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首页> 外文期刊>Structural health monitoring >Combined fiber Bragg grating and fiber optic polarimetric sensors on a single fiber for structural health monitoring of two-dimensional structures
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Combined fiber Bragg grating and fiber optic polarimetric sensors on a single fiber for structural health monitoring of two-dimensional structures

机译：光纤布拉格光栅和光纤偏振传感器结合在单根光纤上，用于二维结构的结构健康监测

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摘要

Fiber optic sensors have a lot to offer in the field of structural health monitoring. The most widely investigated and implemented fiber optic sensors for structural health monitoring are fiber Bragg grating and fiber optic polarimetric sensor. Fiber Bragg grating sensors provide localized strain data, thereby providing local damage information, while fiber optic polarimetric sensors are known for their capabilities of global damage monitoring for both static and dynamic loadings. However, each sensor has to be used with its own instrumentation and processing system. In this article, it is shown that an fiber Bragg grating written on a polarizing maintaining fiber can discern information from both fiber Bragg grating and fiber optic polarimetric sensors using only one decoding system. This reduces costs and complexities. Furthermore, by proper multiplexing the polarizing maintaining-fiber Bragg grating sensor, it is possible to predict the damage location in plates. The results demonstrate that the damage site can be located in two-dimensional structures using this multiplexed sensing array.
机译：光纤传感器在结构健康监测领域可以提供很多服务。用于结构健康监测的研究最广泛的光纤传感器是布拉格光栅和光纤偏振传感器。光纤布拉格光栅传感器提供局部应变数据，从而提供局部损伤信息，而光纤偏振传感器以其对静态和动态载荷的全局损伤监测能力而闻名。但是，每个传感器必须与自己的仪器和处理系统一起使用。在本文中，显示了写在保偏光纤上的光纤布拉格光栅可以仅使用一个解码系统就可以识别来自光纤布拉格光栅和光纤偏振传感器的信息。这降低了成本和复杂性。此外，通过适当地复用偏振保持光纤布拉格光栅传感器，可以预测板中的损坏位置。结果表明，使用该多重感测阵列可以将损伤部位定位在二维结构中。

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