张文杰 叶声华 安国振 王春和

（天津大学精密仪器系 天津 300072）

摘要：如何测量高聚物的动态特性，是化学工业中一个急需解决的问题。本文介绍了一种最新研制的凝胶动态几何尺寸测量系统。该系统通过投影扫描法获得凝胶瞬态特征尺寸的光学信息，采用固体摄像器件——CCD对光学图像进行光电变换，最后用计算机进行数据采集和处理，并打印出凝胶溶胀过程的动态特性曲线。它具有速度快和精度高的特点。

A Measuring Method for Gels Swelling Behavior

Zhang Wenjie Ye Shenghua An Guozhen Wang Chunhe(www.daowen.com)

（Dept.of Precision Instruments，Tianjin University，Tianjin30072）

Abstract：It is essential for the researchers on biochemical industry to identify the dynamic behavior of the polymer.A new measuring system for the dynamic dimension of gels is presented in this pa-per，which aquaires the transient size of gel based on the technique of optical projection.The sys-tem uses CCD and microcomputer for data collecting and processing.Furthermore，the dynamic characteristic of gel swelling has been drawn out.

Key Words：CCD gel optical projection dynamic dimension