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利用多模光纤的微弯特性 ,提出并实现了一种新颖的光纤缠绕式管道形变传感器 ;也给出了它的基本实验原理 .研究表明多模光纤的微弯损耗对导管的变形响应灵敏 ,其灵敏度可达 3.5 d B/ με.并且实验与理论符合的很好
Based on the micro-bending characteristics of multimode fiber, a novel fiber-wound pipe strain sensor is proposed and implemented, and its basic experimental principle is also given.Research shows that the micro-bending loss of multimode fiber is sensitive to the deformation of the pipe, Its sensitivity is up to 3.5 d B / με, and the experiment is in good agreement with the theory