动态双光栅测量金属热膨胀系数  

Measurement of thermal expansion coefficient of metals by dynamic double grating

作　　者：杜佩之[1] 高熠鑫[1] 高畅[1] 周进[1] 

机构地区：[1]南京大学物理学院,江苏南京210023

出　　处：《物理实验》2013年第8期33-36,共4页Physics Experimentation

摘　　要：在双光栅测量音叉微小振幅的理论基础上,利用静光栅纵向位移对金属热膨胀系数进行测量.本文给出了动态双光栅测量金属热膨胀系数的理论拓展与实验结果.Based on the theory of measuring the tiny amplitude of a vibrating tuning fork, the thermal expansion coefficient of metals was measured using the longitudinal displacement of static grating. The development of the theory and the experimental results were shown.

关 键 词：双光栅 微小位移测量 金属热膨胀系数 纵向位移 

分 类 号：O436.3[机械工程—光学工程] O343.6[理学—光学]