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Appl Opt. 2010 Mar 20;49(9):1549-54. doi: 10.1364/AO.49.001549.

Quantitative measurement of size and three-dimensional position of fast-moving bubbles in air-water mixture flows using digital holography.

Author information

1
Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA. lei_tian@mit.edu

Abstract

We present a digital in-line holographic imaging system for measuring the size and three-dimensional position of fast-moving bubbles in air-water mixture flows. The captured holograms are numerically processed by performing a two-dimensional projection followed by local depth estimation to quickly and efficiently obtain the size and position information of multiple bubbles simultaneously. Statistical analysis on measured bubble size distributions shows that they follow lognormal or gamma distributions.

PMID:
20300149

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