光电子快报(英文版), 2016, 12 (6): 413, Published Online: Oct. 12, 2017  

Experimental research of optical fiber hydrogen gas sensing system based on palladium-silver alloy

Author Affiliations
1 School of Mechanical & Electronic Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
2 School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
Abstract
A novel optical fiber hydrogen sensing system based on palladium (Pd) and sliver (Ag) is proposed. By direct current (DC) magnetron process, Pd/Ag alloy ultra-thin films were deposited on the substrate to eliminate the hydrogen embrittlement of sensor based on pure Pd. Several samples with different thin film thicknesses were fabricated at different substrate temperatures and tested in the optical fiber hydrogen sensor setup. We do a series of experiments for obtaining optimum sputtering parameters, such as optimum sputtering temperature and thickness of Pd/Ag alloy film. The humidity effect and reliability experiment for the optical fiber hydrogen gas sensor are reported in detail. The testing results demonstrate the Pd/Ag alloy is a promising material for optical fiber hydrogen gas sensor.

CUI Lu-jun, ZHOU Gao-feng, LI Zheng-feng, CAO Yan-long. Experimental research of optical fiber hydrogen gas sensing system based on palladium-silver alloy[J]. 光电子快报(英文版), 2016, 12(6): 413.

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