Problem stastement : The digital holography technique, used in measuring the deformations of the scatterers, the process is based on subtraction of interference patterns. A first image is recorded before the deformation of the object in the RAM of a computer, a second followed after deformation. The square of the difference between the two images provides correlation fringes in real time directly observable on the monitor. Results : The interpretation of these fringes to determine the deformation. Conclusion : In this paper, we present experimental results of the variation of diffraction patterns for various displacements of paper.

How to Cite
R. DAIRA, V.CHALVEDIN, Dr.. Detection of Microstructure of Roughness by Optical Method. Global Journal of Research In Engineering, [S.l.], v. 12, n. 2-A, feb. 2012. ISSN 2249-4596. Available at: <https://engineeringresearch.org/index.php/GJRE/article/view/389>. Date accessed: 12 june 2021.