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浙江大学学报(工学版)
浙江大学学报(工学版)  2018, Vol. 52 Issue (3): 537-542    DOI: 10.3785/j.issn.1008-973X.2018.03.016
计算机与通信技术     
太赫兹技术在烟叶香型分类中的应用
李莹1, 严国锋1, 王煜1, 黄宇新2, 杜健祥2, 谢丽娟2, 何赛灵1
1. 浙江大学 光电科学与工程学院, 浙江 杭州 310058;
2. 浙江大学 生物系统工程与食品科学学院, 浙江 杭州 310058
Classification of tobacco aroma based on Terahertz time domain spectroscopy
LI Ying1, YAN Guo-feng1, WANG Yu1, HUANG Yu-xin2, DU Jian-xiang2, XIE Li-juan2, HE Sai-ling1
1. College of Optical Science and Engineering, Zhejiang University, Hangzhou 310058, China;
2. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
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摘要：

针对浓香型、中间型和清香型3种香型特征的烟叶，测定不同质量分数烟叶（烟叶与聚乙烯的混合物）的太赫兹透射光谱，并计算得到相应的太赫兹波段吸收系数和折射率谱线.结果发现，不同香型的烟叶对太赫兹时域信号会产生不同的延迟和衰减，所计算得到的吸收系数曲线和折射率曲线的变化规律和香气特征存在一一对应的关系.其中，烟叶香气浓郁程度与样本吸收系数呈正相关性，而与样本折射率呈现负相关性.本研究证实了其在烟叶质量评价方面应用的可能性.
Abstract:

Tobacco leaves with strong, middle, fresh scent were tested in the experiments. The transmission spectra of the tobacco samples with different mass fraction (the mixture of tobacco and polyethylene) were obtained, and the corresponding absorption coefficient and refractive index spectra were calculated. Results show that tobacco leaves with different aroma types will induce different time delays and attenuations on the Terahertz time-domain signal, and there is a corresponding relationship between the aroma types and the absorption coefficient and refractive index spectra. The tobacco aroma of the tested samples has a positive correlation with the absorption coefficient, and a negative correlation with the refractive index.
收稿日期: 2017-07-13 出版日期: 2018-09-11
CLC:  O433.4  
基金资助:

中国博士后科学基金资助项目（2015M571863）.
通讯作者: 严国锋,男,博士后.orcid.org/0000-0001-9611-726X.     E-mail: yanguofeng@zju.edu.cn
作者简介: 李莹(1989-),女,博士生,从事太赫兹检测研究.orcid.org/0000-0002-7924-1813.E-mail:liying_521@zju.edu.cn
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引用本文:

李莹, 严国锋, 王煜, 黄宇新, 杜健祥, 谢丽娟, 何赛灵. 太赫兹技术在烟叶香型分类中的应用[J]. 浙江大学学报(工学版), 2018, 52(3): 537-542.

LI Ying, YAN Guo-feng, WANG Yu, HUANG Yu-xin, DU Jian-xiang, XIE Li-juan, HE Sai-ling. Classification of tobacco aroma based on Terahertz time domain spectroscopy. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(3): 537-542.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2018.03.016    或    http://www.zjujournals.com/eng/CN/Y2018/V52/I3/537

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