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Proceedings Paper

Detection of iron corrosion by terahertz time-domain spectroscopy
Author(s): Hui Zhao; Di-bo Wu; Hong-lei Zhan; Qing Sun; Kun Zhao
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Paper Abstract

The iron tablets, which were exposed in salt spray with different periods, were investigated in the 0.2~2.0 THz using reflection-type terahertz time-domain spectroscopy (THz-TDS) in vacuum environment at room temperature. The sample signals are attenuated in comparison to the reference signals with increasing the corrosion time. The THz spectroscopy peak EP and reflectivity (R) of samples strongly depended on corrosion time t with EP ∝ t-1 and R ∝ t-1. The THz characteristics of iron sheets in salt spray indicate that reflection THz-TDS will contribute to the development of non-destructive testing of corrosion in pipelines.

Paper Details

Date Published: 5 November 2015
PDF: 5 pages
Proc. SPIE 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015, 97953J (5 November 2015); doi: 10.1117/12.2214316
Show Author Affiliations
Hui Zhao, China Univ. of Petroleum (China)
Di-bo Wu, China Univ. of Petroleum (China)
Hong-lei Zhan, China Univ. of Petroleum (China)
Qing Sun, National Institute of Metrology (China)
Kun Zhao, China Univ. of Petroleum (China)


Published in SPIE Proceedings Vol. 9795:
Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015
Shenggang Liu; Songlin Zhuang; Michael I. Petelin; Libin Xiang, Editor(s)

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