一种基于单缝衍射的线膨胀系数测定装置  

A Kind of Device of Measuring Linear Expansion Coefficient on the Basis of Single Slit Diffraction

作　　者：盛爱兰[1] 

机构地区：[1]山东理工大学,山东淄博255000

出　　处：《大学物理实验》2013年第1期59-61,共3页Physical Experiment of College

摘　　要：本文根据夫琅和费单缝衍射能够测量狭缝宽度的原理,设计了一种金属线膨胀系数的测定装置,并利用温控仪进行温度的测量控制。实验证明,本文设计的装置操作比较简单,准确度较高。In this paper,the principle that Fraunhofer single slit diffraction can measure the width of a slit is applied,and a kind of device of measuring linear expansion coefficient is designed.The thermocontroller is used to measure and control temperature.It has been proved the experiment can be done more easily with high measurement accuracy.

关 键 词：线膨胀系数 测定装置 单缝衍射 温控仪 

分 类 号：O551.3[理学—热学与物质分子运动论]