Electrical resistance tomography for characterisation of physical stability in liquid compositions
Electrical resistance tomography for characterisation of physical stability in liquid compositions
复制标题
用于表征液体组合物物理稳定性的电阻断层扫描
DOI：
10.1016/j.cej.2009.10.054
复制
发表时间：
2010
影响因子：
15.1
通讯作者：
T. York
中科院分区：
文献类型：
--
作者：
A. Kowalski;J. L. Davidson;M. Flanagan;T. York
本文描述了研究使用电断层扫描对选定产品的物理稳定性进行早期表征的可行性的实验。曼彻斯特 LCT 断层扫描仪已应用于 1 升容器中托管的 8 平面传感器。测量时间长达 76 小时。断层扫描测量和重建图像与与实验相关的视觉观察结果一致，这些实验很容易生成明显可见的“分离层”。已对观察到的测量电压的昼夜偏移进行了研究，并将其与温度变化相关。后来的实验是在温度受控的环境中进行的。已从所选像素的重建图像中提取了电导率变化。这些揭示了在视觉上可辨别的效果之前表明不稳定的行为。
The paper describes experiments to investigate the feasibility of using electrical tomography for early characterisation of physical stability in selected products. The Manchester LCT tomograph has been applied to an 8-plane sensor hosted in a 1-l vessel. Measurements have been taken over periods up to 76h. Tomographic measurements and reconstructed images are consistent with visual observations associated with experiments that readily generate a distinct visible ‘separated layer’. Observed diurnal excursions in the measured voltages have been investigated and related to changes in temperature. Later experiments have been performed in a temperature controlled environment. Conductivity changes have been extracted from the reconstructed images for selected pixels. These reveal behaviour which is indicative of instability prior to visually discernible effects.