Affiliation:
1. Beijing Engineering Research Centre of Industrial Spectrum Imaging
2. China Ship Research and Development Academy
3. University of Science and Technology Beijing
Abstract
A quantitative analysis method for corrosion products based on
terahertz spectroscopy is proposed in this paper. Mixture samples
consisting of three major corrosion products (magnetite, hematite, and
goethite) were prepared in 51 different concentrations. The refractive
index spectra measured by terahertz time-domain spectroscopy were
projected to the 2D score diagram by performing principal component
analysis. The Euclidean distances between the mixtures and pure
analyte on the diagram were used to build a concentration prediction
model. The results indicate that the established model can precisely
predict the concentration of magnetite, which is essential for a
stability evaluation of the corrosion system.
Funder
National Key Research and Development
Program of China
National Natural Science Foundation of
China
Fundamental Research Funds for the
Central Universities
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
5 articles.
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