ISSN 2079-3537      


Scientific Visualization, 2019, volume 11, number 3, pages 43 - 53, DOI: 10.26583/sv.11.3.04

Optical-electronic complex for investigation of the processes of heat and mass transfer by laser contactless method

Authors: A.V. Vedyashkina1, B.S. Rinkevichyus2, I.N. Pavlov3, I.L. Raskovskaya4, A.V. Tolkachev5

National Research University "MPEI"

1 ORCID: 0000-0002-2670-7712,

2 ORCID: 0000-0001-7336-1315,

3 ORCID: 0000-0002-9014-6294,

4 ORCID: 0000-0002-1231-9479,

5 ORCID: 0000-0003-4185-892X,



The work is devoted to development and creation of an optoelectronic complex for determination of the inhomogeneous condensed media parameters, principle of which is based on the method of structured laser radiation caustics. This method is described for determining the parameters of diffusion layer of liquid according to the position of caustic surfaces during longitudinal probing by a plane laser beam. Special software is presented that allows determining the distribution of the refractive index in the diffusion layer of liquid by comparing theoretically calculated and experimental refractograms. The results of the complex operation for the diffusion layer arising between the electrolyte solution and water for different concentrations of the electrolyte solution are shown. New method for determining the temperature of the surface of a cold body placed in a transparent liquid is presented, it is based on determining the location of the singular points of caustic surfaces arising when the boundary layer is probed by the horizontal element of structured beam.


Keywords: diffusion layer of liquid, refraction, caustic, laser refractography.