Falling sheet envelope method for non-destructive testing time-dependent signals

Authors:
J. A. Pérez-Benitez;L. R. Padovese
Affiliations:
Departamento de Física, Facultad de Ciencias Naturales, Universidad de Oriente, Av. Patricio Lumumba s/n, 90500 Santiago de Cuba, Cuba;Departamento de Engenharia Mecínica, Escola Politécnica, Universidade de São Paulo, Av. Prof. Mello Moraes, 2231, 05508-900 São Paulo, Brazil
Venue:
Expert Systems with Applications: An International Journal
Year:
2011

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Expert Systems with Applications: An International Journal

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Abstract

In this work, an algorithm to compute the envelope of non-destructive testing (NDT) signals is proposed. This method allows increasing the speed and reducing the memory in extensive data processing. Also, this procedure presents advantage of preserving the data information for physical modeling applications of time-dependent measurements. The algorithm is conceived to be applied for analyze data from non-destructive testing. The comparison between different envelope methods and the proposed method, applied to Magnetic Bark Signal (MBN), is studied.