Part I describes an intelligent acoustic emission locator, while Part II discusses blind source separation, time delay estimation and location of two continuous acoustic emission sources. Acoustic emission (AE) analysis is used for characterization and location of developing defects in materials. AE sources often generate a mixture of various statistically independent signals. A difficult probl...

Acoustic emission (AE) is a phenomenon where transient waves of stress are generated during deformed material, which applied to detect and monitor the cracks propagation. The majority related literature studied simulated wave sources, were utilized for single point pipe have been strictly controlled by temporal characteristics. Therefore, realistic sources do not known characteristics in presen...

The acoustic emission (AE) signals of metal materials have been widely used to identify the deformation stage of a pressure vessel. In this work, Q235 steel samples with different propagation distances and geometrical structures are stretched to get the corresponding acoustic emission signals. Then the obtained acoustic emission signals are de-noised by empirical mode decomposition (EMD), and t...