基于微锥结构的明胶涂层长周期光纤光栅湿度传感器

IF 4.3 2区综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Sensors Journal Pub Date : 2025-08-07 DOI:10.1109/JSEN.2025.3594874

Xuelan He;Peng Guo;Ming Li;Jian Xing;Wenchao Li;Shuanglong Cui

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引用次数: 0

摘要

提出并演示了一种基于明胶涂层微锥结构的长周期光纤光栅（LPFG）测量相对湿度。通过在单模光纤（SMF）上进行周期性电弧放电形成周期微锥，从而周期性调制光纤的折射率，形成具有微锥结构的LPFG。整个传感器涂有明胶以检测RH的变化。实验结果表明，减小腰锥度直径可以提高湿度灵敏度。当腰锥度直径为$85~\mu $ m时，在20% RH ~ 80% RH范围内，湿度灵敏度最大为−0.1282 nm/% RH，响应时间为0.048 s。

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Gelatin-Coated Long-Period Fiber Grating Humidity Sensor Based on a Microtaper Structure

A long-period fiber grating (LPFG) based on a microtaper structure with gelatin coating for relative humidity (RH) measurement is proposed and demonstrated. Periodic microtapers are formed by periodic arc discharge on a single-mode fiber (SMF), thereby periodically modulating the refractive index of the fiber and forming an LPFG with a microtaper structure. The entire sensor is coated with gelatin to detect changes in RH. The experimental results show that the humidity sensitivity can be improved by reducing the diameter of the waist taper. When the diameter of the waist taper is

$85~\mu $

m, the humidity sensitivity reaches a maximum of −0.1282 nm/% RH in the range from 20% RH to 80% RH with the response time of 0.048 s.

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来源期刊

IEEE Sensors Journal 工程技术-工程：电子与电气

CiteScore

7.70

自引率

14.00%

发文量

2058

审稿时长

5.2 months

期刊介绍： The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following: -Sensor Phenomenology, Modelling, and Evaluation -Sensor Materials, Processing, and Fabrication -Chemical and Gas Sensors -Microfluidics and Biosensors -Optical Sensors -Physical Sensors: Temperature, Mechanical, Magnetic, and others -Acoustic and Ultrasonic Sensors -Sensor Packaging -Sensor Networks -Sensor Applications -Sensor Systems: Signals, Processing, and Interfaces -Actuators and Sensor Power Systems -Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting -Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data) -Sensors in Industrial Practice