19 July 2016 High-speed holographic metrology: principle, limitations, and application to vibroacoustics of structures
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Abstract
This paper describes the basics of high-speed holographic metrology, its limitations, and its application to the investigation of traveling acoustic waves propagating in mechanical structures. Limits are related to a few parameters that must be carefully adjusted for the recording. A full numerical simulation of the recording–reconstruction holographic process is presented and used to investigate the decorrelation phase noise induced by spatial resolution, active surface of pixels, and short exposure time. Applications to vibroacoustics of structures consider the case of waves propagating after a shock by impact hammer and wave interaction in one-dimensional and two-dimensional acoustic black hole extremities.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Julien Poittevin, Julien Poittevin, François Gautier, François Gautier, Charles Pézerat, Charles Pézerat, Pascal Picart, Pascal Picart, } "High-speed holographic metrology: principle, limitations, and application to vibroacoustics of structures," Optical Engineering 55(12), 121717 (19 July 2016). https://doi.org/10.1117/1.OE.55.12.121717 . Submission:
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