Application of the spectral analysis of speckle dynamics in some problems of mechanics and nondestructive testing

Dynamic speckle - Interferometry of micro-displacements

“…In [4] on a qualitative level, the reasons about the possibility of using the approaches taken in [1][2][3], to determine the microscopic displacements have expressed. Under the micro-displacements we mean random displacements, defined on the areas which size are comparable with the size of the structure of the material.…”