdao,Shandong 266003)

机构地区：[1]中国海洋大学物理实验教学中心,山东青岛266000

出　　处：《物理通报》2022年第2期34-37,共4页Physics Bulletin

基　　金：中央高校基本科研业务费专项:中国海洋大学实验室基金项目,项目编号:202051014。

摘　　要：针对大学物理基础光学实验中衍射光强分布测量中存在的问题,设计了用单片机控制步进电机带动光探头移动,将单片机与光强检测器结合,通过电路改进、程序编写等工作,成功改进了激光衍射实验仪,有效提高激光衍射实验光强测量精度.The inaccuracy involved in measuring the intensity distribution of light induced by slit diffraction has long been a challenge for Physics experiments in university teaching courses.In this study,we combine a single chip controller with a magnetic stepping motor to drive an optical probe for the laser diffractometer module of our undergraduate experimental physics course.After upgrading and following a simple calibrating procedure for the circuit,this single-chip guided light intensity detector shows great promise to improve measurement precision in this and related applications.

关 键 词：物理实验 激光衍射 单片机 光强分布 

分 类 号：O436.1-33[机械工程—光学工程]