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