用计算机辅助测量液体的粘滞系数  

Assisting in Measuring Viscosity Coefficient by Computer

作　　者：吴斌[1] 王颖[1] 田冰涛[1] 黄原点[1] 陈东生[1] 

机构地区：[1]上海电力学院,上海200090

出　　处：《大学物理实验》2011年第4期63-65,共3页Physical Experiment of College

基　　金：上海市大学生科研创新基金资助(A84192)

摘　　要：主要说明用自制光电门配合计算机辅助测量液体粘滞系数的原理和方法,当小球挡住光电门的光路时,会使光敏管产生一个电脉冲,可以利用计算机声卡配合audition软件捕捉这个脉冲,从而实现小球下落时间的测量,提高实验的精确度。This article is to describe the principles and methods of how to use the computer to assist in measuring the liquid viscosity coefficient with a self-made photo gate.Blocking optical light path,the ball makes the photodiode generate an electrical pulse.The pulse,which can measure the ball falling time and increase accuracy of the experiment,can be captured by the audition with the sound card of computer.

关 键 词：光电门 液体粘滞系数 计算机 Audition软件 

分 类 号：O411.2[理学—理论物理]