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基于对光缆卷盘缆层静态压力分布的理论分析,建立了光缆缠绕体系中的受力理论模型.研究表明,随着缠绕层数的增加,卷盘各层光缆所受压强先快速增大而后变化平缓.采用分布式光纤Bragg光栅(FBG)对光缆绕线装置上缆层的静态压力进行了实时传感,理论上给出了FBG的中心波长偏移量与体系压强的定量关系,实验上发现各层FBG的中心波长随着光缆卷盘缠绕层数的增加先较快速变化而后趋于平缓,理论模拟和实验测量结果符合得很好.该技术解决了光缆绕线过程中无法对缆层所受压力进行实时监测的难题.
Based on the theoretical analysis of the static pressure distribution in the cable reel layer, a theoretical model of the force in the cable winding system is established. The research shows that with the increase of the number of winding layers, the pressure of each optical fiber cable reel first increases rapidly and then And the change is smooth.The distributed pressure fiber Bragg grating (FBG) is used to real-time sensing the static pressure on the cable layer of fiber optic cable winding device, and the quantitative relationship between the center wavelength offset of FBG and system pressure is theoretically given. Experimentally It is found that the center wavelength of each layer of FBG changes rapidly and then tends to be gentle with the increase of the number of layers of the optical fiber reel. The theoretical simulation and the experimental measurement result are in good agreement. This technology solves the problem that the cable layer can not be cabled The pressure of real-time monitoring of the problem.