METHOD FOR CONTACT-FREE ULTRASONIC DIAGNOSTICS OF WELDED JUNCTIONS

摘要

FIELD: physics, measurement. ^ SUBSTANCE: object of invention includes contact-free exciting of ultrasonic wave in object by laser emission and wave registration in reflection or transit mode by optic fiber device with interferometre. Ultrasonic wave in vicinity of welded seam is excited by powerful spatial electric pulse charge synchronised in time with light pulse source of system of ultrasonic wave registration in object. ^ EFFECT: increased control depth and microfault resolution during contact-free ultrasonicdiagnostics of welded seams. ^ 3 cl, 2 dwg