Detection of heavy-duty anticorrosion coating deterioration using near-infrared spectral characteristics

Deterioration Detection of Heavy-Duty Anticorrosion Coating Using Near-Infrared Hyperspectral Imaging

“…The infrared absorption spectra showing these characteristics have a pattern unique to each substance and have been used for structural analysis and qualitative analysis of substances. Kishigami et al [2] performed near-infrared measurements only in a specific wavelength range using the infrared spectral characteristics of the coatings. This measurement could detect exposed areas of the middle coating with good contrast.…”

Improvement of Anticorrosion Coating Thickness Measurement Using Multi-Wavelength Lock-In Infrared Data Processing

“…In the case of multiple-layered coatings, it is necessary to detect the deterioration of the outermost first layer at an early stage. Kishigami et al [1] developed an evaluation method for the deterioration of anticorrosion coatings using the near-infrared spectral characteristics. Sakata et al [2] also developed active self-reference lock-in nearinfrared measurement method.…”