太赫兹科学与电子信息学报2024，Vol.22Issue(3)：296-302,7.DOI:10.11805/TKYDA2022164
反射式THz-TDS用于轨道交通典型液体安检的实验
Reflective Terahertz Time-Domain Spectroscopy for security inspection of typical liquids in railway transportation
徐利民 1吴衡 2王涛 2程良伦 2秦玉文1
作者信息
- 1. 广东工业大学信息工程学院,广东番禺 510006||广东工业大学先进光子技术研究所,广东番禺 510006||广东省信息光子技术重点实验室,广东番禺 510006
- 2. 广东省信息物理融合系统重点实验室,广东番禺 510006
- 折叠
摘要
Abstract
Speed and accuracy must both be taken into consideration when using Terahertz Time-Domain Spectroscopy(THz-TDS)for security inspection of flammable and explosive contraband liquids in railway transportation.Due to speed limitation,the exact comparison of the precise fingerprint location between testing results and database,which is the common method adopted in laboratory analysis,cannot be directly utilized for the security inspection of large passenger flow.The reflective terahertz time-domain spectroscopy data for typical liquids in railway transportation is acquired under standard temperature,pressure,and normal humidity level(25 ℃,RH 60％).The categorized time-domain database for non-flammable and non-explosive liquids,flammable and explosive liquids,and strong acid,is established.Based on the database,the typical time-domain pulse patterns can be classified into four categories,namely terahertz time domain spectroscopy with obvious secondary pulse,minor secondary pulse,no secondary pulse and obvious negative secondary pulse.According to terahertz time domain characteristics,rapid detection with better than 80％of accuracy is achieved through classification decision model.关键词
太赫兹时域光谱/液体检测/轨道交通安检Key words
Terahertz Time-Domain Spectroscopy/liquid testing/railway station inspection分类
信息技术与安全科学引用本文复制引用
徐利民,吴衡,王涛,程良伦,秦玉文..反射式THz-TDS用于轨道交通典型液体安检的实验[J].太赫兹科学与电子信息学报,2024,22(3):296-302,7.
