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针对光纤微弯传感器在强扰动信号作用下,因光纤受损而丧失部分或全部功能的问题,进行了关于传感器自修复的研究.该传感器采用自制的具有良好光学、机械和粘接性能的短波光固化修复剂,将其注入预置有传感光纤的柔性空心纤维中,设计了一种可以实现在线自诊断和实时自修复的双窗口(长波检测、短波修复)智能光纤微弯传感器.对修复时间、修复效果进行了实验和分析.结果表明,该传感器自修复时间短,修复后机械和光学性能良好,并能实现多点修复.
Aiming at the problem that the fiber microbend sensors lose some or all of the functions due to the fiber damage under the action of strong perturbation signals, the self-repairing of the sensors is carried out.The self-made shortwaves with good optical, mechanical and adhesive properties The light curing repair agent is injected into the flexible hollow fiber pre-installed with sensor fiber, and a smart double-window smart sensor (micro-bend sensor with double-wave detection and self-repair) is designed. Repair time and repair effect.The experimental results show that the sensor has short self-healing time, good mechanical and optical properties after repair, and can achieve multi-point repair.