The speckle phenomenon as introduction to optical metrology in educational laboratory

被引：0
|
作者：
da Silva, Emerson Rodrigo [1 ]
Muramatsu, Mikiya [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis, Lab Opt, BR-01498 Sao Paulo, SP, Brazil
来源：
REVISTA BRASILEIRA DE ENSINO DE FISICA | 2007年 / 29卷 / 02期
关键词：
speckle; metrology; interferometry;
D O I：
暂无
中图分类号：
G40 [教育学];
学科分类号：
040101 ; 120403 ;
摘要：
In this work we present the measurement of the linear coefficient of thermal dilatation of aluminium, using the obtained interferogram from Fourier transform over the sum of two displaced speckle images. The achieved result is in good agreement with tabled value and the required components have an accessible cost, turning the experiment an. interesting alternative for introduction of optical metrology in teaching laboratory or a project to be developed in experimental subjects.
引用
收藏
页码：283 / 286
页数：4
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