High-speed holographic metrology: principle, limitations, and application to vibroacoustics of structures

Julien Poittevin; François Gautier; Charles Pézerat; Pascal Picart

doi:10.1117/1.OE.55.12.121717

19 July 2016 High-speed holographic metrology: principle, limitations, and application to vibroacoustics of structures

Julien Poittevin, François Gautier, Charles Pézerat, Pascal Picart

Author Affiliations +

Optical Engineering, Vol. 55, Issue 12, 121717 (July 2016). https://doi.org/10.1117/1.OE.55.12.121717

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.

Citation Download Citation

Julien Poittevin, François Gautier, Charles Pézerat, and 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

Published: 19 July 2016

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