NDLI: Oxidation layer measurement by using visible and near infrared reflectance spectrum

Content Provider	IEEE Xplore Digital Library
Author	Choong Soo Lim Hyun Chul Park Heong Jun Huh Sang Jin Lee
Copyright Year	2011
Description	Author affiliation: Rolling and Instrumentation Research Group, POSLabs, 699, Gwangyang, Jeonnam, 545-090, Korea (Choong Soo Lim; Hyun Chul Park; Heong Jun Huh; Sang Jin Lee)
Abstract	High strength steels, which contain alloy elements like Si and Mn, are desired for automotive applications in order to develop lightweight cars with sufficient strength. In this case, oxidation layer monitoring and control on the steel surface is necessary to guarantee high surface wettability of those steels in galvanizing. Oxidation layer measurement using visible and near infrared reflectance spectrum is one of the promising techniques to accomplish the purpose due to high accuracy with sufficient robustness and reliability. This paper describes research results of oxidation layer measurement employing reflectance spectroscopy in visible and near infrared region. The simulation result considering the refractive indexes of FeO and pure iron is obtained. An experimental setup employing a halogen lamp, two delivery fibers, detection probe, and two spectrometers covering ultraviolet (UV) and visible (VIS) to near infrared (NIR) spectral regions is also fabricated in the laboratory. The experimental result shows a good agreement to the calculation. A proto-type system for on-line measurement was fabricated and its performance was tested in the pilot plant.
Starting Page	1279
Ending Page	1282
File Size	508417
Page Count	4
File Format	PDF
ISBN	9781457708350
ISSN	20937121
e-ISBN	9788993215038
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-26
Publisher Place	Korea (South)
Access Restriction	Subscribed
Rights Holder	ICROS
Subject Keyword	Reflectivity Optical fibers high strength steel Wavelength measurement Area measurement Optical variables measurement oxidation layer measurement Steel pre-oxidation reduction reflectance spectroscopy
Content Type	Text
Resource Type	Article

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