Detection of polymer degradation and metal corrosion by terahertz imaging using a quantum cascade laser and a THz camera

Author

Ohki, Y. ; Adachi, Masakazu ; Komatsu, Marina ; Mizuno, M. ; Fukunaga, Kaori

Author_Institution

Dept. of Electr. Eng. & Biosci., Waseda Univ., Tokyo, Japan

fYear

2013

fDate

June 30 2013-July 4 2013

Firstpage

505

Lastpage

508

Abstract

Recently, THz waves with frequencies from about 0.1 to 10 THz have emerged as a new scientific tool. In this paper, feasibility of locating degraded portions in polymer-insulated power cables by THz waves has been examined, using a compact system consisting of a quantum cascade laser and a THz camera with uncooled microbolometers. The degradation we examined is oxidation of cross-linked polyethylene and rust on copper. As a result, we found that the compact system is capable of detecting polymer oxidation.

Keywords

XLPE insulation; oxidation; quantum cascade lasers; terahertz wave imaging; cross-linked polyethylene oxidation; metal corrosion; polymer degradation detection; polymer oxidation detection; polymer-insulated power cables; quantum cascade laser; terahertz camera; terahertz imaging; terahertz waves; uncooled microbolometers; Absorption; Copper; Corrosion; Degradation; Heating; Imaging; Quantum cascade lasers; compact imaging system; metal corrosion; polymer degradation; terahertz imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid Dielectrics (ICSD), 2013 IEEE International Conference on

Conference_Location

Bologna

ISSN

2159-1687

Print_ISBN

978-1-4799-0807-3

Type

conf

DOI

10.1109/ICSD.2013.6619816

Filename

6619816