光通信技术2026，Vol.50Issue(2)：34-40,7.DOI:10.13921/j.cnki.issn1002-5561.2026.02.006
光缆结构对相位敏感光时域反射仪传感性能的影响
Influence of optical cable structure on the sensing performance of Φ-OTDR
摘要
Abstract
To investigate the influence of optical cable structure on the sensing performance of phase-sensitive optical time-domain reflectometer(Φ-OTDR),four typical optical cables,namely glass fiber reinforced plastic(GFRP)single-core optical cable,spiral armored optical cable,steel wire armored optical cable,and stranded composite optical cable,were taken as re-search objects.The transfer process of strain between different layers of the optical cables was analyzed.Through numerical simulation and vibration experiments,the variation trends of vibration response characteristics of different optical cables with frequency and amplitude were studied.The experimental results show that the tight-buffered fiber of the stranded composite op-tical cable exhibits good sensing performance in both frequency response and amplitude response to vibration signals,while the steel wire armored optical cable and the GFRP single-core optical cable are insensitive to high-frequency signals.关键词
光缆结构/相位敏感光时域反射仪/光纤传感/振动Key words
optical cable structure/phase-sensitive optical time-domain reflectometer/optical fiber sensing/vibration分类
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桂婕,沙洲,封皓,芮小博..光缆结构对相位敏感光时域反射仪传感性能的影响[J].光通信技术,2026,50(2):34-40,7.基金项目
天津市计量科技项目(2024TJMT010)资助. （2024TJMT010）
