The external quality control method using in the laboratory, included interlaboratory comparison and measurement audit.
外部质量控制方式有实验室间比对和测量审核两种方式。
2
With comparison to the experimental measurement results, it is found that the linear method is not able to capture the warpage behavior while nonlinear large deformation simulation can.
与实验测量结果相比，线性方法不能反映翘曲形态而非线性大变形仿真能够反映出这种翘曲。
3
The experiments , comparison and analysis for the three thickness measurement methods :two-beam diffraction method , contamination spot method and contamination line method were carried out.