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Proceedings Paper

Pulsed Holographic Nondestructive Testing On Aircraft
Author(s): Hubert Fagot; Paul Smigielski; Felix Albe; Jean-Louis Arnaud
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Paper Abstract

An holographic camera composed of two ruby lasers was built at ISL. It provides double exposure holograms with an adjustable time interval ranging from few ns to infinity. Various aircraft structures were first tested at ISL in laboratory conditions: honeycomb panels, wings ... The industrial tests on a military aircraft in maintenance checking were performed in a hangar of the SNIAS at Saint-Nazaire: wings, trap-door of the rear landing gear, air-brake... Electromechanical shocks were used to make the structure vibrate and to allow a fast trigger of the lasers. This avoids disturbance due to ambiant noises and vibrations.

Paper Details

Date Published: 16 June 1983
PDF: 4 pages
Proc. SPIE 0369, Max Born Centenary Conf, (16 June 1983); doi: 10.1117/12.934413
Show Author Affiliations
Hubert Fagot, Institut Franco-Allemand de Recherches de Saint-Louis (ISL) (France)
Paul Smigielski, Institut Franco-Allemand de Recherches de Saint-Louis (ISL) (France)
Felix Albe, Institut Franco-Allemand de Recherches de Saint-Louis (ISL) (France)
Jean-Louis Arnaud, Societe Nationale des Industries Aerospatiales (SNIAS) (France)

Published in SPIE Proceedings Vol. 0369:
Max Born Centenary Conf
M. John Colles; D. William Swift, Editor(s)

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