基于混合干涉仪的盐度和温度同步测量

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

IEEE Sensors Journal Pub Date : 2025-08-11 DOI:10.1109/JSEN.2025.3595709

Rui-Jie Liu;Yong Zhao;Ran Gao;Ri-Qing Lv;Hong-Kun Zheng

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引用次数: 0

摘要

提出并验证了一种集c型法布里-珀罗干涉仪（FPI）和马赫-曾德干涉仪（MZI）于一体的小型混合干涉仪光纤传感器。在单模光纤（SMF）和少模光纤（FMF）之间拼接一段空芯光纤（HCF），通过飞秒激光刻字技术打开c型光纤通道，该通道对盐度和温度敏感。而由两个具有较大横向偏移的FMFs之间的单个应力施加纤维（SSAF）和聚二甲基硅氧烷（PDMS）覆盖的MZI仅用于温度测量。结合两种干涉仪的特性，采用二次多项式曲面拟合算法求解温度、盐度的非线性响应和交叉灵敏度，得到更精确的结果。实验结果表明，该传感器在盐度0‰~ 40‰范围内，通过腔长解调可获得12.05 nm/‰的高灵敏度，在温度$5~^{\circ}$ C $\sim $ 40~^{\circ}$ C范围内，通过波长解调可获得- 3.33 nm/°C的高灵敏度。经过二次多项式曲面拟合算法处理后，盐度和温度的指示误差分别为1.44%和2.6%。

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Simultaneous Measurement of Salinity and Temperature Based on Hybrid-Interferometer

A compact hybrid-interferometer-based fiber sensor integrating the C-shaped Fabry–Perot interferometer (FPI) and Mach–Zehnder interferometer (MZI) is put forward and verified. The C-shaped FPI formed by a section of hollow core fiber (HCF) spliced between a single-mode fiber (SMF) and a few-mode fiber (FMF) and opened up by femtosecond laser inscribing technology is sensitive to salinity and temperature. While the MZI constructed by a single stress-applying fiber (SSAF) between two FMFs with a large lateral offset and covered by Polydimethylsiloxane (PDMS) is for temperature measurement only. Combined with the properties of the two interferometers, the quadratic polynomial surface fitting algorithm is adopted to solve the nonlinear response and cross-sensitivity of temperature and salinity to figure out a more precise result. According to the experimental results, the proposed sensor could achieve a high sensitivity of 12.05 nm/‰ in the salinity range of 0‰–40‰ by cavity length demodulation, and −3.33 nm/°C in the temperature range of

$5~^{\circ }$

$\sim 40~^{\circ }$

C by wavelength demodulation, respectively. After the processing of the quadratic polynomial surface fitting algorithm, the indication errors of salinity and temperature are 1.44% and 2.6%, respectively.

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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