液体粘滞系数测量原理分析及仪器研制  

Measurement Principle of Viscosity Coefficient and the Development of Measuring Instrument

作　　者：张潞英[1] 陈国杰[1] 周红仙[1] 伍贤栋[1] 

机构地区：[1]佛山科学技术学院物理实验教学中心,广东佛山528000

出　　处：《实验科学与技术》2011年第5期182-185,共4页Experiment Science and Technology

基　　金：广东省实验教学示范中心资助

摘　　要：介绍了1种基于斯托克斯法测量原理设计的新型液体粘滞系数测量仪。仪器采用激光光电计时装置,提高了计时的准确性,计时结果自动存入单片机,断电存储数据不丢失。设计了小球沿轴线投放装置和小球吸拾器及引导装置,实现了同一直径的小球只需1粒就可多次重复测量,避免了油筒内小球堆积的现象。A new instrument was developed for measuring viscosity coefficient based on Stokes measurement principle. A laser photoe lectric device was used for keeping time. By using the instrument, the accuracy of measuring time was improved and the single-chip computer saved the measurement results automatically. Those saved data would not be lost when the instrument is powered eft. A device for dropping the ball along the plumb axis and a guide arrangement were designed. It realized that only one ball with certain diame ter was needed for repeated measurement and the ball pile was avoided.

关 键 词：液体粘滞系数 斯托克斯公式 落球法 仪器研制 

分 类 号：TM930[电气工程—电力电子与电力传动]