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Abstract
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Article Information:
A New Type of Fbg Sensor with High Temperature Sensitivity
Zhihui Liu, Hongqiang Li, Hongda Chen, Haijing Yang, Enbang Li and Kejia Wei
Corresponding Author: Hongqiang Li
Submitted: April 08, 2012
Accepted: April 25, 2012
Published: August 15, 2012 |
Abstract:
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A method of using polymer to encapsulate the bare FBG is proposed and implemented. The principle of the
increasing in sensitivity of FBG is introduced, a novel packaging material composed of 100 wt% unsaturated polyester,
2 wt% Methyl Ethyl Ketone Peroxide and 2 wt% cobalt naphthenate is realized. With the help of casting a model, FBG
is encapsulated. After establishing the experimental platform, the temperature sensitivity of the packaged FBG is also
analyzed. The comparison of the experimental results between the packaged FBG and the bare FBG shows that over the
temperature of 24-44ºC, the equivalent temperature sensitivity of the packaged FBG is 0.10387 nm/°C, which can be
increased by about 14.268 times as much as that of bare FBG and close to the theoretical values 0.108 nm/°C. The FBG
package material and technique is effective in the increasing of the temperature sensitivity, which is suitable for
applications where wavelength references for FBG sensor system with high temperature sensitivity is required, especially
in the measurement of human body temperature.
Key words: FBG, polymer package, temperature sensitivity, temperature sensitizing, , ,
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Cite this Reference:
Zhihui Liu, Hongqiang Li, Hongda Chen, Haijing Yang, Enbang Li and Kejia Wei, . A New Type of Fbg Sensor with High Temperature Sensitivity. Research Journal of Applied Sciences, Engineering and Technology, (16): 2890-2894.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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