Optical Fiber Temperature and Humidity Dual Parameter Sensing Based on Fiber Bragg Gratings and Porous Film

被引：10
作者：
Peng, Jiankun [1 ]
Zhou, Jianren [1 ]
Sun, Chengli [1 ]
Liu, Qingping [1 ]
Esposito, Flavio [1 ]
机构：
[1] Nanchang Hangkong Univ, Sch Informat Engn, Nanchang 330063, Peoples R China
来源：
SENSORS | 2023年 / 23卷 / 17期
基金：
中国国家自然科学基金;
关键词：
optical fiber sensing; fiber Bragg gratings; porous films; humidity; RELATIVE-HUMIDITY; REFRACTIVE-INDEX; THIN-FILM; SENSOR;
D O I：
10.3390/s23177587
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A porous anodic alumina film is proposed to construct an optical fiber temperature and humidity sensor. In the sensor structure, a fiber Bragg grating is used to detect the environment temperature, and the porous film is used to detect the environment humidity. The proposed porous anodic alumina film was fabricated by anodic oxidation reaction, and it is suitable for the use of humidity detection due to its porous structure. Experimental results show the temperature sensitivity of the proposed sensor was 10.4 pm/& DEG;C and the humidity sensitivity of the proposed sensor was 185 pm/%RH.
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页数：9
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