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R. DAÏRA1,* , B. BOUDJEMA1, M. BOUABAZ1, M. MORDJAOUI2
The electronic technique of interferometry speckle, used in the measurement of the deformations of diffusing objects, is based on the process of subtraction of the figures of interferences. A first image of speckle is recorded before the deformation of the object in the RAM of a computer, followed a second after deformation. The square of the difference between the two images gives fringes of correlation in observable real times directly on the monitor. The interpretation of these fringes makes it possible to determine the deformation. In this communication, we have experimental results of deformation out of the plan of two samples out of Aluminium and stainless..
Speckle, Non destructive testing, Aluminium, Interferometry, Image processing.
R. DAÏRA, B. BOUDJEMA, M. BOUABAZ, M. MORDJAOUI, Application of digital holography for deformation control, Optoelectronics and Advanced Materials - Rapid Communications, 5, 4, April 2011, pp.370-375 (2011).
Submitted at: March 18, 2011
Accepted at: April 11, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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