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

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.
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https://hal.archives-ouvertes.fr/hal-02403124
Contributeur : Pascal Picart <>
Soumis le : mardi 10 décembre 2019 - 17:35:17
Dernière modification le : jeudi 15 avril 2021 - 11:50:15

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Julien Poittevin, François Gautier, Charles Pezerat, Pascal Picart. High-speed holographic metrology: principle, limitations, and application to vibroacoustics of structures. Optical Engineering, SPIE, 2016, 55 (12), pp.121717. ⟨10.1117/1.OE.55.12.121717⟩. ⟨hal-02403124⟩

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