全息干涉法中刚体位移的影响

Influences of Rigid-body Displacement on Holographic Interferometry

以双曝光全息干涉法为例，定量地分析了试件在空间6个自由度产生刚体运动时所形成的干涉条纹图的分布特点，导出了条纹图的空间分布函数表达式和空间分布梯度表达式．经研究得出了试件在受载时发生刚体运动对全息干涉法影响的具体结论。

In this paper, double-exposure holographic interferometry is used to analyze quantitatively the distribution features of fringe-patterns produced by a specimen inrigid-body movement in the space of six degrees of freedom. Space distribution functionexpressions and space distribution gradient expressions of fringe-patterns are deduced.The concrete conclusions about influences of rigid-body movement by loaded specimen onholographic interferometry are obtained.