在理论分析的基础上 ,采用计算机图像采集技术 ,实时记录气泡的长大过程 ,用图像分析技术确定气泡边缘形状 ,建立了根据气泡图像测定表面扩展黏度的实验装置 .直接测量动表面张力随时间的变化 ,并通过动表面张力与气泡表面积变化率的关系 ,确定溶液的表面扩展黏度 .测定了十二烷基硫酸钠溶液的表面扩展黏度 ,并与不同表面变形速率下的文献值进行比较 ,说明了表面活性剂溶液的表面流变现象 . On the basis of theoretical analysis, computer image acquisition technology was used to record the growing process of bubbles in real time, and the bubble edge shape was determined by image analysis technology. The experimental apparatus for measuring the surface expansion viscosity based on bubble image was established. The surface extended viscosity of the solution was determined by the relationship between the dynamic surface tension and the rate of change of the surface area of ​​the bubbles.The surface extended viscosity of sodium dodecyl sulfate solution was determined and compared with the literature values ​​under different surface deformation rates, The surface rheology of the surfactant solution is illustrated.