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首页> 外文期刊>Journal of Basic and Applied Physics >Strain Transfer of Bonded FBG Sensor for Coal Mining Similar Model
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Strain Transfer of Bonded FBG Sensor for Coal Mining Similar Model

机译：粘结FBG传感器在相似模型下的应变传递

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摘要

To accurately monitor the strain of a host with low strength, a new strain transfer model is proposed for the substrate FBG sensor. In the strain transfer model, the mechanical properties of the host are taken into consideration. The strain relationship between the fiber core and the host is obtained. The theoretical approach was verified by numerical simulation and experimental results. The influences of the mechanical parameters of the host on the strain transfer are analyzed. It is concluded that the strain transfer rate increases nonlinearly with the increase of the shear modulus of the host. The shear modulus of the host has different influence in different strain ranges; for the low strength host, the mechanical parameters of the host have great influence on the strain transfer rate. These results provide theoretical guidelines for the FBG sensor applications in low strength host.
机译：为了精确地监测低强度主体的应变，提出了一种用于基板FBG传感器的新应变传递模型。在应变传递模型中，考虑了主体的机械性能。获得了纤维芯和主体之间的应变关系。数值模拟和实验结果验证了该理论方法的有效性。分析了主机的机械参数对应变传递的影响。可以得出结论，应变传递率随着主体的剪切模量的增加而非线性增加。主体的剪切模量在不同的应变范围内具有不同的影响。对于低强度主体，主体的机械参数对应变传递速率有很大影响。这些结果为FBG传感器在低强度宿主中的应用提供了理论指导。

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