Abstract
Abstract Acoustic emission (AE) can be used to monitor damage such as fracture and corrosion in situ. For AE from individual signal bursts produced by the corrosion process, the intensity of the AE energy and HIT (hit count) may be used potentially to grade the severity of the corrosion level. However, different conditions, such as the size of the tank, the type of AE sensor, or the liquid medium, may cause different levels of AE signals even when obtained from the identical corrosion source. This problem makes the quantitative understanding of corrosion damage using AE difficult. In this paper, the effects of the AE wave propagation paths, including the liquid medium, the AE sensor, the connection cable, and the amplified signals, on the AE signal received from a uniform corrosion process on carbon steel, are investigated and modeled with theoretical and empirical equations. In addition, to verify our proposed model for various types of AE sensors, the air jet implemented is demonstrated to convert AE en...
Published Version
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