MODE OF MEASURING ADHESION OF THE COVERING WITH A SUBSTRATE Russian patent published in 2007 - IPC G01N29/04 

FIELD: the invention is used for measuring adhesion of the covering with a substrate.

SUBSTANCE: the essence is that they direct ultra sound waves with the aid of a transformer to the substrate and the covering, collect a row of echo-signals arising as a result of reflection of ultra sound waves from the surfaces of the substrate and the covering, correlate the amplitudes of the two successive echo- signals , at that the mentioned measurement they fulfill in the air, at that the transformer is applied to the substrate with the aid of a fine film of gel, calculate soundness of the covering set by correlation between the amplitudes of the first two echo-signals received by the transformer and connected with the first two reflections on the border of the division substrate/covering after passing through the substrate or on the border of the division covering/air after passing through the substrate and the covering and define adhesion of the covering coming out of the function of correlation between soundness and mechanical stress of destruction of the covering received beforehand by way of testing on calibrating testing samples.

EFFECT: estimation of adhesion of the covering of the substrate or any detail on the spot.

6 cl, 7 dwg