Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017166801) DEVICE AND METHOD FOR DISTRIBUTED STRAIN TEMPERATURE SIMULTANIOUS MEASUREMENT BASED ON OPTICAL FREQUENCY DOMAIN REFLECTION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/166801 International Application No.: PCT/CN2016/103519
Publication Date: 05.10.2017 International Filing Date: 27.10.2016
IPC:
G01D 5/353 (2006.01) ,G01B 11/16 (2006.01)
G PHYSICS
01
MEASURING; TESTING
D
MEASURING 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
5
Mechanical 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
26
using optical means, i.e. using infra-red, visible or ultra-violet light
32
with attenuation or whole or partial obturation of beams of light
34
the beams of light being detected by photocells
353
influencing the transmission properties of an optical fibre
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11
Measuring arrangements characterised by the use of optical means
16
for measuring the deformation in a solid, e.g. optical strain gauge
Applicants:
天津大学 TIANJIN UNIVERSITY [CN/CN]; 中国天津市 南开区卫津路92号 No. 92 Weijin Road, Nankai District Tianjin 300072, CN
Inventors:
丁振扬 DING, Zhenyang; CN
杨迪 YANG, Di; CN
刘铁根 LIU, Tiegen; CN
杜阳 DU, Yang; CN
徐哲茜 XU, Zhexi; CN
刘琨 LIU, Kun; CN
江俊峰 JIANG, Junfeng; CN
Agent:
天津市北洋有限责任专利代理事务所 BEI&OCEAN; 中国天津市 南开区鞍山西道时代公寓A座603室 Bld. A Ste 603, Time Plaza West An-shan Road, Nankai District Tianjin 300193, CN
Priority Data:
201610190033.629.03.2016CN
Title (EN) DEVICE AND METHOD FOR DISTRIBUTED STRAIN TEMPERATURE SIMULTANIOUS MEASUREMENT BASED ON OPTICAL FREQUENCY DOMAIN REFLECTION
(FR) DISPOSITIF ET PROCÉDÉ DE MESURE DISTRIBUÉE SIMULTANÉE DE TEMPÉRATURE ET D'EFFORT BASÉE SUR UNE RÉFLEXION DANS LE DOMAINE FRÉQUENTIEL OPTIQUE
(ZH) 基于光频域反射的分布式应变温度同时测量装置及方法
Abstract:
(EN) A system and a method for distributed strain temperature measurement based on optical frequency domain reflection, the system comprising: a tunable laser (1), a 1:99 light beam splitter (4), a main interferometer system (33), a light source phase monitoring system (34) based on an auxiliary interferometer and a computer processing unit (11); the main interferometer system (33) comprises two Mach-Zehnder interferometers and uses two kinds of optical fibers with cladding of different diameters arranged together, as sensor fibers (15, 32); since the optical fibers with cladding of different diameters have different temperature and strain coefficients, the temperature and strain values, at the time when the temperature and the strain vary simultaneously, may be obtained utilizing matrix computation, achieving the effect of removing temperature strain, sensing cross sensitivity in optical frequency domain reflection.
(FR) L'invention concerne un système et un procédé permettant une mesure distribuée de température et d'effort sur la base d'une réflexion dans le domaine fréquentiel optique, le système comprenant : un laser accordable (1), un diviseur de faisceau de lumière 1:99 (4), un système d'interféromètre principal (33), un système de surveillance de phase de source de lumière (34) basé sur un interféromètre auxiliaire et une unité de traitement informatique (11) ; le système d'interféromètre principal (33) comprend deux interféromètres de Mach-Zehnder et utilise deux types de fibres optiques ayant des gaines de différents diamètres agencées ensemble, en tant que fibres de capteur (15, 32) ; comme les fibres optiques ayant des gaines de différents diamètres ont des coefficients de température et d'effort différents, les valeurs de température et d'effort, au moment où la température et l'effort varient simultanément, peuvent être obtenues en utilisant un calcul matriciel, ce qui permet d'obtenir l'effet d'élimination de l'effort de température, et de détecter une sensibilité croisée en réflexion dans le domaine fréquentiel optique.
(ZH) 一种基于光频域反射的分布式应变温度测量系统和方法,系统包括可调谐激光器(1)、1:99光分束器(4)、主干涉仪系统(33)、基于辅助干涉仪的光源相位监测系统(34)和计算机处理单元(11);其中主干涉仪系统(33)包括两个马赫曾德尔干涉仪,采用不同直径包层的两种光纤并列在一起作为传感光纤(15,32),由于不同直径包层的光纤温度、应变系数不同,利用矩阵运算可以得到在温度应变同时变化的温度和应变值,实现了消除光频域反射中温度应变传感交叉敏感的效果。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)