相图绘制中二次曲线拟合的改进

Quadratic curve fitting in phase diagram drawing

在使用计算机绘制相图的过程中,需要依据实验数据对相图中的曲线进行拟合。本文分析了水盐体系相图中二次曲线拟合的特点,并提出使用修改后的二次拟合方法对相图中曲线进行拟合的方法,在绘制相图中得到了较好的效果。

During phase diagram drawing by computer, curve fitting of experimental date is needed. Some feature in phase diagram drawing is analyzes and modified quadratic fitting method is used to fit the curves. The method is proved to be effective.