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Proceedings Paper

The detection and identification of selected lube base oil using terahertz time-domain spectroscopy
Author(s): Tian Lu; Qing-li Zhou; Bin Jin; Kun Zhao; Song-qing Zhao; Cun-lin Zhang
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Paper Abstract

Using the terahertz time-domain spectroscopy (THz-TDS), the frequency-dependent absorption coefficient(s) and refractive index (indices) of selected lube base oil (LBO) were extracted in the spectral range of 0.3-1.6 THz. The selected LBO was also characterized by near-infrared spectrum. The experimental results reveal that LBO is more sensitive in the THz range than near-infrared, and the different viscosity index of LBO can be identified according to their different spectral features in THz range. Due to better repeatability, shorter testing time, and easy operation, THz- TDS can be used as a complementary for identifying the chemical composition of LBO.

Paper Details

Date Published: 4 August 2009
PDF: 8 pages
Proc. SPIE 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications, 738513 (4 August 2009); doi: 10.1117/12.835675
Show Author Affiliations
Tian Lu, China Univ. of Petroleum (China)
Qing-li Zhou, Capital Normal Univ. (China)
Bin Jin, Capital Normal Univ. (China)
Kun Zhao, China Univ. of Petroleum (China)
Song-qing Zhao, China Univ. of Petroleum (China)
Cun-lin Zhang, Capital Normal Univ. (China)


Published in SPIE Proceedings Vol. 7385:
International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications
X.-C. Zhang; James M. Ryan; Cun-lin Zhang; Chuan-xiang Tang, Editor(s)

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