Hyperspectral imaging analysis of corrosion products on metals in the UV range

Aoife Keane, Paul Murray, Jaime Zabalza, Antonio Di Buono, Neil Cockbain, Robert Bernard

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

2 Citations (Scopus)
216 Downloads (Pure)

Abstract

This work reviews and presents a comparison of hyperspectral imaging results when analysing corrosion products in the ultraviolet (UV) range (250 nm - 500 nm), visible near-infrared (VNIR) range (400 - 1000 nm) and shortwave-infrared range (900 - 2500 nm). In related and prior work in our group, corrosion products on steel have been detected using hyperspectral imaging in the VIS, NIR and SWIR regions of the spectrum. However, an extensive review of the academic literature has revealed that the hyperspectral response of corrosion in the UV has not been reported. To address this, we present our results of imaging corrosion products on metal substrates using our Headwall UV-VIS Hyperspectral imaging sensor. These results are contrasted with the same samples imaged using our Headwall VNIR E series and Headwall SWIR 640 Hyperspectral imaging sensors. Our initial results indicate that corrosion spectra in the UV are separable from those of steel, but that the VNIR is the most appropriate range for this type of determination.

Original languageEnglish
Title of host publicationHyperspectral Imaging and Applications II
Subtitle of host publicationProceedings Volume 12338
EditorsNick J. Barnett, Aoife A. Gowen, Haida Liang
Place of PublicationBellingham, Washington
Number of pages10
ISBN (Electronic)9781510657496
DOIs
Publication statusPublished - 11 Jan 2023
EventSPIE Photonex - Birmingham, United Kingdom
Duration: 6 Dec 20228 Dec 2022

Conference

ConferenceSPIE Photonex
Country/TerritoryUnited Kingdom
CityBirmingham
Period6/12/228/12/22

Keywords

  • hyperspectral imaging
  • ultraviolet
  • visible near-infrared
  • shortwave-infrared range

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