Observation of damage in insulated copper cables by THz imaging

Seiya Takahashi, Tomoyuki Hamano, Kaori Nakajima, Tadao Tanabe, Yutaka Oyama

研究成果: Article査読

17 被引用数 (Scopus)

抄録

A novel non-destructive inspection method using terahertz waves for the detection of broken wires in copper cables shielded by insulating polymer opaque in the visible and near infrared light region is presented. Terahertz reflection imaging, using a 0.14 THz IMPATT oscillator and a Schottky barrier detector, was applied to insulated copper cables that had been artificially damaged. The internal insulated wires embedded in the opaque polyethylene can be clearly visualized using THz radiation. It was shown that a gap in a wire can be detected by a decrease in the intensity of the reflected signal where the size of the gap is greater than the wavelength of the oscillator.

本文言語English
ページ(範囲)75-79
ページ数5
ジャーナルNDT and E International
61
DOI
出版ステータスPublished - 2014
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 機械工学

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