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1. WO2022006702 - CONTINUOUS SPATIAL SYNCHRONIZATION MONITORING DEVICE FOR OCEAN TEMPERATURE AND PRESSURE

Publication Number WO/2022/006702
Publication Date 13.01.2022
International Application No. PCT/CN2020/100404
International Filing Date 06.07.2020
IPC
G01D 5/353 2006.1
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26using optical means, i.e. using infra-red, visible or ultra-violet light
32with attenuation or whole or partial obturation of beams of light
34the beams of light being detected by photocells
353influencing the transmission properties of an optical fibre
G01D 21/02 2006.1
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
21Measuring or testing not otherwise provided for
02Measuring two or more variables by means not covered by a single other subclass
CPC
G01D 21/02
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
21Measuring or testing not otherwise provided for
02Measuring two or more variables by means not covered by a single other subclass
G01D 5/353
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light
32with attenuation or whole or partial obturation of beams of light
34the beams of light being detected by photocells
353influencing the transmission properties of an optical fibre
Applicants
  • 山东省科学院 SHANDONG ACADEMY OF SCIENCES [CN]/[CN]
Inventors
  • 王英龙 WANG, Yinglong
  • 王昌 WANG, Chang
  • 倪家升 NI, Jiasheng
  • 尚盈 SHANG, Ying
  • 王晨 WANG, Chen
  • 刘小会 LIU, Xiaohui
  • 宋志强 SONG, Zhiqiang
  • 王英英 WANG, Yingying
Agents
  • 北京弘权知识产权代理事务所(普通合伙) CHINABLE IP
Priority Data
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) CONTINUOUS SPATIAL SYNCHRONIZATION MONITORING DEVICE FOR OCEAN TEMPERATURE AND PRESSURE
(FR) DISPOSITIF DE SURVEILLANCE DE SYNCHRONISATION SPATIALE CONTINUE, DESTINÉ À LA TEMPÉRATURE ET LA PRESSION OCÉANIQUES
(ZH) 海洋温度及压力的连续空间同步监测装置
Abstract
(EN) The present application provides a continuous spatial synchronization monitoring device for an ocean temperature and pressure. Broadband light output by a broadband light source is converted into broadband pulsed light by using a pulse controller; then, the broadband pulsed light is demodulated by using a phase-shifting grating unit to obtain pulsed light having multiple different wavelengths; the pulsed light is incident to a sensing optical fiber in seawater by means of a wavelength division multiplexer; according to a Rayleigh scattering principle, backward Rayleigh scattering light returns to a control demodulation module by means of the wavelength division multiplexer; the control demodulation module performs demodulation on the backward Rayleigh scattering light, analyzes a dynamic pressure according to a phase change of a light signal, and analyzes a seawater temperature according to a wavelength change, thereby simultaneously monitoring both the pressure and temperature. According to the present embodiment, multi-parameter continuous spatial measurement is achieved by means of distributed measurement based on the Rayleigh scattering principle, and a two-dimensional profile of space and temperature and pressure changes is formed, such that large-data-volume and multi-dimensional high-value ocean environment information can further be provided.
(FR) La présente invention concerne un dispositif de surveillance de synchronisation spatiale continue, destiné à la température et la pression océaniques. Une lumière à large bande émise par une source de lumière à large bande est convertie en lumière pulsée à large bande à l'aide d'un dispositif de commande d'impulsion ; puis, la lumière pulsée à large bande est démodulée à l'aide d'une unité de réseau de déphasage pour obtenir une lumière pulsée ayant de multiples longueurs d'onde différentes ; la lumière pulsée est incidente sur une fibre optique de détection dans l'eau de mer au moyen d'un multiplexeur par répartition en longueur d'onde ; selon un principe de diffusion Rayleigh, la lumière de rétrodiffusion Rayleigh retourne à un module de démodulation de commande au moyen du multiplexeur par répartition en longueur d'onde ; le module de démodulation de commande effectue une démodulation sur la lumière de rétrodiffusion Rayleigh, analyse une pression dynamique selon un changement de phase d'un signal lumineux, et analyse une température de l'eau de mer selon un changement de longueur d'onde, ce qui permet de surveiller simultanément à la fois la pression et la température. Selon le présent mode de réalisation, une mesure spatiale continue de multiples paramètres s'obtient au moyen d'une mesure distribuée basée sur le principe de diffusion Rayleigh, et un profil bidimensionnel de changements d'espace et de température et de pression est formé, de telle sorte que des informations d'environnement océanique, de grande valeur, multidimensionnelles et à grand volume de données peuvent être en outre fournies.
(ZH) 本申请提供了一种海洋温度及压力的连续空间同步监测装置,利用脉冲控制器将宽谱光源输出的宽谱光转换为宽谱脉冲光,然后,利用相移光栅单元将从宽谱脉冲光中解调出多个不同波长的脉冲光;上述脉冲光经波分复用器射入海水中的传感光纤,根据瑞利散射原理,后向瑞利散射光通过波分复用器返回控制解调模块,控制解调模块对上述后向瑞利散射光进行解调,根据光信号的相位变化解析动态压力、波长变化解析海水温度,从而达到两者同时监测。本实施例基于瑞利散射原理的分布式测量,实现多参数连续空间测量,形成空间与温度、压力变化的二维剖面,进而可以提供大数据量、多维度的高价值海洋环境信息。
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