In this paper the effectiveness of a procedure that allows the detection and characterization of defects by the analysis of two port equivalents parameters when a NDT ultrasound guided waves system is investigated. A wavelet expansion and a frequency domain representation of the input (transmitted) and output (reflected) signals have been carried out. A constant coefficient matrix behaving as a transfer function between the input and output port has been defined. The two port equivalent representation correctly simulates the complete system under a wide range of input waveforms in the actual operating condition. The effectiveness of this method to detect and characterize defects in the pipes has been investigated.

Long range guided waves characterization of defects by two port equivalents

BERTONCINI, FRANCESCO;MUSOLINO, ANTONINO;RAUGI, MARCO;TURCU, FLORIN OCTAVIAN
2005

Abstract

In this paper the effectiveness of a procedure that allows the detection and characterization of defects by the analysis of two port equivalents parameters when a NDT ultrasound guided waves system is investigated. A wavelet expansion and a frequency domain representation of the input (transmitted) and output (reflected) signals have been carried out. A constant coefficient matrix behaving as a transfer function between the input and output port has been defined. The two port equivalent representation correctly simulates the complete system under a wide range of input waveforms in the actual operating condition. The effectiveness of this method to detect and characterize defects in the pipes has been investigated.
Bertoncini, Francesco; Musolino, Antonino; Raugi, Marco; Turcu, FLORIN OCTAVIAN
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/802942
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