Definition of Vibrations Spectrum of Engineering Construction Details via Dynamic Speckle-Structures Registration

摘要

Theoretical relations for fluctuation spectrum of the scatterred radiation in the case of small transverse vibration of a scatterer where obtained. The case of direct photodetection is considered. The equations received make it possible to obtain mechanical fluctuation spectra of a body from the intensity fluctuation spectra of scattered radiation by means of registration of dynamic speckle-structure.