用于湿度的与温度无关的高灵敏度检测的塑料光纤传感器。

Plastic optical fiber sensor for temperature-independent high-sensitivity detection of humidity.

作者信息

Zhong Nainbing, Xin Xin, Liu Huimin, Yu Xiaoyi, Chang Haixing, Tang Bing, Zhong Dengjie, Zhao Mingfu, Zhang Hongmin, Zhao Jie

出版信息

Appl Opt. 2020 Jul 1;59(19):5708-5713. doi: 10.1364/AO.391090.

DOI:10.1364/AO.391090

PMID:32609694

Abstract

A simple U-shaped plastic optical fiber evanescent-wave sensor was fabricated for temperature-independent highly sensitive detection of humidity. The sensing region of the sensor was subjected to five cycles of heating-cooling to improve temperature independence. The effects of the polyimide (PI) coating thickness, number of graphene oxide (GO) coating layers, and alternate PI-GO coating sequence were investigated to optimize sensitivity. The fabricated sensor exhibited high-temperature independence and good sensitivity of 0.17×10 (% relative ) in the temperature range of 10°C to 70°C.

摘要

制作了一种简单的U形塑料光纤倏逝波传感器，用于对湿度进行与温度无关的高灵敏度检测。对传感器的传感区域进行了五个加热-冷却循环，以提高温度独立性。研究了聚酰亚胺（PI）涂层厚度、氧化石墨烯（GO）涂层层数以及PI-GO交替涂层顺序的影响，以优化灵敏度。所制作的传感器在10°C至70°C的温度范围内表现出高温独立性和0.17×10（相对百分比）的良好灵敏度。