材料科学
光纤布拉格光栅
湿度
相对湿度
芯(光纤)
光纤传感器
温度测量
聚乙烯醇
灵敏度(控制系统)
纤维
光纤
石墨烯
光学
光电子学
复合材料
纳米技术
电子工程
工程类
物理
热力学
量子力学
波长
作者
Qihang Cheng,Ai-ling Zhang,Hong-gang Pan,Wen Li,Ce Sun
标识
DOI:10.1007/s11801-020-9215-x
摘要
A simple structure optical fiber sensor for relative humidity (RH) and temperature measurement is proposed and verified in this paper, which is based on graphene oxide quantum dots and polyvinyl alcohol (GOQDs-PVA) composite coated tapered no-core fiber (NCF) combined with a fiber Bragg grating (FBG). FBG is insensitive to humidity and sensitive to temperature, which is used to compensate temperature of the sensor. Experimental results show this sensor has humidity sensitivity of 143.27 pm/%RH ranging from 30%RH to 80%RH and the temperature sensitivity of 9.21 pm/°C. The proposed sensor has advantages of simple structure, good repeatability, and good stability, which is expected to be used in both RH and temperature measurement in biological and chemical fields.
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