电子科技2025，Vol.38Issue(5)：89-94,6.DOI:10.16180/j.cnki.issn1007-7820.2025.05.013
机载多芯屏蔽线束的传导敏感度研究
Research on Conducted Susceptibility of Airborne Multicore Shielded Wire
摘要
Abstract
With the increasing complexity of avionics systems,the problem of the conducted susceptibility of multi-core shielded wire harnesses in complex electromagnetic environments affects the reliability of airborne equip-ment.In view of the conducted susceptibility problem of multi-core shielded wire harnesses,this study investigates the shielding effects of single-ended grounding and double-ended grounding for wire harnesses with different num-bers of core wires,and proposes a collaborative method combining experimental testing and data fitting.Based on the existing conducted susceptibility measurement system,the induced currents of two-core,four-core,and eight-core wire harnesses are tested and analyzed within the frequency range of 10 kHz to 0.4 GHz.The results show that the susceptibility level of a single core wire in a multi-core wire harness decreases as the number of core wires in-creases.For double-ended grounded wire harnesses,the shielding effect is better than that of single-ended grounded ones when the frequency is less than 300 MHz.The induced current of a single core in an eight-core wire harness is only 10%to 40%of that in a single-core wire harness,which provides an important reference for the de-sign and engineering application of airborne multi-core shielded wire harnesses.关键词
机载设备/多芯线束/传导敏感度/接地/协同方法/电磁兼容性/感应电流/传输线理论Key words
airborne equipment/multi core wire harness/conductivity sensitivity/grounding/collaborative ap-proach/EMC/induced current/transmission line theory分类
信息技术与安全科学引用本文复制引用
郗松岳,徐琦,李继成,李天傲,刘亮,路宏敏..机载多芯屏蔽线束的传导敏感度研究[J].电子科技,2025,38(5):89-94,6.基金项目
国防基础科研类项目(MKF20230377) National Defense Basic Research Projects(MKF20230377) （MKF20230377）
