DocumentCode :
125017
Title :
Automated non-contact NDT by ultrasonic surface waves
Author :
Qiang Liu ; Piwakowski, Bogdan ; Lafhaj, Zoubeir ; Agred, Kahina
Author_Institution :
Lab. de Mec. de Lille, Ecole Centrale de Lille, Villeneuve d´Ascq, France
fYear :
2014
fDate :
20-23 June 2014
Firstpage :
79
Lastpage :
83
Abstract :
An automated ultrasonic scanner based on the non-contact air-coupled technique is designed and developed in order to perform nondestructive characterization of the surface of different structures and to detect the surface defects. The measurement is carried out without any contact with the examined part. The paper presents the scanner and several examples of its applications: the on-site characterization of concrete walls; the inverse analysis of concrete wall cover and the detection of surface defects on a steel sample and along old used railway rail.
Keywords :
automatic testing; concrete; railways; ultrasonic materials testing; ultrasonic waves; automated noncontact NDT; automated ultrasonic scanner; concrete walls; inverse analysis; noncontact air-coupled technique; old used railway rail; steel sample; surface defects; ultrasonic surface waves; Acoustics; Attenuation; Concrete; Dispersion; Rail transportation; Rails; Surface waves; NDT; inverse analysis; non-contact method; surface waves; ultrasonics;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nondestructive Evaluation/Testing (FENDT), 2014 IEEE Far East Forum on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4799-4731-7
Type :
conf
DOI :
10.1109/FENDT.2014.6928237
Filename :
6928237
Link To Document :
بازگشت