%0 Journal Article
%A Quiroga Mellado, Juan Antonio
%A Martínez Antón, Juan Carlos
%A Canabal Boutureira, Héctor Alfonso
%A Bernabéu Martínez, Eusebio
%A Álvaro Labajo, M.
%A Cortés Testillano, V.
%T Enhancement of surface inspection by Moiré interferometry using flexible reference gratings
%D 2001
%@ 1094-4087
%U https://hdl.handle.net/20.500.14352/58786
%X We have extended the use of shadow Moiré technique to be implemented in simple curved surfaces by using a flexible grating. Dynamic visual inspection of surface micro-damages is significantly favored by the use of well adapted pliable gratings compared to the use of flat reference gratings. The experimental set-up consists of a plastic foil with a printed Ronchi grating stretched between three points which adapts to any cylindrical or conical convex surface independently of the relative orientation grating/surface. Static quantification of defects profiles is also possible with an attached CCD camera. Visual detection of defects in the range of ~30 μm in depth is obtainable.
%~