核磁共振成像技术在液-固-液界面接触角测量中的应用  

Application of MRI to measurements of liquid-solid-liquid contact angles

作　　者：沈元[1] 俞熹[1] 

机构地区：[1]复旦大学物理系,上海200433

出　　处：《大学物理》2010年第5期53-57,共5页College Physics

基　　金：国家基础科学人才培养基金资助(J0730310)

摘　　要：介绍了利用核磁共振成像的办法获得一般光学方法难以得到的水-破璃-油界面、水-玻璃-苯界面影像的实验工作,并利用得到的图像拟合了其界面接触角的值.实验中首次将核磁共振断面成像的办法应用到接触角影像分析中去,并且作了从气-固-液接触角测量到液-固-液接触角测量的有益尝试.This paper describes the measurements of the contact angles of wate-glass-oil and water-glass-benzene which is hard with optical ways with nuclear magnetic resonance imaging technique. The result is curve-fitted and the angles are calculated by the Matlab. This is the first time that the measurement of contact angles with MRI is introduced, it may lead to further applications of liquid-solid-liquid and gas-solid-liquid contact angles measurements.

关 键 词：核磁共振 液-固-液 加权成像 接触角 

分 类 号：O59[理学—应用物理]