Related Experiment Video
Updated: Mar 6, 2026

High-speed Particle Image Velocimetry Near Surfaces
Published on: June 24, 2013
Correlation Characterization of Particles in Volume Based on Peak-to-Basement Ratio
Tatiana A Vovk1, Nikolay V Petrov1
1ITMO University, Department of Photonics and Optical Information Technologies, Saint-Petersburg, 199034, Russia.
Abstract:
We propose a new express method of the correlation characterization of the particles suspended in the volume of optically transparent medium. It utilizes inline digital holography technique for obtaining two images of the adjacent layers from the investigated volume with subsequent matching of the cross-correlation function peak-to-basement ratio calculated for these images. After preliminary calibration via numerical simulation, the proposed method allows one to quickly distinguish parameters of the particle distribution and evaluate their concentration. The experimental verification was carried out for the two types of physical suspensions. Our method can be applied in environmental and biological research, which includes analyzing tools in flow cytometry devices, express characterization of particles and biological cells in air and water media, and various technical tasks, e.g. the study of scattering objects or rapid determination of cutting tool conditions in mechanisms.
Related Concept Videos
Mass Spectrum
¹H NMR Signal Integration: Overview
2D NMR: Overview of Heteronuclear Correlation Techniques
2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)
Correlation of Experimental Data
For example, a spherical particle moving through a viscous fluid experiences drag. Dimensional analysis shows that the drag force depends on the particle's diameter, velocity,...
Mass Spectrometry: Isotope Effect

