Fabrication of Relative Humidity Optical Fiber Sensor Based on Nafion-Crystal Violet Sensing Film
JIN Xing-liang1, 2, LI Wei1, SUN Da-hai1, ZHUANG Zhi-xia1, WANG Xiao-ru1*
1.The Key Laboratory of Analytical Sciences of MOE and Department of Chemistry, Xiamen University, Xiamen 361005, China 2.Shenzhen Marine and Fishery Environment Monitoring Station, Shenzhen 518049, China
Abstract：With two kinds of sensing methods for relative humidity based on fluorescence and visible absorption respectively, crystal violet was opted as the molecule probe for humidity.The optical chemical sensing film for humidity was prepared when crystal violet was embedded in the Nafion gel.The relative humidity sensor was fabricated after the sensing film had been coupled with other components, such as optical fiber and detector, which possessed short response time (<2 min), high sensitivity (≤5% RH), wide dynamic range (30%-100%) and good reversibility (RSD≤2.6%) for relative humidity at 640 nm wavelength.
金兴良1, 2，李 伟1，孙大海1，庄峙厦1，王小如1* . 基于Nafion-结晶紫传感膜的光纤湿度传感器研究[J]. 光谱学与光谱分析, 2005, 25(08): 1328-1331.
JIN Xing-liang1, 2, LI Wei1, SUN Da-hai1, ZHUANG Zhi-xia1, WANG Xiao-ru1* . Fabrication of Relative Humidity Optical Fiber Sensor Based on Nafion-Crystal Violet Sensing Film . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(08): 1328-1331.
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