阻抗稳定网络关键参数测量结果的不确定度评定  

Uncertainty Estimation for the Measurement ResuIts of Impedance StabiIization Network

作　　者：刘潇[1] 谢鸣[1] 李渤[1] 

机构地区：[1]中国计量科学研究院,北京100029

出　　处：《计量学报》2014年第6期540-544,共5页Acta Metrologica Sinica

摘　　要：根据GB9254—2008标准的要求，对于电信端口发射出来的共模骚扰进行测量时，需要使用阻抗稳定网络（ ISN）。ISN的4个主要参数为共模阻抗、电压分压系数、纵向转换损耗以及去耦合衰减。对于这4个参数的测量结果，现行标准中尚未给出不确定度评定的过程或结果。因此，根据测量过程，给出了这4个参数的不确定度分量及不确定度评定结果，该测量结果的不确定度可用于电信端口共模骚扰发射测量的不确定度评定。According to standard GB9254--2008,impedance stabilization networks （ISNs） are used when performing the common mode disturbance measurements at the telecommunication ports. ISN has four key parameters which are common mode impedance, voltage division factor, longitudinal conversion loss and decoupling attenuation. However the uncertainty estimation for ISN t results is not given in current standards. Therefore based on the measurement procedures, the uncertainty budget and results are given for the measurement results of the four parameters. The uncertainty can be directly used in the uncertainty estimation for common mode disturbance measurements at the telecommunication ports.

关 键 词：计量学 阻抗稳定网络 共模阻抗 电压分压系数 纵向转换损耗 去耦合衰减 不确定度 

分 类 号：TB973[一般工业技术—计量学]