Simultaneous 3D location and size measurement of spherical bubbles using cylindrical interferometric out-of-focus imaging

Huanhuan Shen (1) , S. Coetmellec (1) , Marc Brunel (1)

1 CORIA - Complexe de recherche interprofessionnel en aérothermochimie

A cylindrical interferometric out-of-focus imaging set-up is presented for the characterization of spherical bubbles. The design of the set-up is realized using transfer matrix based models. The simultaneous three-dimensional (3D) location and size measurement of bubbles is demonstrated using fast Fourier transform algorithms. Experimental results are in very good agreement with theoretical predictions.

Keywords: Interferometric out-of focus imaging; Bubbles; Transfer matrices; Cylindrical geometry; 3D imaging

Domains: Engineering Sciences [physics]; Optics / Photonic

Huanhuan Shen, S. Coetmellec, Marc Brunel. Simultaneous 3D location and size measurement of spherical bubbles using cylindrical interferometric out-of-focus imaging. Journal of Quantitative Spectroscopy and Radiative Transfer, 2013, 131, pp.153-159. ⟨10.1016/j.jqsrt.2013.04.009⟩. ⟨hal-02112751⟩