Simultaneous size and velocity measurements of cavitating microbubbles using interferometric laser imaging

Lacagnina, Giovanni; Grizzi, Silvano; Falchi, Massimo; Felice, Fabio Di; Romano, G. P.

doi:10.1007/s00348-011-1055-9

Cited by 39 publications

(9 citation statements)

References 7 publications

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“…Based on the scattering properties of particles [7,8], it envolves simply a laser sheet and an imaging system (objective and CCD sensor). It can give access simultaneously to the position and the size of the objects under study [9], can be coupled to other techniques as PIV for velocity measurements [10]. The interpretation of the results is based on simple analytical relations [11].…”

Section: Introductionmentioning

confidence: 99%

Interferometric out-of-focus imaging simulator for irregular rough particles

Brunel

Coëtmellec

Gréhan

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

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We present the development of an original simulator to predict interferometric out-of-focus patterns created by irregular rough particles. Despite important simplifications of the scattering properties, this simulator allows to predict quantitative properties of the speckle-like patterns: i.e. the dimension of the central peak of the 2D-autocorrelation of the pattern. This parameter can then be linked to the size and the shape of the particle projected on the CCD sensor, in cases where there is no exact theoretical formulation to calculate the scattered intensity. An experimental demonstration is performed with irregular NaCl salt crystals.

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Section: Introductionmentioning

confidence: 99%

Interferometric out-of-focus imaging simulator for irregular rough particles

Brunel

Coëtmellec

Gréhan

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

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“…There is set the minimum distance between fringes in interference pattern x=2px. [8,9,10] The experimental setup for IPI technique is based on laser source and high-resolution camera. The simplest version doesn't require two cameras, when velocity field calculation is not need.…”

Section: Interferometric Particle Imaging Methods (Ipi)mentioning

confidence: 99%

Compiled visualization with IPI method for analysing of liquid liquid mixing process

et al. 2018

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The article deals with the research of mixing process using visualization techniques and IPI method. Characteristics of the size distribution and the evolution of two liquid-liquid phase's disintegration were studied. A methodology has been proposed for visualization and image analysis of data acquired during the initial phase of the mixing process. IPI method was used for subsequent detailed study of the disintegrated droplets. The article describes advantages of usage of appropriate method, presents the limits of each method, and compares them.

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“…Likewise, the dynamic of gas bubbles in multi-phase flows are widely investigated e.g. cavitation and bubbly flow [8][9][10] . Especially for small transparent particles, interferometric particle imaging (IPI) 1,[10][11][12] is a popular volumetric non-intrusive laser-optical measurement technique for the time resolved sizing of poly-dispersed particles.…”

Section: Introductionmentioning

confidence: 99%

Interferometric Particle Imaging for Particle Sizing in the Front-, Side-, and Back-Scatter Region

Sax¹,

Dreisbach²,

Kriegseis³

2023

Preprint

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Interferometric particle imaging is a widely used optical measuring technique for the sizing of poly-dispersed spherical particles like droplets and bubbles. In its conventional approach, the method is limited to forward-scattering angles and therefore, requiring a second optical access, restricting the range of possible applications. In the present work, this limitation of the scattering angle is addressed, showing that also other scattering angles, especially in the back-scatter region are applicable, expanding the technique to applications with only a single optical access. A general method for the identification of suitable scattering angles both for droplets and bubbles is proposed. The visibility criterion for interference patterns from particles is generalized and possible glare point parings and their separation in the forward-, side-and back-scatter regimes are discussed for droplets and bubbles. Due to being the most popular examples, different scattering angles are proposed for water droplets and air bubbles in water. In the last part, the method is validated on a bubble sizing experiment.

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Simultaneous size and velocity measurements of cavitating microbubbles using interferometric laser imaging

Cited by 39 publications

References 7 publications

Interferometric out-of-focus imaging simulator for irregular rough particles

Interferometric out-of-focus imaging simulator for irregular rough particles

Compiled visualization with IPI method for analysing of liquid liquid mixing process

Interferometric Particle Imaging for Particle Sizing in the Front-, Side-, and Back-Scatter Region

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