Quiroga Mellado, Juan AntonioMartínez Antón, Juan CarlosCanabal Boutureira, HéctorBernabeu Martínez, EusebioÁlvaro Labajo, M.Cortés Testillano, V.2023-06-202023-06-202001-06-011. O. Kafri, I. Glatt, The Physics of Moiré Metrology, (J. Wiley and Sons, New York, 1990). 2. K. Patorski, Handbook of the Moiré fringe technique, (Elsevier, Amsterdam, 1993). 3. Jae-Sun-Lim, Jongsu-Kim, Myung-Sai-Chung, “Automatic shadow moire topography: a moving-lightsource method”, Opt. Lett. 14, 1252-1253 (1989). 4. J. M. Burg, “The metrological applications of diffraction gratings”, Prog. Opt. 2, 75-107 (1961). 5. H. Takasaki, “Moire topography”, Appl. Opt. 9, 1467-1472 (1970). 6. J. Shamir, “Moire gauging by projected interference fringes”, Opt. Las. Tech. 5, 78-86 (1973). 7. S. H. Rowe, W. T. Weldford, “Surface topography of non-optical surfaces by projected interference fringes”, Nature 216, 786-787 (1967). 8. X. Xinjun, J. T. Atkinson, M. J. Lalor, D. R. Burton, “Three-map absolute moire contouring”, Appl. Opt. 35, 6990-6995 (1996). 9. G. Mauvoisin, F. Bremand, A. Lagarde, “Three-dimensional shape reconstruction by phase-shifting shadow moire”, Appl. Opt. 33, 2163-2169 (1994). 10. L. Pirodda, “Shadow and projection moire techniques for absolute or relative mapping of surface shapes”, Opt.-Eng. 21, 640-649 (1982). 11. A. S. Redner, “Shadow-Moiré surface inspection”, Materials Evaluation 48, 873-878 (1990). 12. D. R. Andrews, “Shadow moire contouring of impact craters”, Opt. Eng. 21, 650-654 (1982). 13. J. Marasco, “Use of a curved grating in shadow Moiré”, Exp. Mech. 15, 464-470 (1975). 14. A. M. F. Wegdam, O. Podzimek, H. T. Bosing, “Simulation of shadow moire systems containing a curved grating surface”, Appl. Opt. 31, 5952-5955 (1992). 15. E. A. Patterson, M. Heredia, internal communication, European project “INDUCE” ref. BRPR-CT98-0805.1094-408710.1364/OE.8.000649https://hdl.handle.net/20.500.14352/58786©2001 Optical Society of America. This work has been developed and supported within the framework of the European Project INDUCE: Advanced Integrated NDT Concepts for Unified Life-Cycle, ref. BRPR-CT98-0805.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.engEnhancement of surface inspection by Moiré interferometry using flexible reference gratingsjournal articlehttp://dx.doi.org/10.1364/OE.8.000649http://www.opticsinfobase.orgopen access535Shadow MoiréTopographyÓptica (Física)2209.19 Óptica Física