Abstract
We present a system to characterize a triphasic flow in a 3D volume (air bubbles and solid irregular particles in water) using only one CCD sensor. A cylindrical interferometric out-of-focus imaging setup is used to determine simultaneously the 3D position and the size of bubbles and irregular sand particles in a flow. The 3D position of the particles is deduced from the ellipticity of their out-of-focus image. The size of bubbles is deduced from analysis of interference fringes. The characteristics of irregular sand particles are obtained from analysis of their speckle-like pattern. Experiments are confirmed by simulations.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
L. Ouldarbi, M. Talbi, S. Coëtmellec, D. Lebrun, G. Gréhan, G. Perret, and M. Brunel
Appl. Opt. 55(32) 9154-9159 (2016)
Yingchun Wu, Xuecheng Wu, Longchao Yao, Gérard Gréhan, and Kefa Cen
Appl. Opt. 54(9) 2514-2523 (2015)
M. Fromager, K. Aït Ameur, and M. Brunel
Appl. Opt. 56(12) 3594-3598 (2017)