2D full field vibration analysis with multiplexed digital holograms.
Opportunities for full field 2D amplitude and phase vibration analysis are presented. It is demonstrated that it is possible to simultaneously encode-decode 2D the amplitude and phase of harmonic mechanical vibrations. The process allows the determination of in plane and out of plane vibration components when the object is under a pure sinusoidal excitation. The principle is based on spatial multiplexing in digital Fresnel holography. Experimental results are presented in the case of an industrial application.
Picart
Pascal
P
Leval
Julien
J
Pascal
Jean Claude
JC
Boileau
Jean Pierre
JP
Grill
Michel
M
Breteau
Jean Marc
JM
Gautier
Benjamin
B
Gillet
Stéphane
S