A terahertz wave-based device and method for highly hazardous chemical detection

A terahertz detection and terahertz technology, which is applied in the field of environmental safety, can solve problems such as the inability to meet long-distance detection of high-risk chemicals, and achieve the effect of safety monitoring and early warning
CN108760673AActive Publication Date: 2018-11-06TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2018-11-06

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Abstract

The invention relates to a terahertz wave-based device for highly hazardous chemical detection. The device includes a terahertz wave generation unit, a terahertz wave transmitting and receiving unit,and an echo wave analysis unit. The terahertz wave generation unit is used for generating terahertz detection signals, terahertz reference signals and terahertz local oscillation signals. The terahertz wave transmitting and receiving unit is used for transmitting the terahertz detection signals and the terahertz reference signals to a highly hazardous chemical to be detected and receiving terahertz echo wave signals carrying information of the highly hazardous chemical to be detected. The echo wave analysis unit is used for analyzing the terahertz echo wave signals and the terahertz local oscillation signals to obtain information of the highly hazardous chemical to be detected. Through the device, remote on-site detection of the highly hazardous chemical is achieved, thus performing rapid,accurate and safe monitoring and early warning for the highly hazardous chemical.
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Description

technical field

[0001] The invention relates to the field of environmental safety, in particular to a device and method for detecting high-risk chemicals based on terahertz. Background technique

[0002] The release or leakage of high-risk chemicals such as chemical weapons can form aerosol clouds and spread rapidly, causing fatal damage to humans and the environment on a large scale. Fast and accurate monitoring and early warning of high-risk chemicals will provide important data for subsequent protection, destruction, decontamination, evacuation and other work, greatly reducing damage.

[0003] At present, the main methods for high-risk chemicals are gas chromatography-mass spectrometry, ion mobility, nuclear magnetic resonance, ultraviolet laser-induced fluorescence detection, and surface-enhanced Raman scattering spectroscopy. Among them, gas chromatography-mass spectrometry, ion migration method, nuclear magnetic resonance method, and ultraviolet laser-induced fluoresc...

Claims

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