This paper describes a brief introduction to the theory and experiment concerning real-time holographic interferometry from the point of view of dynamic displacement measurements.

本文从动态测量的角度简述了全息干涉术的有关理论及实验方法。

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Dynamic fringe pattern can be observed throughout the testing by real-time holographic interferometry, while the traditional method is only suitable for static fringe pattern in phase extracting.

实时全息干涉法可以观察记录整个测试过程中条纹图的动态变化，传统相位提取算法只适合于静态干涉条纹图相位的提取。

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In the experiments of real-time holographic interferometry, some dark shadow areas appear among the interference fringes. The dark shadow areas play a very important role in the fracture process.

在实时全息干涉计量实验中，当试件负荷甚大时，干涉条纹中会出现一些阴影区，它们在试件破裂过程中起重要作用。

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