Zeolite Thin Film-Coated Fiber Sensors Based on Fabry-Perot Interferometer for Detection of Chemical Vapors  

作　　者：Xiangping NING Chunliu ZHAO Feifei SHI Juan KANG 

机构地区：[1]Institute of Optoelectronic Technology, China Jiliang University, Hangzhou, 310018, China

出　　处：《Photonic Sensors》2015年第2期137-141,共5页光子传感器（英文版）

摘　　要：A novel zeolite-coated fiber sensors for detection of volatile organic compounds （VOCs） based on the Fabry-Perot interferometer was proposed and demonstrated. The sensor comprised a polycrystalline silicalite thin film grown up on the cleaved end face of a standard single-mode fiber. The inline Fabry-Perot cavity was composed by the end face of the single-mode fiber and the thin film. The sensor device operated by measuring the interference signal, which was a function of the amount of chemical vapor adsorption in its crystalline micro porous structure. Experimental results showed that the proposed VOC sensor worked well and the sensitivities were 2.78×10^-3dB/ppm when the concentration ranged from 350ppm to 2100ppm and 1.23×10^-3 dB/ppm when the concentration ranged from 2100ppm to 5250 ppm.A novel zeolite-coated fiber sensors for detection of volatile organic compounds （VOCs） based on the Fabry-Perot interferometer was proposed and demonstrated. The sensor comprised a polycrystalline silicalite thin film grown up on the cleaved end face of a standard single-mode fiber. The inline Fabry-Perot cavity was composed by the end face of the single-mode fiber and the thin film. The sensor device operated by measuring the interference signal, which was a function of the amount of chemical vapor adsorption in its crystalline micro porous structure. Experimental results showed that the proposed VOC sensor worked well and the sensitivities were 2.78×10^-3dB/ppm when the concentration ranged from 350ppm to 2100ppm and 1.23×10^-3 dB/ppm when the concentration ranged from 2100ppm to 5250 ppm.

关 键 词：Zeolite film volatile organic compound （VOC） sensor Fabry-Perot interferometer 

分 类 号：TQ424.25[化学工程] TP212[自动化与计算机技术—检测技术与自动化装置]