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Characteristics of a Fiber Bragg Grating Temperature Sensor Using the Thermal Strain of an External Tube

Title
Characteristics of a Fiber Bragg Grating Temperature Sensor Using the Thermal Strain of an External Tube
Authors
Lee, Cherl-HeeLee, JonghunKim, Min-KukKim, Kwang Taek
DGIST Authors
Lee, Cherl-Hee; Lee, Jonghun
Issue Date
2011-11
Citation
Journal of the Korean Physical Society, 59(5), 3188-3191
Type
Article
Article Type
Article
Keywords
Enhanced SensitivityExternal TubeFiber Bragg GratingSENSITIVITYTemperature SensorThermal Strain
ISSN
0374-4884
Abstract
The characteristics of a fiber Bragg grating (FBG) temperature sensor using thermal expansion of an external tube is presented. For enhancement of the temperature sensitivity of a bare FBG fiber, both sides of the FBG fiber were glued with epoxy to a cylindrical ceramic tube as an external tube and. pulled due to the thermal expansion of the cylindrical ceramic tube, which was made of hard, fracture-tough Zirconia (ZrO(2)) with higher thermal expansion coefficient. The presented FBG sensor was heated on the surface of the hot plate at temperature from -5 degrees C to 100 degrees C and had a response time of 6 seconds/degrees C. The temperature sensitivity of the fabricated FBG temperature sensor was improved 2.84 times when compared to that of a bare FBG fiber. The coupling characteristic of the fabricated FBG temperature sensor was analyzed by using coupled-mode theory.
URI
http://hdl.handle.net/20.500.11750/3430
DOI
10.3938/jkps.59.3188
Publisher
Korean Physical Society
Related Researcher
Files:
There are no files associated with this item.
Collection:
Convergence Research Center for Future Automotive Technology1. Journal Articles
Division of IoT∙Robotics Convergence Research1. Journal Articles


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