Evaluation of Acoustic Emission Signal Parameters for Identifying the Propagation of Discontinuities in Pressurized Tubes

Acoustic emission tests are highly relevant among nondestructive tests applied to equipment in the petroleum industry. This paper presents methodologies for the classification of acoustic emission patterns obtained in testing to identify the propagation of discontinuities in pressurized tubes. This work is a continuation of previous research. To estimate the accuracy of the classification and give greater reliability to previous results, use is made in this paper of new signals with a greater number of parameters, and some new methodologies not used in previous work are presented here. The new results show the efficiency of the pattern classification techniques implemented.