计算机辅助标定与绘制电子衍射图

COMPUTER-AIDED INDEXING AND DRAWING OF ELECTRON DIFFRACTION PATTERNS

根据晶体极射投影图与电子衍射图的几何关系,本文提出一种可以标定、绘制七个晶系、五种点阵类型任意物相的电子衍射图的方法。讨论了该方法的数学模型、应用例子,编制了计算机程序。用AUTOCAD(计算机辅助设计和绘图)程序绘制电子衍射图。图形准确、可靠,可以编辑、存贮。

Based on the geometrical relationship between SP(Stereographic Projection)and EDP (Electron Diffraction Pattern), a new approach is introduced for indexing and drawing EDP for any compound of seven crystal system and five lattices.Its mathematical model is disccussed, some examples are presented, and computerprogram is written. The EDP is drawed with AUTOCAD software. The EDPPlotted is accurate and reliable. It can be edited and saved.