This paper presents a new ultrasonic NDT technique for measuring the thicknessof a nonmetal material(called the ciadding material)with low sound velocity which iscladded on the one side of a thin metal plate(called th...
A new approach so-called multi-reflection scanning method by transvers ultrason-ic wave is described for the NDT of adherend between metal and.nonmetal surfaces.Accord-ing to the adherent state,the destruction strengt...