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J. Imaging 2017, 3(3), 27; doi:10.3390/jimaging3030027

Terahertz Application for Non-Destructive Inspection of Coated Al Electrical Conductive Wires

Department Materials Science and Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8576, Japan
Author to whom correspondence should be addressed.
Received: 30 April 2017 / Revised: 10 July 2017 / Accepted: 11 July 2017 / Published: 14 July 2017
(This article belongs to the Special Issue THz and MMW Imaging)
View Full-Text   |   Download PDF [1519 KB, uploaded 14 July 2017]   |  


At present, one of the main inspection methods of electric wires is visual inspection. The development of a novel non-destructive inspection technology is required because of various problems, such as water invasion by the removal of insulators. Since terahertz (THz) waves have high transparency to nonpolar substances such as coatings of conductive wire, electric conductive wires are extremely suitable for THz non-destructive inspection. In this research, in order to investigate the quantitative possibility of detecting the defects on aluminum electric wire, THz wave reflection imaging measurement was performed for artificially disconnected wires. It is shown that quantitative detection is possible for the disconnect status of the aluminum electric wire by using THz waves. View Full-Text
Keywords: terahertz wave; imaging; non-destructive inspection; aluminum electric wire terahertz wave; imaging; non-destructive inspection; aluminum electric wire

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kuroo, K.; Hasegawa, R.; Tanabe, T.; Oyama, Y. Terahertz Application for Non-Destructive Inspection of Coated Al Electrical Conductive Wires. J. Imaging 2017, 3, 27.

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