Analysis and Optimization of Thermodiffusion of an FBG Sensor in the Gas Nitriding Process

Tso-Sheng Hsieh; Yi-Chian Chen; Chia-Chin Chiang

doi:10.3390/mi7120227

Micromachines (Dec 2016)

Analysis and Optimization of Thermodiffusion of an FBG Sensor in the Gas Nitriding Process

Tso-Sheng Hsieh,
Yi-Chian Chen,
Chia-Chin Chiang

Affiliations

Tso-Sheng Hsieh: Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
Yi-Chian Chen: Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan
Chia-Chin Chiang: Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan

DOI: https://doi.org/10.3390/mi7120227
Journal volume & issue: Vol. 7, no. 12
p. 227

Abstract

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In this paper, we report the numerical calculations for a thermo-optical model and the temperature sensitivity of a fiber Bragg grating (FBG) sensor. The thermally-induced behaviors of a FBG sensor in the gas nitriding process were analyzed for temperatures ranging from 100–650 °C. The FBG consisted of properly chosen photosensitive fiber materials with an optimized thermo-optic coefficient. The experimental and optimized thermo-optic coefficient results were consistent in terms of temperature sensitivity. In these experiments, the temperature sensitivity of the FBG was found to be 11.9 pm/°C.

Published in Micromachines

ISSN: 2072-666X (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mechanical engineering and machinery
Website: https://www.mdpi.com/journal/micromachines

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