Polarization-Independent Optical Fiber Current Transformer

IF 5.9 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Can Li;Yi Zhao;Shunyang Liu;Aodi Yu;Jundong Tian;Yan Zuo;Yuan Ke;Li Xia
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引用次数: 0

Abstract

This article presents a polarization-independent, phase-demodulation-based all-fiber current sensor. The proposed scheme maintains the accuracy of phase detection measurement while eliminating complex components such as polarizers and $\lambda /4$ waveplates. The system is constructed with single-mode fibers, significantly simplifying the overall design and effectively addressing the measurement errors caused by environmental changes that affect the $\lambda /4$ waveplates. Moreover, signal demodulation is achieved through a passive multiplexing network, which allows the simultaneous measurement of ac and dc currents. The experimental results demonstrate that the system’s output remains essentially unchanged under varying input polarizations, thereby validating its polarization-independent nature. Compared with traditional phase-based current detection schemes, the proposed system demonstrates enhanced immunity to environmental interference.
偏振无关光纤电流互感器
本文提出了一种基于偏振无关、相位解调的全光纤电流传感器。该方案在保持相位检测测量精度的同时,消除了偏振器和$\ λ /4$波片等复杂元件。该系统采用单模光纤结构,大大简化了整体设计,有效地解决了由于环境变化影响$\ λ /4$波片而引起的测量误差。此外,信号解调是通过无源多路复用网络实现的,该网络允许同时测量交流和直流电流。实验结果表明,在不同的输入极化下,系统的输出基本保持不变,从而验证了其与极化无关的性质。与传统的基于相位的电流检测方案相比,该系统具有较强的抗环境干扰能力。
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来源期刊
IEEE Transactions on Instrumentation and Measurement
IEEE Transactions on Instrumentation and Measurement 工程技术-工程:电子与电气
CiteScore
9.00
自引率
23.20%
发文量
1294
审稿时长
3.9 months
期刊介绍: Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications. The scope of these papers may encompass: (1) theory, methodology, and practice of measurement; (2) design, development and evaluation of instrumentation and measurement systems and components used in generating, acquiring, conditioning and processing signals; (3) analysis, representation, display, and preservation of the information obtained from a set of measurements; and (4) scientific and technical support to establishment and maintenance of technical standards in the field of Instrumentation and Measurement.
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