Zhou Qian, Ning Tigang, Wen Xiaodong, Li Chao. A fiber Bragg grating sensor for temperature-stress simultaneous measurement[J]. Infrared and Laser Engineering, 2015, 44(3): 1024-1027.
Citation:
|
Zhou Qian, Ning Tigang, Wen Xiaodong, Li Chao. A fiber Bragg grating sensor for temperature-stress simultaneous measurement[J]. Infrared and Laser Engineering, 2015, 44(3): 1024-1027.
|
A fiber Bragg grating sensor for temperature-stress simultaneous measurement
- 1.
Key Lab of All Optical Network &Advanced Telecommunication Network,Beijing Jiaotong University,Beijing 100044,China
- Received Date: 2014-07-15
- Rev Recd Date:
2014-08-13
-
Abstract
Fiber Bragg grating(FBG) has been widely used in many fields for temperature, stress and other parameters measurement, but it has cross-sensitivity problem with temperature and stress. A dual cladding radius fiber Bragg grating sensor was presented, the FBG was divided into two halves which have different cladding radiuses, the cladding radius of one half(FBG1) was unchanged, and the cladding radius of the other half(FBG2) was decreased from 62.5 m to 40 m. Experimental results show that, FBG2 and FBG1 have same temperature sensitivities which are 10.4 pm/℃, but FBG2 and FBG1 have different stress sensitivities which are 1.12 pm/ue and 3.89 pm/ue respectively, the stress sensitivity of FBG2 is higher than FBG1 nearly 3.24 times. The initial single Bragg reflection peak split into two reflection peaks which respectively sensitive to temperature and stress, the wavelength difference between these two peaks only impact on stress. Through this sensor, it can distinguish center reflection wavelength shift caused by temperature and stress. The sensor has simple structure, small size, low-cost, and simple fabrication,and it be can widely used in various fields to achieve simultaneous measurement of temperature and stress.
-
References
[1]
|
Guan Bai'ou, Tam Hwayaw, Ho Siulau, et al. Simultaneous strain and temperature measurement using a single fiber Bragg grating[J]. Electron Lett, 2000, 36(12): 1018-1019. |
[2]
|
|
[3]
|
Xu Jianbo, Liu Yange, Wang Zhi, et al. Simultaneous force and temperature measurement using long-period grating written on the joint of a microstructured optical fiber and a single mode fiber[J]. Applied Optics, 2010, 49(3): 492-496. |
[4]
|
|
[5]
|
Alemohammad Hamid-R, Foroozmehr Ehsan, Cotten Bradley-S, et al. A dual-parameter optical fiber sensor for concurrent strain and temperature measurement: design, fabrication, packaging, and calibration[J]. Journal of Lightwave Technology, 2013, 31(8): 1198-1204. |
[6]
|
|
[7]
|
Dong Bo, Hao Jianhong, Liaw Chinyi, et al. Simultaneous strain and temperature measurement using a compact photonic crystal fiber inter-modal interferometer and a fiber Bragg grating[J]. Applied Optics, 2010, 49(32): 6232-6235. |
[8]
|
|
[9]
|
|
[10]
|
Qiu Weiwei, Cheng Xusheng, Luo Yanhua, et al. Simultaneous measurement of temperature and strain using a single Bragg grating in a few-mode polymer optical fiber[J]. Journal of Lightwave Technology, 2013, 31(14): 2419-2425. |
[11]
|
Edmon Chehura, James Stephen-W, Tatam Ralph-P. Temperature and strain discrimination using a single titled fiber Bragg grating[J]. Opt Commun, 2007, 275(2): 344-347. |
[12]
|
|
[13]
|
Shu Xuewen, Zhao Donghui, Zhang Lin, et al. Use of dual grating sensors formed by different types of fiber Bragg gratings for simultaneous temperature and strain measurements[J]. Applied Optics, 2004, 43(10): 2006-2012. |
-
-
Proportional views
-