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http://dx.doi.org/10.4313/JKEM.2018.31.3.160

Fabrication and Application of Palladium Coated Fiber-Optic Hydrogen Detection Sensor  

Kim, Kwang Taek (Department of Electronics Engineering, Honam University)
Lee, Sang Won (Department of Electronics Engineering, Honam University)
Kim, Dong Geun (Department of Electronics Engineering, Honam University)
Choi, Nu Ri (Department of Electronics Engineering, Honam University)
Lee, Jong Ryeok (Department of Electronics Engineering, Honam University)
Baik, Se Jong (SJ Photonics Co., Ltd.)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.31, no.3, 2018 , pp. 160-164 More about this Journal
Abstract
We have proposed a hydrogen detection sensor based on a Pd (palladium)-coated, single-mode, optical fiber. The experimental results demonstrated that the sensor could detect hydrogen in air as well as in insulation oil. The influence of Pd film thickness and environmental temperature on response time and sensitivity was analyzed. The reflected optical power at the optical-fiber/Pd interface decreased as the concentration of hydrogen increased, in both air and the insulation oil. The sensor showed 0.75 dB of optical power variation when the concentration of dissolved hydrogen was saturated in the insulation oil.
Keywords
Hydrogen sensor; Single mode optical fiber; Palladium film; Insulation oil;
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