High‐Speed Underfilm Corrosion Imaging Using a Terahertz Camera | Zendy

FUSE NORIKAZU | Zendy; FUKUCHI TETSUO | Zendy; MIZUNO MAYA | Zendy; FUKUNAGA KAORU | Zendy

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High‐Speed Underfilm Corrosion Imaging Using a Terahertz Camera

Author(s) -

FUSE NORIKAZU,

FUKUCHI TETSUO,

MIZUNO MAYA,

FUKUNAGA KAORU

Publication year - 2016

Publication title -

electronics and communications in japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.131

H-Index - 13

eISSN - 1942-9541

pISSN - 1942-9533

DOI - 10.1002/ecj.11843

Subject(s) - terahertz radiation , materials science , raster scan , optics , opacity , scanner , laser scanning , optoelectronics , laser , signal (programming language) , physics , computer science , programming language

SUMMARY Nondestructive, two‐dimensional distribution measurement of rusting under opaque anticorrosion coating was carried out, using a terahertz camera, a quantum cascade laser, and a galvanic scanner. The measurement speed of the present method was found to be 11 times faster than the conventional raster scanning method based on time‐domain spectroscopy. A signal‐to‐noise ratio exceeding 10 2 was confirmed for both systems, which enables the detection of minor rusting.

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