Title :
The study of enhancing temperature sensitivity for FBG temperature sensor
Author :
Li, Wei ; Li, Yong-wei ; Han, Xing-de ; Yu, Guo-qing
Author_Institution :
Coll. of Electr. Eng. & Inf. Sci., Hebei Univ. of Sci. & Technol., Shijiazhuang, China
Abstract :
In this paper, the basic sensing principle of fiber Bragg grating (FBG) temperature sensor is introduced, and the general packaging methods are showed. On that basis, a new method of packaging FBG is advanced, which increases the thermal sensitivity coefficient and eliminates the impact of stress. Through experiments, the thermal characteristics and stress effect of the naked FBG and the packaged FBG are analyzed, the results show that the trend line of the packaged FBG has good linearity, and the method basically eliminates the stress effect, the sensor can be used accurately to monitor states of the thermal equipments, and the thermal range sensed is from -15degC to 200degC.
Keywords :
Bragg gratings; fibre optic sensors; optical fibres; packaging; temperature sensors; thermo-optical effects; FBG temperature sensor; fiber Bragg grating; general packaging method; stress effect; temperature -15 degC to 200 degC; thermal sensitivity coefficient; Bragg gratings; Capacitive sensors; Fiber gratings; Optical fiber sensors; Packaging machines; Sensor phenomena and characterization; Temperature sensors; Thermal loading; Thermal sensors; Thermal stresses; Experimental research; Fiber bragg grating; Increase temperature-sensitivity technology; packaging;
Conference_Titel :
Machine Learning and Cybernetics, 2009 International Conference on
Conference_Location :
Baoding
Print_ISBN :
978-1-4244-3702-3
Electronic_ISBN :
978-1-4244-3703-0
DOI :
10.1109/ICMLC.2009.5212640
