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Machine translation
1. (WO2009136339) A METHOD TO MAKE HIGH SENSITIVE FIBER BRAGG GRATING TEMPERATURE SENSORS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/136339    International Application No.:    PCT/IB2009/051802
Publication Date: 12.11.2009 International Filing Date: 04.05.2009
IPC:
G01K 11/32 (2006.01), G02B 6/34 (2006.01), G01D 3/028 (2006.01)
Applicants: INSTITUTE OF CRUSTAL DYNAMICS, CHINA EARTHQUAKE ADMINISTRATION [CN/CN]; Anning zhuang Road No.1, Haidian district Beijing 100085 (CN) (For All Designated States Except US).
BEIJING PI-OPTICS CO., LTD [CN/CN]; Anning zhuang Road No.1, Haidian district Beijing 100085 (CN) (For All Designated States Except US).
KUO LI, Kuo [CN/CN]; (CN) (For US Only)
Inventors: KUO LI, Kuo; (CN).
KUO LI, Kuo; .
ZHEN'AN ZHOU, Zhen'an; .
XIAOPING YE, Xiaoping; (CN).
AICHUN LIU, Aichun; (CN).
YONGGEN WANG, Yonggen;
Priority Data:
2008101057887 05.05.2008 CN
Title (EN) A METHOD TO MAKE HIGH SENSITIVE FIBER BRAGG GRATING TEMPERATURE SENSORS
(FR) PROCÉDÉ DE FABRICATION DE CAPTEURS DE TEMPÉRATURE DE GRANDE SENSIBILITÉ À RÉSEAUX DE BRAGG SUR FIBRE
Abstract: front page image
(EN)A method to make high sensitive fiber Bragg grating temperature sensors, composing of a fiber Bragg grating and two metals different in the coefficient of thermal expansion, specialized in for controlling its work temperature, the fiber Bragg grating is pre-relaxed Δd = [α1 L - α2 (L — d)](Ts — Tr), where α1 and α2 are the CTE of metal A and metal B, respectively, L is the length of metal A, d is the distance between the two mounting points, Ts is the temperature where the sensor starts to work, and Tr is the room temperature
(FR)L'invention concerne un procédé de fabrication de capteurs de température de grande sensibilité à réseaux de Bragg sur fibre, lesdits capteurs comprenant un réseau de Bragg sur fibre et deux métaux à coefficients de dilatation thermique différents. Ledit procédé est caractérisé en ce que, pour commander la température de travail, le réseau de Bragg sur fibre subit une pré-relaxation conforme à Δd = [α1 L - α2 (L — d)](Ts — Tr), α1 et α2 étant les coefficients de dilatation thermique du métal A et du métal B, respectivement, L étant la longueur de métal A, d étant la distance séparant les deux points de montage, Ts étant la température à laquelle le capteur commence à fonctionner et Tr étant la température ambiante.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)