SIMULTANEOUS MEASUREMENT OF FORCE AND TEMPERATURE BASED ON A HALF CORRODED FBG

被引：15
作者：
Zhou, Wenjun [1 ]
Zhao, Chun-Liu [1 ]
Dong, Xinyong [1 ]
Zhang, Shuqin [1 ]
Chan, Chi Chiu [2 ]
Shum, Ping [3 ]
机构：
[1] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Peoples R China
[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 639798, Singapore
[3] Nanyang Technol Univ, Network Technol Res Ctr, Singapore 637553, Singapore
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2010年 / 52卷 / 09期
基金：
中国国家自然科学基金;
关键词：
force sensing head; half corroded FBG; simultaneous measurement; temperature-independent; FIBER BRAGG GRATINGS; STRAIN-MEASUREMENT; SENSORS; DISCRIMINATION;
D O I：
10.1002/mop.25397
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A simple single fiber Bragg grating (FBG)-based force sensing head is proposed, in which half of the FBG is thinned through chemical corrosion with hydrofluoric acid so that different force sensitivities are achieved from the two grating halves, while their temperature sensitivities remain the same. The initial single Bragg reflection peak of the FRG splits into two, whose wavelengths are sensitive to both force and temperature, but the separation of their wavelengths is determined only by the applied force. As a result, simultaneous measurement of force and temperature are realized by measuring wavelengths of the two peaks. In the experiment, sensitivities of 0.784 nmIN and 9.7 pm/degrees C are achieved for force and temperature, respectively. And the corresponding resolutions are 0.013 N and 103 degrees C, limited by the wavelength measurement resolution, 0.01 nm, of the employed optical spectrum analyzer. PACS: 42.81.Pa, 42.81.-i. (C) 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 2020-2023, 2010; Published online in Wiley InterScience (www.interscience. wiley.com). DOI 10.1002/mop.25397
引用
收藏
页码：2020 / 2023
页数：4
相关论文
共 9 条
[1]   Simultaneous measurement of strain and temperature using Bragg gratings written in germanosilicate and boron-codoped germanosilicate fibers [J].
Cavaleiro, PM ;
Araújo, FM ;
Ferreira, LA ;
Santos, JL ;
Farahi, F .
IEEE PHOTONICS TECHNOLOGY LETTERS, 1999, 11 (12) :1635-1637
[2]   Simultaneous measurement of temperature and strain using fibre Bragg gratings and Brillouin scattering [J].
Davis, MA ;
Kersey, AD .
IEE PROCEEDINGS-OPTOELECTRONICS, 1997, 144 (03) :151-155
[3]   Simple sensing head geometry using fibre Bragg gratings for strain-temperature discrimination [J].
Frazao, O. ;
Marques, L. ;
Marques, J. M. ;
Baptista, J. M. ;
Santos, J. L. .
OPTICS COMMUNICATIONS, 2007, 279 (01) :68-71
[4]   Applications of fiber optic grating technology to multi-parameter measurement [J].
Frazao, O ;
Ferreira, LA ;
Araújo, FM ;
Santos, JL .
FIBER AND INTEGRATED OPTICS, 2005, 24 (3-4) :227-244
[5]   Simultaneous independent temperature and strain measurement using in-fibre Bragg grating sensors [J].
James, SW ;
Dockney, ML ;
Tatam, RP .
ELECTRONICS LETTERS, 1996, 32 (12) :1133-1134
[6]   Use of dual-grating sensors formed by different types of fiber Bragg gratings for simultaneous temperature and strain measurements [J].
Shu, XW ;
Zhao, DH ;
Zhang, L ;
Bennion, I .
APPLIED OPTICS, 2004, 43 (10) :2006-2012
[7]   Dependence of temperature and strain coefficients on fiber grating type and its application to simultaneous temperature and strain measurement [J].
Shu, XW ;
Liu, Y ;
Zhao, DH ;
Gwandu, B ;
Floreani, F ;
Zhang, L ;
Bennion, I .
OPTICS LETTERS, 2002, 27 (09) :701-703
[8]   Dual measurement of strain and temperature using the combination of Er3+-doped fibre fluorescence lifetime and a fibre Bragg grating [J].
Wade, SA ;
Forsyth, DI ;
Guofu, Q ;
Chen, X ;
Chuan, TS ;
Yong, W ;
Sun, T ;
Grattan, KTV .
MEASUREMENT & CONTROL, 2001, 34 (06) :175-178
[9]   DISCRIMINATION BETWEEN STRAIN AND TEMPERATURE EFFECTS USING DUAL-WAVELENGTH FIBER GRATING SENSORS [J].
XU, MG ;
ARCHAMBAULT, JL ;
REEKIE, L ;
DAKIN, JP .
ELECTRONICS LETTERS, 1994, 30 (13) :1085-1087
1