大环发射天线磁感应透地无线起爆系统透地性能分析  

Analysis on earth penetration performance of magnetic induction-based through-the-earth wireless initiation system using large circular transmitting antennas

作　　者：李晓奂 杨维[1] 孙皓 LI Xiaohuan;YANG Wei;SUN Hao(School of Electronic and Information Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学电子与信息工程学院,北京100044

出　　处：《辽宁工程技术大学学报（自然科学版）》2024年第4期393-399,共7页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金项目(62071032)。

摘　　要：为在露天矿等起爆作业场景中实现大规模的透地无线起爆,研究在地上发射端采用大环发射天线的磁感应透地无线起爆系统。建立磁感应透地无线起爆中发射天线线圈与接收天线线圈的等效电路,基于等效电路建立大环形天线无线起爆透地磁感应强度模型,计算得到透地无线起爆磁感应强度阈值。仿真分析透地深度、发射天线匝数与半径、发射功率等因素对透地磁感应强度的影响。研究结果表明:透地无线起爆系统能实现对地下7.52m深处雷管的起爆,且可通过增加发射线圈匝数、适当降低发射线圈半径,以及提高发射功率的方式提高透地无线起爆系统的起爆深度。研究结论为大环形发射天线磁感应透地无线起爆系统的参数选取提供理论依据。In order to realize large-scale through-the-earth(TTE)wireless initiation in blasting operation scenes such as open pit mines,a TTE wireless initiation system based on magnetic induction(MI)with large circular transmitting antenna coils at the ground transmitting end is studied.The equivalent circuit of transmitting antenna coils and receiving antenna coils in MI TTE wireless initiation system is established.Based on the equivalent circuit,the MI intensity model of TTE wireless initiation with large circular antennas at the transmitting end is established,and the MI intensity threshold of TTE wireless initiation is calculated.The influence of penetration depth,turns and radius of transmitting antennas and transmitting power on TTE MI intensity is simulated and analyzed.The results show that the TTE wireless initiation system can detonate the detonators at the depth of 7.52 m underground,and the initiation depth of the TTE wireless initiation system can be improved by increasing the number of turns of the transmitting coils,appropriately reducing the radius of the transmitting coils and increasing the transmitting power.The research conclusions provide a theoretical basis for the parameter selection of the MI TTE wireless initiation system based on the large circular transmitting antenna coils.

关 键 词：透地通信 磁感应 无线起爆 涡流损耗 大环发射天线 

分 类 号：TD655[矿业工程—矿山机电]