Title :
10D-3 Long Range Guided Wave Inspection of Pipelines by a New Local Magnetostrictive Transducer
Author :
Bertoncini, F. ; Raugi, M. ; Turcu, F. ; Acciani, G. ; Brunetti, G. ; Fornarelli, G.
Author_Institution :
Univ. di Pisa, Pisa
Abstract :
In this paper, a new sensor for ultrasonic guided waves (UGW) acquisition is described. It is capable of localized step-by-step signal acquisition making possible defect identification and classification. In addition, the effectiveness of a method for defect classification is investigated. It is based on the evaluation of the angular profiles corresponding to each detected echo. Finally, the method was tested on experimental results.
Keywords :
acoustic signal detection; flaw detection; pipelines; signal classification; ultrasonic materials testing; ultrasonic transducers; defect classification; defect identification; local magnetostrictive transducer; localized step-by-step signal acquisition; long range guided wave inspection; pipelines inspection; ultrasonic guided waves acquisition; Data acquisition; Information geometry; Inspection; Magnetostriction; Piezoelectric transducers; Pipelines; Reflection; Signal processing; Ultrasonic transducers; Wavelet domain;
Conference_Titel :
Ultrasonics Symposium, 2007. IEEE
Conference_Location :
New York, NY
Print_ISBN :
978-1-4244-1384-3
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2007.233
