CCD探测器在测量金属丝线膨胀系数中的应用  

Applications of CCD detector in measuring coefficient of linear expansion of wire

作　　者：张瑛[1] 李尧[2] 

机构地区：[1]东北师范大学物理系,长春130024 [2]北华大学物理系,吉林132001

出　　处：《物理实验》2002年第12期38-39,48,共3页Physics Experimentation

摘　　要：利用 CCD探测器分别测出常温和高温下金属丝衍射花样相邻暗纹的间距 ,用光学高温计测出加热时的温度值 ,从而求出线膨胀系数 .The distance between adjacent dark fringes of diffraction fringe of wire is determined at low and high temperature by CCD detector, the value of high temperature is measured by pyrophotometer, and the coefficient of linear expansion of wire is calculated.

关 键 词：CCD探测器 测量 金属丝 线膨胀系数 衍射条纹 电荷耦合器件 

分 类 号：O551.3[理学—热学与物质分子运动论] O436.[理学—物理]