落球法测定液体粘滞系数误差的研究  

Research on the error of measurement of liquid viscocity coefficient with the method of falling ball

作　　者：濮兴庭[1] 戚世瀚 王楠[2] 

机构地区：[1]南京林业大学理学院,江苏南京210037 [2]南京林业大学化学工程学院,江苏南京210037

出　　处：《实验室科学》2014年第1期22-24,共3页Laboratory Science

摘　　要：液体粘滞系数的测定是一项基础物理实验,影响此实验结果的因素较多,在实际操作中往往会存在误差较大的情况。通过改进实验仪器,对各个重要参数进行了多次规范的测量,并研究了各测量参数的相对误差传递,旨在找出减小误差的方法。The measurement of the liquid viscocity coefficient is a basic physical experiment. The rather large percent error in this experiment is due to some factors. To solve the problem, we do re- fined experiments and use the error propagation tormula to study the transmission of errors caused by the important factors. The aim of this study is to find a way to decrease the error.

关 键 词：粘滞系数 落球 实验误差 

分 类 号：O357.1[理学—流体力学]