一个新型纤维布拉格格头线传感器的强力和温度的特征
Grzegorz Fusiek1, Pawel Niewczas1
1Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow G1 1XQ, UK.
Sensors (Basel, Switzerland)
|December 31, 2025
概括
使用光纤布拉格格 (FBGs) 的新光学传感器准确监测空中电力线 (OHL) 的机械参数. 这种坚固,无环氧的设计可靠地测量高温低 (HTLS) 导体的应变和温度.
科学领域:
- 材料科学 材料科学 材料科学
- 光学工程是指光学工程.
- 电气工程 电气工程
背景情况:
- 空中电力线 (OHLs) 需要持续监测机械完整性.
- 高温低 sag (HTLS) 导体由于运行温度和机械负载而存在独特的监控挑战.
- 现有的监控解决方案可能缺乏先进导体类型所需的稳定性或准确性.
研究的目的:
- 描述一种用于OHL机械参数监测的新型光学传感器.
- 为了评估传感器的性能,使用传统和HTLS导体.
- 为了证明传感器能够同时跟踪温度和机械负载.
主要方法:
- 在密封的Kovar®毛细管中使用纤维布拉格格 (FBGs) 开发光学传感器.
- 无环氧设计,提高耐用性和可靠性.
- 实验室测试涉及30°C至200°C范围内的应变和温度测量,以及高达2kN的力.
- 通过热循环测试评估传感器性能.
主要成果:
- 传感器直接测量导体应变和温度,从而可以间接估计垂落,张力和应力.
- 经实验确定的灵敏度为力约为0.4nm/kN,温度为27pm/°C.
- 传感器在30°C至200°C之间经过10个热周期后,保持了20%的变化范围内的强力灵敏度.
结论:
- 开发的光学传感器提供了一种可靠的方法来监测OHL的机械参数,包括HTLS导体.
- 坚固,密封的设计确保在广泛的温度范围内保持一致的性能.
- 传感器能够同时跟踪温度和机械负载,这突显了其在提高电力传输网络安全性和效率方面的潜力.
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