Numerical investigation of error rates in rough particle sizing using interferometric out-of-focus imaging

Abstract : We realize a numerical investigation of error rates in rough particle sizing using interferometric out-of-focus imaging. We show that an automatic image processing based on a 2D-Fourier transform of the patterns enables size estimations with accuracy better than algorithms based on 2D-autocorrelation of the patterns. When ILIDS enables size determination of droplets whose out-of-focus images exhibit 2 or 3 bright fringes, we show that the minimum size measurable in the case irregular rough particles is around two or three times higher than for spherical droplets. © 2017 Elsevier GmbH
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Submitted on : Thursday, October 5, 2017 - 3:49:54 PM
Last modification on : Tuesday, July 9, 2019 - 11:30:02 AM

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M. Brunel, M. Talbi, L. Ouldarbi, S. Coetmellec, G. Gréhan. Numerical investigation of error rates in rough particle sizing using interferometric out-of-focus imaging. Optik, 2017, 147, pp.204-213. ⟨10.1016/j.ijleo.2017.08.046⟩. ⟨hal-01611260⟩

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