A Miniaturized, Low-Cost Interrogator via Intrapulse Wavelength Demodulation for Operando Fiber-Optic Sensing in Batteries

IF 5.6 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Instrumentation and Measurement Pub Date : 2025-06-02 DOI:10.1109/TIM.2025.3575963

Jiahua Yang;Xibin Lu;Hongting Du;Jiaqiang Huang

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引用次数: 0

Abstract

Fiber-optic sensing shows great promise in battery monitoring due to its versatile sensing capability, compact size, flexibility, and electromagnetic immunity. However, the high cost of optical interrogators limits large-scale commercialization. Herein, we develop a low-cost, miniaturized interrogator utilizing off-the-shelf distributed feedback (DFB) lasers in pulse mode to induce frequency chirping. This design maintains environmental immunity while partially replacing costly spectrum analyzers. Compared to other commercial interrogators, our device excels in cost and scanning rate, achieving a MHz scanning rate with accuracy and repeatability. We demonstrate its successful application in commercial 18650 lithium-ion batteries (LiNi0.8Co0.1Mn0.1O2/C) by implanting the fiber Bragg grating (FBG) sensor, and it features time-division multiplexing (TDM) for monitoring multiple sensing points. Additionally, the techno-economic analysis corroborates the considerable added value of the novel interrogator in diverse application scenarios. Collectively, the development of new interrogation devices will not only advance smarter energy storage systems but also provide insights into next-generation optical sensing devices.

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一种基于脉冲内波长解调的小型低成本询问器，用于电池中的操作光纤传感

光纤传感由于其多功能的传感能力、紧凑的尺寸、灵活性和电磁抗扰性，在电池监测中显示出巨大的前景。然而，光学讯问器的高成本限制了其大规模商业化。在此，我们开发了一种低成本，小型化的询问器，利用现成的脉冲模式分布式反馈（DFB）激光器来诱导频率啁啾。这种设计保持了环境抗扰性，同时部分取代了昂贵的频谱分析仪。与其他商用讯问器相比，我们的设备在成本和扫描速率方面具有优势，实现了MHz的扫描速率，具有准确性和可重复性。通过植入光纤布拉格光栅（FBG）传感器，我们成功地将其应用于商用18650锂离子电池（LiNi0.8Co0.1Mn0.1O2/C），并具有时分多路复用（TDM）功能，用于监控多个传感点。此外，技术经济分析证实了该新型讯问机在不同应用场景中的相当大的附加价值。总的来说，新型审问设备的开发不仅将推进更智能的能量存储系统，还将为下一代光学传感设备提供见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

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.