Signal Enhancement of Ultrasonic Guided Waves Using Time Reversal Technique

Abstract:

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Signal enhancement of ultrasonic guided waves is studied using time reversal technique. The defect in pipe is detected by activating single mode guided waves L(0,2) at the center frequency of 70 kHz. Time-reversal technique is used to further enhance the defect detection capability. A method to identify the defect is described on a finite element model. Numerical results show that the time reversal technique has the ability to evidently enhance the amplitude of damage reflected wave and improve the detection efficiency of defect.

Info:

Periodical:

Advanced Materials Research (Volumes 282-283)

Edited by:

Helen Zhang and David Jin

Pages:

589-592

DOI:

10.4028/www.scientific.net/AMR.282-283.589

Citation:

H. Y. Zhang et al., "Signal Enhancement of Ultrasonic Guided Waves Using Time Reversal Technique", Advanced Materials Research, Vols. 282-283, pp. 589-592, 2011

Online since:

July 2011

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Price:

$35.00

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