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].Optoelectronics Letters,2016,12(6):413-416 Experimental research of optical fiber hydrogen gas sensing system based on palladium-silver alloy Author Name Affiliation CUI Lu-jun  School of Mechanical & Electronic Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China  ZHOU Gao-feng  School of Mechanical & Electronic Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China  LI Zheng-feng  School of Mechanical & Electronic Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China  CAO Yan-long  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. Hits: 3881 Download times: 0 View Full Text    Download reader