Device and method for terahertz-based detection of high-hazardous chemicals

A terahertz detection and terahertz technology, applied in the field of environmental safety, can solve problems such as the inability to detect high-risk chemicals at a distance, and achieve the effect of safety monitoring and early warning

Active Publication Date: 2020-01-21
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Based on this, it is necessary to provide a terahertz-based high-risk chemical detection device and method for the problem that traditional technologies cannot meet the long-distance detection of on-site high-risk chemicals.

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  • Device and method for terahertz-based detection of high-hazardous chemicals

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[0030] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0031] In one example, please also refer to figure 1 , figure 1 An embodiment provides a terahertz-based high-risk chemical detection device 100 . In one embodiment, the terahertz-based high-risk chemical detection device 100 includes a terahertz wave generation unit 101 , a terahertz wave transceiver unit 102 and an echo analysis unit 103 .

[0032] In one of the embodiments, the terahertz wave generation unit 101 is used to generate a terahertz detection signal, a terahertz reference signal and a terahertz local oscillator signal, and send the terahertz detection signa...

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Abstract

A terahertz-based device (100) for detecting high-risk chemicals, the device comprising a terahertz wave generating unit (101), a terahertz wave transceiving unit (102) and an echo analysis unit (103); the terahertz wave generating unit (101) is used for generating a terahertz detection signal, a terahertz reference signal and a terahertz local oscillation signal; the terahertz wave transceiving unit (102) is used for transmitting the terahertz detection signal and the terahertz reference signal to a high-risk chemical to be detected, and receiving a terahertz echo signal carrying information of the high-risk chemical to be detected; and the echo analysis unit (103) is used for analyzing the terahertz echo signal and the terahertz local oscillation signal.

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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/3586G01N21/01
CPCG01N21/01G01N21/3586
Inventor 郑小平邓晓娇耿华
Owner TSINGHUA UNIV
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