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Microparticle characterization using digital holography

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Microparticle characterization using digital holography

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Title: Microparticle characterization using digital holography
Author: Emmanouil Darakis; Taslima Khanam; Rajendran, Arvind; Kariwala, Vinay; Naughton, Thomas J.; Anand, Asundi
Copyright year: 2009
Abstract: Digital holography is an effective 3D imaging technique, with the potential to be used for particle size measurements. A digital hologram can provide reconstructions of volume samples focused at different depths, overcoming the focusing problems encountered by other imaging based techniques. Several particle analysis methods discussed in the literature consider spherical particles only. With the object sphericity assumption in place, analysis of the holographic data can be significantly simplified. However, there are applications, such as particle analysis and crystallization monitoring, where non-spherical particles are often encountered. This paper discusses the processing of digital holograms for particle size and shape measurement for both spherical and arbitrarily shaped particles. An automated algorithm for identification of particles from recorded hologram and subsequent size and shape measurement is described. Experimental results using holograms of spherical and non-spherical particles demonstrate the performance of the proposed measuring algorithm.
Subject: DRNTU::Engineering::Chemical engineering::Chemical processes.
Type: Journal Article
Series/ Journal Title: Chemical engineering science
School: School of Mechanical and Aerospace Engineering
Rights: © 2009 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Chemical Engineering Science, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/j.ces.2009.09.057].
Version: Accepted version

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