用等厚干涉测液体的折射率  被引量:11

Measuring the refractive index of liquids based onthe interference of equal thickness

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作  者:张瑛[1] 卢杰[2] 杨枫[1] 

机构地区:[1]东北师范大学物理学院,吉林长春130024 [2]吉林大学物理学院,吉林长春130021

出  处:《大学物理》2005年第2期44-45,共2页College Physics

摘  要:在等厚干涉的实验中,加入了用劈尖干涉对比法测液体折射率的内容,在不改变劈尖膜的条件下,同时测得空气膜和液体膜的干涉条纹宽度,从而可方便地求出液体的折射率,也使得等厚干涉的实验内容更加丰富和充实.The refractive index of liquids is obtained by means of the wedge film interference in the experiment of the interference of equal thickness. Without changing the slope angle of the wedge film, the width of the interference fringe is measured when the wedge film is filled with some kind of liquids and air respectively. By comparing the two results, the refractive index of the liquid is easily calculated. The design of this experiment enriched the content of the interference of equal thickness and is suitable to the establishment of elective course. 

关 键 词:劈尖 等厚干涉 折射率 

分 类 号:O430.1[机械工程—光学工程]

 

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