Top‐Hat Beam Technique: Improvements and application to bubble measurements
- 1 January 1991
- journal article
- research article
- Published by Wiley in Particle & Particle Systems Characterization
- Vol. 8 (1-4) , 222-228
- https://doi.org/10.1002/ppsc.19910080140
Abstract
A new‐generation velocimeter/sizemeter is described. Size measurement is based on the top‐hat beam technique. Velocity measurement is carried out by using laser Doppler velocimetry. Advantages and limitations of the top‐hat beam technique are discussed and compared with other techniques (pedestal, visibility, phase Doppler). Bubble diagnosis in a turbulent pipe flow is reported.Keywords
This publication has 15 references indexed in Scilit:
- Computations of the gn coefficients in the generalized Lorenz-Mie theory using three different methodsApplied Optics, 1988
- Light scattering from a sphere arbitrarily located in a Gaussian beam, using a Bromwich formulationJournal of the Optical Society of America A, 1988
- A concise presentation of the generalized Lorenz-Mie theory for arbitrary location of the scatterer in an arbitrary incident profileJournal of Optics, 1988
- Diffusion de la lumiere par une sphere dans le cas d'un faisceau d'extension finie—2. Theorie de lorenz-mie generalisee: Application a la granulometrie optiqueJournal of Aerosol Science, 1988
- Application of Top-Hat Laser Beam to Particle Sizing in LDV SystemPublished by Springer Nature ,1988
- Simultaneous measurements of velocities and sizes of particles in flows using a combined system incorporating a top-hat beam techniqueApplied Optics, 1986
- Nonintrusive optical single-particle counter for measuring the size and velocity of droplets in a sprayApplied Optics, 1984
- Method for measuring the size and velocity of spheres by dual-beam light-scatter interferometryApplied Optics, 1980
- Optical particle sizing for in situ measurements Part 1Applied Optics, 1979
- Measurement of Particle Size, Number Density, and Velocity Using a Laser InterferometerApplied Optics, 1972