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A computational method to calculate the transmit-receive mode echo responses from targets of complex geometry [ultrasonic nondestructive testing applications]

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4 Author(s)
Buiochi, F. ; Escola Politecnica da Univ. de Sao Paulo, Brazil ; Montero de Espinosa, F. ; Martinez, O. ; Gomez-Ullate, L.

In this paper a 3D computational method is proposed to calculate the echo responses from finite-sized targets of complex geometry. It can predict the form of the echo response from the target, considering mode conversion at the reflector surface. The model was compared to other modeling tools, and excellent agreement between our results and those of the others were found. Moreover, experimental results obtained using broadband transducers together with, for instance, plane and cylindrical concave rectangular reflectors in a water medium were compared to the theoretical results. The method can predict the measured echoes accurately.

Published in:
Ultrasonics Symposium, 2004 IEEE  (Volume:2 )

Date of Conference: 23-27 Aug. 2004

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