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Master Thesis

Mesure de vibrations acoustiques par vision par ordinateur

Abstract : In the acoustic domain, we're interested in materials performance deformed by a vibration in order to access the displacement information, and not only the deformation. For contactless, surface and three-dimensional information, optical methods such as digital images correlation or interferometers are a better alternative than current vibratory methods (extensometers, vibrometers...). Aim here is to measure the displacement field of a plate punctually excited with photos taken from cameras and the photogrammetric protocol elaborate. Different cameras and patterns are tested to reach the best accuracy. Finally, a solution using one camera and mirrors will be introduced.
Document type :
Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-00915128
Contributor : Cnam - Service Commun de la Documentation - Esgt <>
Submitted on : Friday, December 6, 2013 - 3:50:19 PM
Last modification on : Saturday, February 8, 2020 - 12:02:15 PM
Long-term archiving on: : Friday, March 7, 2014 - 9:50:17 AM

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  • HAL Id : dumas-00915128, version 1

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Matthieu Biggio. Mesure de vibrations acoustiques par vision par ordinateur. Sciences de l'ingénieur [physics]. 2013. ⟨dumas-00915128⟩

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