shearography

1.The principle and structure of laser shearography and electronic speckle interferometry were introduced.Speckle pattern was disposed and analysed.

要介绍了研制的激光电子剪切散斑干涉成像系统的原理及结构组成，对散斑图像进行了图像处理。

2.Its subject coverage includes: holography, shearography, tomography, radiography, and interferometry;ultrasonic, eddy current, penetrant, and acoustic emission testing;

它的主题报导包括：统计方法的实施对机械加工制品在制造周期其间的质量改善；