基于HFSS的同轴电缆布拉格传感器设计  

Design of coaxial cable Bragg grating sensor based on HFSS

作　　者：孟浩[1,2] 付继华[3] 刘国忠[1,2] 杨帆 MENG Hao;FU Jihua;LIU Guozhong;YANG Fan(School of Instrumentation Science&Optoelectronics Engineering,Beijing Information Science&Technology University Beijing 100192,China;Institute of Precision Measuring Technology and Instruments,Beijing Information Science&Technology University,Beijing 100192,China;Institute of Crustal Dynamics,China Earthquake Administration,Beijing 100085,China)

机构地区：[1]北京信息科技大学仪器科学与光电工程学院,北京100192 [2]北京信息科技大学,精密测试技术与仪器研究所,北京100192 [3]中国地震局地壳应力研究所,北京100085

出　　处：《激光杂志》2020年第4期34-38,共5页Laser Journal

基　　金：国家自然科学基金(No.41874019);北京市自然科学基金(No.7172035)。

摘　　要：为满足结构健康监测领域对大变形传感器高精度和适应恶劣环境能力强的要求,根据电磁场的基本理论,运用仿真分析软件HFSS,分别建立同轴电缆及同轴电缆布拉格传感器的仿真分析模型。根据仿真分析结果,优化同轴电缆布拉格传感器敏感元件的结构参数,实现同轴电缆布拉格传感器的仿真设计。根据仿真结果,制作同轴电缆布拉格传感器并进行相关特性实验。特性实验与仿真分析分析结果具有良好的一致性。结果表明,钻孔数目增加,品质因数增大;钻孔深度增加,品质因数增大;钻孔直径增加,品质因数减小;钻孔形状对品质因数的影响不显著。In order to meet the requirements of structural health monitoring for high accuracy and good adaptability of large strain sensors,the simulation models of coaxial cable and coaxial cable Bragg grating (CCBG) are respectively established by using HFSS based on fundamental theory of electromagnetic field. According to the simulation results,the simulation design of a single CCBG is realized by optimizing the structures,sizes and quantities of its sensitive elements. On the basis of the simulation results,the CCBG sensors are made and the related experiments are carried out.The experimental results are well consistent with those of the simulation analysis. The results show that Q factor of CCBGs increases as the number of holes increases,Q factor of CCBGs increases as the depth of holes increases,Q factor of CCBGs decreases as the sizes of holes increases,and the shape of holes has no significant influences on Q factor of CCBGs.

关 键 词：结构健康监测 同轴电缆布拉格传感器 反射谱 HFSS 品质因数 

分 类 号：TN202[电子电信—物理电子学]