有机玻璃中溶剂迁移现象的钠光测试方法

提出一种基于钠光和斐索干涉原理、采用数字图像处理技术测量高聚物体系中溶剂迁移现象的方法。重点介绍了图像处理的步骤和方法、用K-L变换对细化条纹进行条纹间距的计算。结果表明，用该方法所开发的测试系统有良好的人机对话界面，能方便、准确地测出干涉条纹的间距值。通过测试丙酮和乙醇在有机玻璃配制的聚合物膜中的迁移过程，得出了相应的干涉条纹变化规律，从而得到两种溶剂迁移过程中高聚物折射率的变化规律。结果表明，在迁移的过程中，随着时间的推移，条纹间距变小，而且变化程度逐渐减小；在同样的条件下，不同物质的迁移速度有很大的差异。

Sodium Light Testing Method on Organic Glass Impregnant Transference Phenomenon

A method of measuring the transference phenomenon of solvent in high polymers based on sodium light and Feisuo interference principle with digital image processing technology is proposed. The steps and method of the image processing are introduced in detail. The fringe distance after thinning is calculated by K-L transform. The results show that the measurement system with favorable interface, developed by the method could get the fringe distance precisely and quickly. Through measuring the fringe distance change in the polymer of acetone and ethanol and the change rule corresponding to fringe distance, the change rule of refractive index in the transference is obtained. The results show that the fringe distance with time is getting smaller and the change degree is also getting smaller. The transference speed of different materials in high polymers is different under the same condition.