金属热胀系数自动测量仪的研制  

Development of Automatic Measurement Instrument for Metallic Thermal Expansion Coeffi cient

作　　者：刘存海[1] 刘芬芬[1] 

机构地区：[1]海军航空工程学院

出　　处：《中国教育技术装备》2015年第10期38-40,共3页China Educational Technology & Equipment

摘　　要：将迈克尔逊干涉仪的精确测量和传统金属线膨胀系数的测量方法相结合,研制一种金属热胀系数自动测量仪,被测金属样品被加热后会发生长度的变化,从带动镜面产生微小移动,进而引起迈克尔逊光路中两束光的光程差的改变,通过干涉条纹自动计数系统记录温度变化时干涉条纹的变化数量,以实现对金属热胀系数的自动测量。An automatic measurement instrument for the metallic thermal expansion coefficient is developed based on the combination of the traditional measuring and Michelson Interferometer. The length of the metal varies, the mirror moves tiny and the length difference of two lights when the metal is heated. The metallic thermal expansion coefficient is measured automatically with a Michelson Interference fi＇inges automatic counter for different temperature.

关 键 词：热胀系数 迈克尔逊干涉仪 自动测量 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]