电缆转移阻抗测量方法及实践

转移阻抗是衡量外部电磁场能量透过电缆屏蔽层的特征参数.介绍了测量转移阻抗的三同轴方法,探索了并联铜带分流和扁钢分流的测量方法,得出了利用分流物可以增强电缆屏蔽效能的结论.;The transfer impedance is a characteristic parameter that formulates exterior electromagnetic field energy penetration through the cable shielding level. The three coaxial method is introduced and the transfer impedance is measured. Different measuring techniques such as the copper tape and the steel belt parallel connection are explored. It is found that the parallel arrangement can be used to improve the shielding efficiency of the cable