基于光纤自适应耦合和自调谐的光纤光栅传感系统设计

针对光纤光栅传感系统应用中面临的应变能力和可靠性不稳定的问题,研究并设计了一种基于自适应耦合切换和自调谐光纤光栅传感系统。首先,基于长周期和短周期光纤光栅耦合特性建立了自适应耦合器件及其切换算法,然后再分析耦合特性的基础上设计了支持自调谐功能的光纤光栅传感器及其调谐算法,最后给出了支持耦合自适应切换和耦合特性自调谐功能的光纤光栅传感系统。实验表明,在检测精度、抗干涉能力和应变能力等方面,所提方案表现出了明显优势。

Fiber Bragg Grating Sensor System Based on Adaptive Fiber Coupling and Self-tuning

For in the face of FBG sensing system application resilience and reliability problems of instability, and designed a study based on self-tuning adaptive switching and coupling FBG sensing systems. First, based on the long-period and short-period fiber grating coupling characteristics of the establishment of the adaptive coupling devices and switching algorithm, and then based on the analysis of the design of the coupling characteristics to support self-tuning function FBG sensors and tuning algorithm, Finally support coupled adaptive switching and coupling characteristics of the self-tuning function FBG sensing systems. Experiments show that in terms of detection accuracy, anti-interference ability and adaptability, etc., the proposed scheme showed a clear advantage.