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.
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.