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Simultaneous 3D location and size measurement of bubbles and sand particles in a flow using interferometric particle imaging

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.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02112734
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Submitted on : Friday, April 26, 2019 - 9:35:06 PM
Last modification on : Tuesday, April 21, 2020 - 11:07:44 AM

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L. Ouldarbi, G. Pérret, P. Lemaitre, E. Porcheron, S. Coetmellec, et al.. Simultaneous 3D location and size measurement of bubbles and sand particles in a flow using interferometric particle imaging. Applied optics, Optical Society of America, 2015, 54 (25), pp.7773. ⟨10.1364/AO.54.007773⟩. ⟨hal-02112734⟩

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