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Enhanced temperature sensitivity of fiber Bragg grating temperature sensor using thermal expansion of copper tube

✍ Scribed by Cherl-Hee Lee; Min-Kuk Kim; Kwang Tack Kim; Jonghun Lee

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
510 KB
Volume
53
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

The temperature sensitivity of fiber Bragg grating (FBG) temperature sensor is enhanced when using a copper tube to jacket of the FBG.Both sides of the FBG are glued with epoxy to cylindrical ferrules tubes that in turn is inserted and glued to a cylindrical copper tube. As the high thermal expansion coefficient of the cylindrical copper tube pulls both sides of the FBG, the temperature sensitivity is improved 3.3‐fold when compared to that of a bare FBG. Β© 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26032

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