Extraction of crack indications from ECT signals using signal phase characteristics of a multi-coil probe

Toshihiro Yamamoto, Toshiyuki Takagi, Tetsuya Uchimoto

研究成果: Article査読

3 被引用数 (Scopus)

抄録

This paper proposes a method to reduce noise and extract crack indications from detection signals of a 48-channel ECT system based on its signal phase characteristics. Because this 48-channel ECT system performs two kinds of scanning patterns: U-scan and T-scan, and obtains two sets of signal distributions for one scanning area simultaneously, the proposed method uses a two-stage process that includes so-called main filter and sub filter. Using these two filters imposes more strict conditions on extracting crack indications so as to reduce more noise. The experimental results show that the proposed filtering method is effective to extract only crack indications from detection signals including complicated noises.

本文言語English
ページ(範囲)1179-1184
ページ数6
ジャーナルInternational Journal of Applied Electromagnetics and Mechanics
33
3-4
DOI
出版ステータスPublished - 2010

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 電子工学および電気工学

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