基于分布式光纤Bragg光栅传感技术的光缆卷盘静态压力研究  

Study on static pressure of fiber cable spool based on distributed fiber Bragg grating sensing technology

作　　者：马成举[1,2] 任立勇[1] 唐峰[3] 屈恩世[1] 徐金涛[1] 梁权[3] 王舰[1] 韩旭[1] 

机构地区：[1]中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,西安710119 [2]西安石油大学理学院,西安710065 [3]西安现代控制技术研究所,西安710065

出　　处：《物理学报》2012年第5期313-318,共6页Acta Physica Sinica

基　　金：中国科学院"西部之光"(批准号:2009LH01);中国科学院创新基金(批准号:CXJJ-11-M22);留学人员科技活动项目择优资助经费和教育部留学回国人员科研启动基金资助的课题~~

摘　　要：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 of fiber cable layer in an optical fiber cable spool, we establish a theoretical model of the force in the cable winding system. Simulations indicate that with the increase of the twining layers, the pressure of every layer in the spool increases very quickly at the beginning and mildly then. The static pressure of fiber cable layers in the spool on cable winding device is sensed by use of distributed fiber Bragg gratings （FBG）. The quantitative relationship between the variation of FBG center wavelength and the system pressure is given theoretically. It is shown experimentally that with the increase of the twining layers, the variation pace of FBG center wavelength in every layer is very quick at the beginning and gentle then. Theoretical simulations coincide with experimental results very well, This technology provides us a real-time method to monitor the pressure of the fiber cable layer in the cable winding process.

关 键 词：光缆卷盘 光纤Bragg光栅(FBG) 轴向应变 径向应变 

分 类 号：TN818[电子电信—信息与通信工程] TP212.14[自动化与计算机技术—检测技术与自动化装置]