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在托卡马克使用偏振灵敏反射光学光纤传感器进行分布式极形磁场测量

Prasad Dandu¹, Andrei Gusarov², Willem Leysen²

¹Department of Electromagnetism and Telecommunications, University of Mons, 7000 Mons, Belgium.

Sensors (Basel, Switzerland)

|July 14, 2023

概括

这项研究引入了一种光纤传感器,用于测量托卡马克中波状磁场,利用雷利反射和法拉第效应. 传感器展示了精确的磁场测量,这对于托卡马克运行至关重要.

科学领域:

血物理学的等离子体物理学
核聚变能源的研究.
光学传感技术的技术.

背景情况:

准确地测量波状磁场对于稳定的托卡马克运行和等离子体限制至关重要.
现有的磁场诊断方法往往在空间分辨率或侵入性方面面临限制.

研究的目的:

提出和验证一种新的光纤传感器,用于在托卡马克地区进行分布式极状磁场测量.
为了利用内在的光纤特性,增强磁场诊断.

主要方法:

使用一个极化敏感的光纤传感器,利用雷利反向散射进行分布式测量.
采用法拉第磁光效应,在磁场诱导的极化旋转沿着光纤进行测量.
实验验证了联合欧洲托鲁斯 (JET) 上的传感器.

主要成果:

光纤传感器成功测量了极形磁场的空间分布.
实验结果与内部离散线圈的测量结果一致.
提出并模拟了一种方法,以改善噪音地区的数据恢复.

结论:

对偏振敏感的光纤传感器是tokamaks.com中 poloidal磁场的可行和准确的诊断工具.
这项技术为融合装置中的磁场监测提供了一种有前途的非侵入性方法.
进一步开发可以提高数据质量和适用于具有挑战性的托卡马克环境.

关键词:

在JET磁场的磁场.分布式磁场测量分布式磁场测量光纤传感器是一种光纤传感器.极化敏感的反射测量仪波立体磁场测量的磁场测量.托卡马卡马卡是什么托卡马卡

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