Preliminary study on the stability of highly sensitive fiber Bragg grating temperature sensors [对高灵敏光纤光栅温度传感器的稳定性的初探]

Li, Kuo, Zhou, Zhen-an, Liu, Ai-chun, & Ye, Xiao-ping (2010) Preliminary study on the stability of highly sensitive fiber Bragg grating temperature sensors [对高灵敏光纤光栅温度传感器的稳定性的初探]. Progressing in Geophysics [地球物理学进展], 25(6), pp. 2204-2208.

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As a novel sensitive element and due to its advantages of immunity to electrical interference, distributed measurement, etc., fiber Bragg grating (FBG) has been researched widely. To realize the substitution of high accurate electronic temperature sensors, high sensitive FBG temperature sensors can be made by taking advantage of its characters of being sensitive to both temperature and strain. Although there are reports about high sensitive FBG temperature sensors, however, few about their stability have been done. We manufactured a high sensitive FBG temperature sensor, and put it together with an average FBG temperature sensor and an electronic crystal temperature sensor into a stainless steel container filled by water to observe the room temperature change. By comparing their results in two weeks, we have found out that: although the high sensitive FBG temperature sensor is in much better agreement with the electronic crystal sensor than the average FBG sensor is, it has occurred some small drifts. Because the drifts appeared in the process of further pulling the FBG, it might be a result of the slip of the FBG fixing points. This contributes some good experiences to the application of FBG in high accuracy temperature measurement.

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ID Code: 58303
Item Type: Journal Article
Refereed: Yes
Additional Information: Names of authors in Chinese: 李阔,周振安,刘爱春,叶晓平
DOI: 10.3969/j.issn.1004-2903.2010.06.044
ISSN: 1004-2903
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2012 Progressing in Geophysics
Deposited On: 18 Mar 2013 04:20
Last Modified: 25 Jul 2013 01:40

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