基于多激光光电门的液体黏度测量

Measurement of liquid viscosity based on the multiple laser photoelectric door

本文设计了一种多激光光电门液体黏度测定仪.采用自制的铅锤校准系统和落球定位漏斗,使小球沿玻璃圆筒中心轴线下落,利用四组激光光电门计时,通过实验寻找小球匀速下落区间,可在一次落球实验中获得4组实验数据.新方法消除了传统落球法实验的弊端,提高了实验测量的效率和准确度.

A instrument of measuring the liquid viscosity is designed based on the multiple laser photoelectric door.In this paper,the self-resembled calibration system with plumb and a funnel for point location is adopted to ensure the ball falling along the central axis of the glass cylinder.In addition,four sets of photoelectric door are used to measure the time.This method makes it possible to accurately find the interval of uniform falling and obtain four groups of experimental data in a single experiment.The new measuring instrument eliminates the disadvantages of the traditional falling-sphere method and improves the efficiency and accuracy of experimental measurement.