Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society for Nondestructive Testing
Journal Basic Information
Journal DOI :
The Korean Society for Nondestructive Testing
Editor in Chief :
Volume & Issues
Volume 5, Issue 1 - Nov 1985
Volume 4, Issue 2 - May 1985
Selecting the target year
Development of Three Dimensional Vision Using a Color T.V. Set
Kim, C.J. ; Chung, S.S. ;
Journal of the Korean Society for Nondestructive Testing, volume 5, issue 1, 1985, Pages 3~8
A three dimensional vision is obtained by stereoscopic view using a modified commercial TV set and matching color filter glasses. Two video signals from two CCTV cameras are connected to the RGB (red, green, blue) inputs of picture tube selecting two different colors for two video signals. A synchronizing signal drives a CCTV camera and the color TV set. On the other hand, a delayed synchronizing signal drives the other CCTV camera shifting its image on display. This shift is used in correcting image distortion.
Study on Propagated Crack and Stress Level of Boshinkak Bell(No.2 Trensure)
Yum, Yung-Ha ;
Journal of the Korean Society for Nondestructive Testing, volume 5, issue 1, 1985, Pages 9~23
Boshin-Kak Bell, which is one of the largest bells, is located at Chong-Ro Square in the center of Seoul. The bell has been struct early morning and late evening for time-report since the 14th century in Lee Era. Therefore Boshin-Kak Bell has been an intimate old friend of Seoul citizen more than 500 years. Unfortunately, motal large cracks were found inside this bell in the horizontal and vertical directions in 1979. The present paper has investigated the propagated bell-crack by ultrasonic flaw detecting method, and the stress level, bell vibration and weight measurement by electric wire resistance strain gauge method. The results indicate that they are useful for further study of Korean bell by nondestructive test.
A Study on the Correlation Between Ultrasonic Attenuation and Mechanical Properties in ALSI 4140 Steel
Park, C.H. ; Kwak, K.J. ; Park, D.Y. ; Song, J.T. ;
Journal of the Korean Society for Nondestructive Testing, volume 5, issue 1, 1985, Pages 24~33
A study has been made on the correlation between ultrasonic attenuation and mechanical properties with different prior austenite grain size. It was found that ultrasonic attenuation is increased with increasing grain size, decreasing yield strength and increasing charpy impact energy value for ALSI 4140 steel.
A Study of Automation for Examination Analysis of Inservice Inspection for Nuclear Power Plant (I)
Kim, W. ;
Journal of the Korean Society for Nondestructive Testing, volume 5, issue 1, 1985, Pages 34~47
The developing country, KOREA where does not possess the natural resources for traditional energy such as oil and gas, so. The nuclear energy is the most single reliable source available for closing the energy gap. For these reason, It is inavoidable to construct the nuclear power plant and to develop technology related nuclear energy. The rate of operation in large nuclear power facilities depends upon the performance of work system through design and construction, and also the applied technology. Especially, it is the most important element that safety and reliability in operation of nuclear power plant. In view of this aspects, Nuclear power plant is performed severe examinations during preservice and inservice inspection. This study provide an automation of analysis for volumetric examination which is required to nuclear power plant components. It is composed as follows: I. Introduction II. Inservice Inspection of Nuclear Power Plant
Principle and Methods of Ultrasonic Test.
Study of Flaw Evaluation and Design of Classifying Formula for Flaws. III. Design of Automation for Flaw Evaluation. IV. An Example V. Conclusion In this theory, It is classifying the flaws, the formula of classifying flaws and the design of automation that is the main important point. As motioned the above, Owing to such as automatic design, more time could be allocated to practical test than that of evaluation of defects, Protecting against subjective bias tester by himself and miscalculation by dint of various process of computation. For the more, adopting this method would be used to more retaining for many test data and comparative evaluating during successive inspection intervals. Inspite of limitation for testing method and required application to test components, it provide useful application to flow evaluation for volumetric examination. Owing to the characteristics of nuclear power plant that is highly skill intensive industry and has huze system, the more notice should be concentrated as follows. Establishing rational operation plan, developing various technology, and making the newly designed system for undeveloped sector.
Utilization of D.G.S. Diagram in Ultrasonic Tesiing (III)
Park, U.S. ;
Journal of the Korean Society for Nondestructive Testing, volume 5, issue 1, 1985, Pages 48~51