白噪声技术在液体流变特性测试中的应用

The use of white noise in measuring the rheological performance of fluid

本文概述了利用白噪声测量液体流变特性的装置及原理。提出了微珠振荡流变仪以白噪声为输入信号,在小振幅振荡下复粘度的计算方法,并对信号输入和检测电路作了介绍。最后给出了实验结果。

The system and principle of using white noise to measure the theological performance of fluid is outlined in this paper. A perferred method of calculating the complex viscosity measured by white noise microballon oscillatory rheometer in small amplitude oscillation is suggested here, and the signalinputting and detecting circuit is introduced. Finally, experimental results are given. A new research and measuring method for rheology is herely presented.