在介绍环己烷/PDMS体系中起泡脱挥气泡场的激光全息图记录与再现的基础上,对其全息图通过计算机进行了VPPSA颗粒分析和数据处理。讨论了液体深度、操作真空度和环己烷初始浓度对数均气泡直径的影响。结果表明,数均气泡直径随液体高度增加而增加,随操作真空度和环己烷初始浓度的增加而稍增大。液体深度是其主要影响因素。对测量误差的影响因素进行了讨论。

On the basis of introduction to the hologram record and reconstruction, the analysis of particle hologram is carried out for the bubble fields of foam-devolatilzation (foam-DV) in cyclohexane/PDMS system. The effects of the operating vacuum, the initial cyclohexane concentration and the liquid height on the number-average bubble sizes are discussed emphatically. The results show that the number-average bubble sizes increase linearly with increasing liquid height, the operating vacuum and the initial cyclohexane concentration, but the liquid height is a key factor. The factors affecting the measurement error are also discussed.