落球法测量液体黏度系数的创新

Innovation of Measuring Liquid Viscosity Coefficient by Falling Ball Method

为了解决传统落球法依赖修正系数的弊端,采取了利用线性外推来满足无限广延条件的测量方法。将原来由一根直径固定的单管组成的下落装置,变成了由三个不同直径的单管组合而成,这一改动同时解决了传统多管法需要重复多次相同实验步骤耗时烦琐的问题。并且通过实验验证表明,创新后实验仪器能够在规避修正系数的同时,到达实验所需测量精度。

In order to solve the shortcomings of the traditional falling ball method relying on the correction coefficient,we have adopted a linear extrapolation method to meet the conditions of infinite extension.The original drop device composed of a single tube with a fixed diameter has been changed to a combination of three single tubes with different diameters.This change also solves the traditional multitube method that requires repeating the same experimental steps multiple times.And the experimental verification shows that the experimental instruments can achieve the required measurement accuracy while avoiding the correction coefficient after innovation.