Ultrasonic Speckle Surpression Technique for Nondestructive Evaluation of Steam Generator in Nuclear Power plants

핵발전소의 증기발생기 비파괴 평가를 위한 초음파 스펙클 감소 기술

In this paper, we present a ultrasonic speckle suppression method for centrifugal-casted stainless steel sample by computer simulations of a flaw enhancement algorithm. Because of their practical importance in welds, the ultrasonic signal obtained from heat-affected zone or welds are investigated for computer simulation. The results for computer simulation present the more enhanced flaw-visibility and speckle suppression than the compared two techniques.