电流探头S参数校准方法的研究  

Research on the S-matrix Characterazition of Current Probes

作　　者：周忠元[1] 蒋全兴[1] 蒋宇[1] 方耿[1] 

机构地区：[1]东南大学电磁兼容研究室,江苏南京210096

出　　处：《计量学报》2006年第4期380-383,共4页Acta Metrologica Sinica

基　　金：国家自然科学基金(50277007)

摘　　要：采用S参数法对电流探头特性进行校准,讨论S参数校准过程中的具体技术细节,并与传统校准方法的校准结果进行比较。经验证,电流探头的S参数法校准结果真实可信,尤其适合100MHz以上电流探头的特性校准。在此基础上,利用注入电流探头对同轴电缆的屏蔽衰减进行了测试分析。The current probe is characterized using S-matrix method. The technical details of S-matrix method are described. The measurement results are compared with that using transfer impedance. The experiment result shows the measurement result achieved with S-matrix method is effctive and the S-matrix method is especially suitable for the characterization of current probes above 100MHz. Finally, the shielding attenuation of a coaxial cable is achieved by the S-matrix of an injection current probe.

关 键 词：计量学 电流探头 S参数 校准方法 转移阻抗 

分 类 号：TB973[一般工业技术—计量学]