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分布式光学应变传感测量到低温冷温度

K Kandemir, M Guinchard, M Crouvizier

|September 14, 2023

概括

基于雷利反向散射 (RBS) 的纤维传感器在低温温度下准确测量应变. 这项技术在极端环境中为传统张力计提供了可行的替代方案.

科学领域:

物理物理学物理
材料科学材料科学材料科学
工程工程师工程师工程师

背景情况:

基于雷利反射散射 (RBS) 的分布式光纤传感器在航空航天,国防,汽车,民用和地质工程领域越来越重要.
这项技术利用标准单模电信光纤中的自然雷利反射辐射进行测量.
它在恶劣环境中的应用,如CERN的环境,需要了解在极端条件下的性能.

研究的目的:

评估基于RBS的分布式光纤应变传感器在低温温度 (4.2K) 的精度.
为了比较基于RBS的传感器的性能与既有技术,如电压力计和纤维布拉格格等.

主要方法:

基于RBS的分布式光纤应变传感系统的机械测试.
在低温条件下进行测试,低至4.2K.
用电力张力计和光纤布拉格格技术进行比较分析.

主要成果:

证明了基于RBS的分布式光纤应变传感在低温温度下的准确性.
提供了直接比较RBS传感器性能与电压力计和光纤布拉格格的4.2K.
验证了基于RBS的传感器适用于极端寒冷环境中的应用.

结论:

基于RBS的分布式光纤应变传感在冷温度下是准确和可靠的.
这项技术在极端环境中提供了强大的替代传统应变测量方法.
这些发现支持在核研究和航空航天等苛刻领域使用基于RBS的传感器.

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