HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Directions of work or proceedings

Combined digital-DOE holographic interferometer for force identification in vibroacoustics

Abstract : This paper presents the proof of principle of high-speed holographic measurements applied to solve an inverse problem in the domain of vibroacoustics. In order to get a robust and efficient set-up, a compact holographic interferometer which includes a Fresnel configuration equipped with a negative zoom for large surfaces and a diffractive optical element to improve the photometric efficiency of the set-up was developed. The vibration measurements from the digital holographic set-up are applied to the “RIFF” method which provides identification of the force distribution at the surface of the vibrating object, by solving a regularized inverse problem. Experimental results demonstrate the advantage provided by full-field measurements from multi-point holographic vibrometer with fine spatial and temporal resolutions.
Document type :
Directions of work or proceedings
Complete list of metadata

Contributor : Julien Le Meur Connect in order to contact the contributor
Submitted on : Tuesday, January 8, 2019 - 4:27:51 PM
Last modification on : Monday, April 4, 2022 - 9:28:14 AM



Julien Poittevin, Charly Faure, Julien Le Meur, Pascal Picart, Charles Pezerat, et al.. Combined digital-DOE holographic interferometer for force identification in vibroacoustics. SPIE Photonics Europe, Apr 2018, Strasbourg, France. Proceedings of SPIE, the International Society for Optical Engineering, 10677 (Unconventional Optical Imaging), 2018, ⟨10.1117/12.2307632⟩. ⟨hal-01974226⟩



Record views