杨氏双缝干涉实验的改进  

The Improvement of the Young's Double Seam Interference Experiment

作　　者：彭小兰[1] 王红成[1] 刘敏霞[1] 

机构地区：[1]东莞理工学院,广东东莞523808

出　　处：《广东技术师范学院学报》2012年第6期6-9,共4页Journal of Guangdong Polytechnic Normal University

基　　金：东莞理工学院教育教学改革与研究资助项目(201203;201005)

摘　　要：传统的杨氏双缝干涉测量光波波长实验是采用钠灯作为光源.光通过单缝衍射后照射到双缝上,并通过测微目镜测量条纹宽度,双缝间距则直接采用读数显微镜进行测量.但这种方法观察干涉现象需在较暗环境中进行,且测量结果和理论值差别较大.因此改用激光光源,直接在光屏上观察读数,并且改进测量双缝宽度的方法,测量误差就会大大降低.The traditional Young's double-slit interference experiment uses a sodium lamp as the light source to measure the light wavelength.The light illuminates a double-slit board after passing an adjustable single slit.A micrometer eyepiece is used to measure the stripe spacing.The spacing between the double slits is measured by a readout microscope.But a dark environment is necessary to observe the interference phenomena,and there is large error between the measurement and the theoretical results.this paper uses a laser as light source,and the phenomena can be observed on the screen directly.The measurement method of the double-slit width is also improved.After these improvements,the measurement error can be greatly reduced.

关 键 词：杨氏双缝干涉实验 实验改进 波长测量 

分 类 号：O436.1[机械工程—光学工程]