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新型分布式传感器漏泄同轴电缆的理论研究

更新时间:2020-11-01 03:01:26 大小:733K 上传用户:zhengdai查看TA发布的资源 标签:分布式传感器同轴电缆 下载积分:1分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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为获得作为一种埋墙式探测传感器的漏泄同轴电缆(以下简称漏缆)的电气特性,研究适用于室内安防系统的新型分布式传感器,设计了一种外导体为垂直开槽结构的耦合型漏缆.利用电磁仿真软件HFSS,搭建漏缆模型,理论分析并提取出缝隙的等效电路模型,理论计算与仿真相结合验证了等效电路的正确性;从等效电路模型出发,运用ABCD矩阵计算出了等效电路模型中元件的具体参数值及漏缆间的耦合参数值.结果表明,可用等效电路思想去等效替代,解决了HFSS实际仿真长度受限问题;同时理论计算出了等效参数和漏缆间耦合参数值,更直观地反映了漏缆间的耦合能力.

To analyze the electrical characters of leaky coaxial cable(LCX)as a detection sensor buried in the wall and research a new distributed sensor for indoor security system,a kind of coupling LCX with vertical slots on external conductor was designed.The LCX model was set up using HFSS,the equivalent circuit model was theoretical analyzed and extracted,which proved to be correct by the combination of theoretical calculation and simulation.Based on the equivalent model,the equivalent parameters and the LCXS coupling parameters were calculated by using the ABCD matrix.Results show that the equivalent circuit is right,this will solve the LCX length limited problem in HFSS simulation;the equivalent parameters and the coupling parameters between the LCXS were also theoretical calculated,the coupling capability between the LCXS are more intuitive shown.

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