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1. WO2020134846 - WATER VAPOR DETECTION SYSTEM BASED ON TERAHERTZ AND DETECTION METHOD

Publication Number WO/2020/134846
Publication Date 02.07.2020
International Application No. PCT/CN2019/121760
International Filing Date 28.11.2019
IPC
G01N 21/3586 2014.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3581using far infra-red light; using Terahertz radiation
3586by Terahertz time domain spectroscopy
CPC
G01N 21/3554
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3554for determining moisture content
G01N 21/3586
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3581using far infra-red light; using Terahertz radiation
3586by Terahertz time domain spectroscopy [THz-TDS]
Applicants
  • 深圳市华讯方舟太赫兹科技有限公司 SHENZHEN CCT THZ TECHNOLOGY CO., LTD. [CN]/[CN]
  • 华讯方舟科技有限公司 CHINA COMMUNICATION TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 徐利民 XU, Limin
  • 祁春超 QI, Chunchao
  • 唐莎娜 TANG, Shana
Agents
  • 深圳市威世博知识产权代理事务所(普通合伙) CHINA WISPRO INTELLECTUAL PROPERTY LLP.
Priority Data
201811612654.427.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) WATER VAPOR DETECTION SYSTEM BASED ON TERAHERTZ AND DETECTION METHOD
(FR) SYSTÈME DE DÉTECTION DE VAPEUR D'EAU TÉRAHERTZ ET PROCÉDÉ DE DÉTECTION
(ZH) 基于太赫兹的水蒸气检测系统及检测方法
Abstract
(EN)
Provided are a water vapor detection system (100) based on terahertz and detection method, the water vapor detection system (100) includes a laser (110), a terahertz emission unit (120), a vapor container (130) to be detected and a terahertz detection unit (140), the terahertz emission unit (120) and the terahertz detection unit (140) are oppositely arranged, the vapor container (130) to be detected is arranged between the terahertz emission unit (120) and the terahertz detection unit (140), and the vapor container (130) to be detected contains hot vapor; wherein, the laser (110) is used to emit pump light and detection light, the pump light is transmitted to the terahertz emission unit (120), so that the terahertz emission unit (120) radiates a terahertz wave and transmits it to the vapor container (130) to be detected, the detection light and the terahertz wave with water vapor information after passing through the vapor container (130) to be detected are transmitted to the terahertz detection unit (140), the terahertz detection unit (140) analyzes and processes the detection light and the terahertz wave to obtain the frequency domain spectrum of the water vapor around the vapor container (130) to be detected, thus, the detection of water vapor leakage of the vapor container (130) is realized.
(FR)
L'invention concerne un système de détection de vapeur d'eau (100) térahertz et un procédé de détection. Le système de détection de vapeur d'eau (100) comprend un laser (110), une unité d'émission térahertz (120), un récipient de vapeur (130) à détecter et une unité de détection térahertz (140), l'unité d'émission térahertz (120) et l'unité de détection térahertz (140) sont agencés de façon opposée, le récipient de vapeur (130) à détecter est disposé entre l'unité d'émission térahertz (120) et l'unité de détection térahertz (140), et le récipient de vapeur (130) à détecter contient de la vapeur chaude. Le laser (110) est utilisé pour émettre une lumière de pompage et une lumière de détection, la lumière de pompage étant émise à l'unité d'émission térahertz (120), de telle sorte que l'unité d'émission térahertz (120) rayonne une onde térahertz et l'émet au récipient de vapeur (130) à détecter, la lumière de détection et l'onde térahertz comprenant des informations de vapeur d'eau après avoir traversé le récipient de vapeur (130) à détecter sont émises à l'unité de détection térahertz (140), l'unité de détection térahertz (140) analyse et traite la lumière de détection et l'onde térahertz afin d'obtenir le spectre de domaine fréquentiel de la vapeur d'eau autour du récipient de vapeur (130) à détecter ; ainsi, la détection de fuite de vapeur d'eau du récipient de vapeur (130) est réalisée.
(ZH)
一种基于太赫兹的水蒸气检测系统(100)及检测方法,水蒸气检测系统(100)包括激光器(110)、太赫兹发射单元(120)、待检测蒸汽容器(130)以及太赫兹探测单元(140),太赫兹发射单元(120)和太赫兹探测单元(140)相对设置,待检测蒸汽容器(130)设置于太赫兹发射单元(120)和太赫兹探测单元(140)之间,且待检测蒸汽容器(130)内容纳有热蒸汽;其中,激光器(110)用于发射泵浦光和探测光,泵浦光传输至太赫兹发射单元(120),使得太赫兹发射单元(120)辐射出太赫兹波并传输至待检测蒸汽容器(130),探测光和经过待检测蒸汽容器(130)后的带有水蒸气信息的太赫兹波传输至太赫兹探测单元(140),太赫兹探测单元(140)对探测光和太赫兹波进行分析和处理以得到待检测蒸汽容器(130)周围水蒸气的频域光谱,从而实现对蒸汽容器(130)水蒸气泄露的检测。
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