Analysis of mechanical vibrations through speckle interferometry: A phase-space approach

作者：Ayala G; Rivera A L; Davila A; Garnica G; Castano V M^*

来源：Optik, 2010, 121(22): 2028-2035.

DOI：10.1016/j.ijleo.2009.06.012

• Speckle interferometry
• Mechanical vibrations
• Phase space

The goal of this paper is to determine hidden periodicities (spatial frequencies) into speckles patterns obtained in a diffuser after reflection of an unexpanded laser beam over an aluminum membrane by means of the so-called Wigner Distribution WDF). These spatial frequencies are used to find the temporal frequencies at which the mechanic system is vibrating.

• 出版日期2010