The Development of an Inspection System using 3-D Image Display for Detecting Inside Defects on Steam Generator Tubes

Recently, an eddy current inspection system has been developed by Central Research Institute of Korean Hydraulic and Nuclear Power Co., LTD. The system is optimized for Korean nuclear power plants. Its precision and efficiency are better than those of foreign systems. One of the subsystems consisted the system is introduced in this paper, which assists the eddy current signal analysis for the steam generator tubes of nuclear power plants. The system introduced in this paper can help the analyst judge to detect defects easily and precisely. The system has been developed by supplementing the existing system mapping 2D plane type and one color 3D surface type. The system is planned to be used in the PSI of Shin-Kori nuclear power plant unit 4