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Proceedings Paper

Characterization of gramineous forage varieties using terahertz time-domain spectroscopy
Author(s): Fang Wang; Hui Ren; Hong Y. Xia; Jing F. Zhao; Shuai Guo; Ri M. Bao
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Paper Abstract

This article contains information about using Terahertz Time-Domain Spectroscopy (THz-TDS) and Fourier-Transform Infrared Spectroscopy (FTIRS) over the spectral region of 0.1− 3 THz for distinguishing and identifying three kinds of gramineous forage. The optical parameters such as refractive index, absorption coefficient and dielectric constant are obtained, which show that the spectrum of different forage varieties in the effective terahertz frequency range is different, and the absorption coefficient is monotonically increasing in the range of 0.2-1.4THz. The average refractive index and dielectric constant of the forage samples are located at the range of 1.5-1.8 and 2.3-3.0, respectively. And curves showed that there was a good discrimination between forage varieties. The study demonstrates that terahertz spectroscopy technique can be useful identification and diagnostic tool, which provides rapid, nondestructive discrimination of forage varieties.

Paper Details

Date Published: 1 November 2016
PDF: 6 pages
Proc. SPIE 10157, Infrared Technology and Applications, and Robot Sensing and Advanced Control, 101572E (1 November 2016); doi: 10.1117/12.2246831
Show Author Affiliations
Fang Wang, China University of Petroleum (China)
Hui Ren, China University of Petroleum (China)
Hong Y. Xia, The Grassland Workstation of the Inner Mongolia Region (China)
Jing F. Zhao, The Grassland Workstation of the Inner Mongolia Region (China)
Shuai Guo, Beijing Key Lab. of Optical Detection Technology for Oil and Gas (China)
China Petroleum and Chemical Industry Federation (China)
China Univ. of Petroleum (China)
Ri M. Bao, Beijing Key Lab. of Optical Detection Technology for Oil and Gas (China)
China Petroleum and Chemical Industry Federation (China)
China Univ. of Petroleum (China)


Published in SPIE Proceedings Vol. 10157:
Infrared Technology and Applications, and Robot Sensing and Advanced Control

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