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相关实验视频

Updated: Jul 12, 2025

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

在液体中使用纤维布拉格格子进行批量温度概况映射.

Sylvie Su¹, Tianyi Niu^1,2, Tobias Vogt¹

¹Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany.

Sensors (Basel, Switzerland)

|October 28, 2023

概括

纤维布拉格格 (FBG) 传感器,当最小的干扰液体流动时,提供了可靠的温度测量. 一种具有实时应变校正的新型组装程序提高了空间和时间温度场检测的准确性.

关键词:

纤维维拉格格子 (FBG) 纤维维拉格子在散装测量中进行批量测量.多重复杂的多重复杂.有光纤的光学纤维.温度映射的温度绘制.温度传感器温度传感器温度传感器

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Writing Bragg Gratings in Multicore Fibers

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Published on: March 8, 2020

相关实验视频

Last Updated: Jul 12, 2025

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

Writing Bragg Gratings in Multicore Fibers

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Published on: March 8, 2020

科学领域:

物理物理学物理
材料科学材料科学材料科学
流体动力学流体动力学

背景情况:

在液体流中精确测量温度对于各种科学和工业应用至关重要.
传统的传感器可以扰乱流动动力学,并引入不准确性.
纤维布拉格格 (FBG) 传感器为非侵入性温度传感提供了潜力.

研究的目的:

评估使用未封装的纤维支架格子 (FBG) 传感器来测量液体流中的温度变化是否可行.
开发和验证一种方法,以提高基于FBG的温度测量在动态流体环境中的稳定性和准确性.

主要方法:

使用24个FBG传感器和并行热电偶测量的基准设置进行实验验证.
实施了一种特殊的组装程序,涉及FBG纤维的预拉伸以提高刚性.
开发一种实时应变校正方法,使用参考FBG传感器进行准确的相对温度读数.

主要成果:

证明成功记录了液体金属 (GaInSn) 和水中的空间和时间温度变化.
在受控温度梯度和加热场景中,验证了FBG传感器与热电偶的准确性.
展示了检测沿FBG纤维线性温度分布的能力.

结论:

没有封装的FBG传感器,有了适当的组装和应变校正,能够在液体流中准确测量温度.
拟议的方法允许详细描述温度场,在空间和时间上.
该研究强调了FBG传感器在先进流体温度监测方面的潜力和局限性.