用曲线拟合方法测量空气阻尼常量  

Curve fitting method to measure the damping constant of air

作　　者：李向亭[1] 黄一及[1] 邬元杰[1] 俞嘉隆[1] 乔卫平[1] 

机构地区：[1]上海交通大学物理实验中心,上海200240

出　　处：《物理实验》2007年第4期40-41,共2页Physics Experimentation

摘　　要：以物体在气垫导轨上做一维阻尼运动为例,用曲线拟合方法推导出空气的阻尼常量的计算公式,利用与计算机相连的数码照像机采集数据,画出拟合曲线,从而得出了空气的阻尼常量.Taking the example of the one dimensional damping motion of an object on air track, using curve fitting method and digital camera connected to a computer to collect data, fitting curve can be displayed, and the damping constant of air can be obtained.

关 键 词：一维阻尼运动 曲线拟合方法 阻尼常量 

分 类 号：O313.1[理学—一般力学与力学基础]