MICROWAVE METHOD OF DETECTING AND EVALUATING NON-UNIFORMITIES IN DIELECTRIC COATINGS ON METAL Russian patent published in 2014 - IPC G01N22/02 

FIELD: physics.

SUBSTANCE: method involves scanning the surface of the coating with a given step and generating a two-dimensional matrix of values of the dispersion of the coefficient of normal field attenuation on the entire scanning surface, and generating a second electromagnetic E wave, followed by calculating the absolute deviation of dispersions of the coefficient of field attenuation, while constructing spatial distribution of average values of dispersions of the coefficient of normal field attenuation of surface slow waves E_λ1, E_λ2 and H_λ3, the spatial pattern of which visually displays the distribution of non-uniformities and their boundary.

EFFECT: high probability of detecting small-size non-uniformities and high accuracy of estimation of boundaries thereof.

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