UHF METHOD FOR IRREGULARITY INTROSCOPY OF DIELECTRIC AND MAGNETO-DIELECTRIC SURFACES USING A SLOW SURFACE WAVE Russian patent published in 2007 - IPC G01N15/08 G01R27/32 

FIELD: methods for detecting irregularities of electro-physical and geometric parameters of dielectric and magneto-dielectric covers on metal surface, possible use during control of composition and properties of solid covers in chemistry, paintwork and other industrial branches.

SUBSTANCE: UHF introscopy method includes creating an electromagnetic field of slow surface wave above a dielectric cover on electro-conductive substrate and following recording of electric field strength changes. Expectation m_α and dispersion D_α are computed for normal fading coefficient of electric field of slow surface wave in each point of measurements of the surface being scanned using provided mathematical formulas. Using a matrix of dispersion values of field fading coefficient, across the whole scanning surface a spatial distribution of normal fading coefficient of slow surface wave field is built, for which wave the spatial pattern visually shows shape and geometric dimensions of irregularities.

EFFECT: increased precision when determining irregularities of covers and when evaluating their geometric and electro-physical parameters.

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