Development of an arrayed multi-coil eddy current testing probe without less sensitive regions and its application to steam generator tube inspection with noise source outside

Nozomu Sakurai, Haoyu Huang, Toshiyuki Takagi, Tetsuya Uchimoto

研究成果: Article査読

3 被引用数 (Scopus)

抄録

This paper describes improvement of an arrayed multi-coil probe of eddy current testing for steam generator tubes which was previously reported by the authors. Owing to the multi-coil arrangement, the present probe can detect cracks in the whole round of the tube without rotation, which leads to speedy scan of tubes. However, the authors confirmed the existence of less sensitive zone in the previous paper. In this paper, arrangement of element coils was considered with the help of numerical simulation so as to eliminate less sensitive zones. Experiment with use of the improved probe showed that maximum decrease of crack signals was improved to be 5% from 20% due to the change of coil arrangement in the probe. In addition, it was confirmed that the present probe can detect a outer defect of 20% in steam generator tubes with simulated support structures which are noise sources.

本文言語English
ページ(範囲)1574-1580
ページ数7
ジャーナルNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
69
11
DOI
出版ステータスPublished - 2003 11

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

フィンガープリント

「Development of an arrayed multi-coil eddy current testing probe without less sensitive regions and its application to steam generator tube inspection with noise source outside」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル