Particle field characterization by digital in-line holography : 3D location and sizing

Recent developments have shown the potential of digital in-line holography for diagnostics in fluids. This new method provides a low-cost and easy access method for measuring both size and velocity of small particles in a volume. Here it is shown that by applying traditional image processing tools o...

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Bibliographic Details
Published in:Experiments in fluids 2005-07, Vol.39 (1), p.1-9
Main Authors: PU, S. L, ALLANO, D, PATTE-ROULAND, B, MALEK, M, LEBRUN, D, CEN, K. F
Format: Article
Language:English
Subjects:
Digital
Exact sciences and technology
Fluid dynamics
Fluid flow
Fluids
Fundamental areas of phenomenology (including applications)
Holography
Instrumentation for fluid dynamics
Multiphase and particle-laden flows
Nonhomogeneous flows
Physics
Position (location)
Turbulence
Turbulent flow
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Summary:Recent developments have shown the potential of digital in-line holography for diagnostics in fluids. This new method provides a low-cost and easy access method for measuring both size and velocity of small particles in a volume. Here it is shown that by applying traditional image processing tools on the particle images digitally reconstructed, statistically reliable results on particles size and location are provided. The method is experimentally illustrated by glass microspheres that are moving in a turbulent flow generated by an annular jet. A comparison with the histogram diameters provided by a common diffraction particle sizer are presented.
ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-005-0937-0