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Leak Detection Technique of Pressure Vessel Using Acoustic Emission Signal  

이성재 (부산대학교 대학원 정밀기계공학과)
정연식 (부산대학교 대학원 정밀기계공학)
강명창 (부산대학교 정밀정형 및 금형가공 연구)
김정석 (부산대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.13, no.4, 2004 , pp. 95-99 More about this Journal
Abstract
In this study, the leak detection technique of pressure vessel by using acoustic emission(AE) signal is suggested experimentally. The leak of pressure vessel is located at the welding line due to welding defects. we measured the AE signal using Rl5I sensor, and examined the AE parameters in leak condition. It is investigated that the mean value of AE signal is dependent on leak source location. So the absolute mean value of AE signal is adopted as dominant AE parameter. We proposed leak detection algorithm using AE signal mean value for monitoring the leak source location.
Keywords
Pressure Vessel; Leak Detection; Acoustic Emission Signal;
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