CUI Lu-jun,SHANG Hui-chao,ZHANG Gang,ZHAO Ze-xiang,ZHOU Jun.Optical fiber hydrogen sensor based on light reflection and a palladium-sliver thin film[J].Optoelectronics Letters,2011,7(4):249-252 Optical fiber hydrogen sensor based on light reflection and a palladium-sliver thin film Author Name Affiliation CUI Lu-jun  School of Mechanical & Electronic Engineering,Zhongyuan University of Technology；  SHANG Hui-chao  School of Mechanical & Electronic Engineering,Zhongyuan University of Technology；  ZHANG Gang  School of Mechanical & Electronic Engineering,Zhongyuan University of Technology；  ZHAO Ze-xiang  School of Mechanical & Electronic Engineering,Zhongyuan University of Technology；  ZHOU Jun  School of Mechanical & Electronic Engineering,Zhongyuan University of Technology；  Abstract:       Thin alloy films of palladium(Pd) and silver(Ag) are deposited onto glass substrates via the direct current(DC) magnetron technique.The hydrogen sensor probe consists of optical fiber bundle and Pd/Ag optical thin film.when the sensor is exposed to hydrogen,the refractive index of Pd/Ag optical thin layer will diminish and cause attenuation changes of the reflective light.It is observed that the thickness of Pd/Ag alloy layer can affect the hydrogen sensor signal.Under different substrate temper... Hits: 4146 Download times: 232 View Full Text    Download reader