A fiber Bragg grating temperature sensor with adjustable sensitivity [一种灵敏度系数可调的光纤光栅温度传感器]

Li, Kuo & Zhou, Zhen-an (2009) A fiber Bragg grating temperature sensor with adjustable sensitivity [一种灵敏度系数可调的光纤光栅温度传感器]. Journal of Geodesy and Geodynamic [大地测量与地球动力学], 1, pp. 144-147.

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Abstract

As a novel sensing element, fiber Bragg grating (FBG) is sensitive to both temperature and strain. Basing on this character, high sensitivity FBG temperature sensor can be made. However, as a result of the strain limit of the fiber, the temperature range it can endure is quite narrow. This drawback limits its application and complicates its storage and transport. We design and manufacture a FBG temperature sensor with tunable sensitivity. By tuning its sensitivity, its temperature range is changed, which enlarges its application field, solves the problem of storage and transport, and brighten the future of FBG in temperature measurement. In experiment, by changing the fixing position of the bimetal we tuned the sensitivity of the high sensitivity FBG sensor to different values (-47 pm/℃,-97.7 pm/℃,-153.3 pm/℃).

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ID Code: 58307
Item Type: Journal Article
Refereed: Yes
Additional Information: Author's names in Chinese: 李阔 周振安
Additional URLs:
Keywords: sensor; fiber Bragg grating; sensitivity; temperature; changeable structure
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2009 Institute of Crustal Dynamics.
Deposited On: 19 Mar 2013 23:00
Last Modified: 23 Jul 2013 01:51

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