Evaluation of Ultrasonic Waveform for Flaw-Image Reconstruction Using EMAT Probe

Abstract:

Equations for reconstructing 3D images of internal flaws are presented. Waveforms were measured from a simple reference sample to derive the response function of the probe, and the response function was calculated based on those waveforms. A sample with internal flaws was prepared to evaluate the reconstructed images of internal flaws derived by EMAT using magnetostrictives. 3D-images of an internal flaw could be derived using this response function.

• Periodical: Materials Science Forum (Volume 721)
• Pages: 243-248
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.721.243
• Online since: June 2012
• Authors: Yoshihiro Nishimura, Takayuki Suzuki
• Keywords: Barkhausen Effect, EMAT, Magnetostrictive, Response Function, UT

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