Real-time monitoring of spectral dynamics through multiresonant fiber grating in particle suspension

IF 5.6 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Measurement Pub Date : 2026-05-05 Epub Date: 2026-03-05 DOI:10.1016/j.measurement.2026.120974

Yan Zhou , Rui-Pin Chen , Linsheng Chen , Wen Zhang , Huaping Gong , Changyu Shen , Yang Zhang , Wenjun Zhou

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引用次数: 0

Abstract

The ability to real-time sense the dynamic reactions is particularly critical in a wide range of applications, such as material formation process and biochemistry development. In this paper, a fiber-optic sensing platform based on a tilted fiber Bragg grating (TFBG) with multiresonance combs is proposed to real-time monitor the spectral dynamics in particle suspension. Utilizing the dense comb-like resonance spectrum of the TFBG, dynamic temporal evolution is fully observed by tracking the responses in liquid, which mainly progresses through the first phase dominated by bulk refractive index (RI), then transitions to the second phase modulated by the gradual scattering effect, and eventually to an equilibrium state. This method enables detection of bulk refractive index changes and particle induced scattering effects, where the subtle changes are successfully captured continuously in an evolving suspension. This work highlights the unique capability of multiresonant fiber grating to resolve real-time monitoring in particulate suspensions, paving the way for applications in process control under complex liquid environments.

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用多共振光纤光栅实时监测颗粒悬浮液中的光谱动力学

实时感知动态反应的能力在材料形成过程和生物化学开发等广泛应用中尤为重要。本文提出了一种基于多共振梳状倾斜光纤布拉格光栅（TFBG）的光纤传感平台，用于实时监测颗粒悬浮液中的光谱动态。利用TFBG密集的梳状共振谱，通过跟踪液体中的响应，充分观察了动态的时间演变，主要经历由体折射率（RI）主导的第一相，然后过渡到由逐渐散射效应调制的第二相，最终达到平衡状态。该方法能够检测体折射率变化和粒子诱导散射效应，其中细微的变化在不断变化的悬浮液中被成功地连续捕获。这项工作突出了多谐振光纤光栅解决颗粒悬浮液实时监测的独特能力，为复杂液体环境下的过程控制应用铺平了道路。

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

Measurement 工程技术-工程：综合

CiteScore

10.20

自引率

12.50%

发文量

1589

审稿时长

12.1 months

期刊介绍： Contributions are invited on novel achievements in all fields of measurement and instrumentation science and technology. Authors are encouraged to submit novel material, whose ultimate goal is an advancement in the state of the art of: measurement and metrology fundamentals, sensors, measurement instruments, measurement and estimation techniques, measurement data processing and fusion algorithms, evaluation procedures and methodologies for plants and industrial processes, performance analysis of systems, processes and algorithms, mathematical models for measurement-oriented purposes, distributed measurement systems in a connected world.