Scanning beam technique to measure small diffusion-coefficients

Year: 1994

Authors: Francini F., Buah Bassuah PK., Arecchi F.T.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy
Department of Physics, University of Firenze, 50125 Firenze, Italy

Abstract: In order to measure small diffusion coefficients of miscible fluids, the deflected beam technique was improved by introducing a method whereby deflections corresponding to different positions of the laser beam were compared. The method requires only knowledge of the vertical position difference DELTAz of the laser beam at different times, without any requirement for an assignment of the initial vertical coordinate of the fluid interface.

Journal/Review: OPTICS COMMUNICATIONS

Volume: 105 (5-6)      Pages from: 285  to: 288

KeyWords: Diffusion; Laser applications; Laser beam effects; Measurements; Mixtures, Diffusion coefficients; Laser beam deflection; Miscible fluids; Water/glycerin mixtures, Liquids
DOI: 10.1016/0030-4018(94)90396-4

Citations: 5
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