FIELD: acoustic method of nondestructive inspection. SUBSTANCE: process can find use for nondestructive testing of welded bridge structures. Ut involves positioning of direct receiving converter arranged in line with inclination converter on to welded joints with sag. Direct receiving converter receives echo pulse reemitted by flat flaws. Presence of flaws above root is determined by presence of echoes received simultaneously by direct and inclination ultrasonic converters. EFFECT: enhanced authenticity of nondestructive testing. 2 cl, 2 dwg
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