Multi-view interferometric out-of-focus imaging for ice particle characterization

Mohamed Talbi (1) , Barbara Delestre (1) , Marc Brunel (1)

1 CORIA - Complexe de recherche interprofessionnel en aérothermochimie

A multi-view interferometric particle imaging setup (IPI) is developed and allows the characterization of droplets of liquid water and / or irregular ice particles. The study of these particles highlights first the "signature" of droplets of liquid water during icing. In a second part, using two different angles of views, we perform reconstructions to obtain a 3D description of the rough ice particles, and to estimate the volume of the particles and the possible error rate.

Mots clés: Irregular rough particles; Interferometric out-of-focus imaging; Ice crystals; Icing; droplets; 2Dimensional autocorrelation; 2D Fourier transform; Reconstruction; Shapes; Size; Orientation

Domaines: Optique / photonique

Mohamed Talbi, Barbara Delestre, Marc Brunel. Multi-view interferometric out-of-focus imaging for ice particle characterization. 15th International Conference on Fluid Control, Measurements and Visualization, May 2019, Naples, Italy. ⟨hal-02145593⟩