传导瞬态骚扰发生器校准的不确定度评定——对IEC 61000-4-xx中测量不确定度的解读  

Uncertainty Evaluation of Conducted Transient Disturbance Generator Calibration——Interpretation of Measurement Uncertainty in IEC 61000-4-xx

作　　者：谢鸣[1] 白冰[1] 林浩宇[1] 黄攀[1] Xie Ming;Bai Bing;Lin Haoyu

机构地区：[1]中国计量科学研究院

出　　处：《安全与电磁兼容》2022年第1期28-38,63,共12页Safety & EMC

基　　金：国家重点研发计划项目:复杂信号场强溯源与定量模拟关键技术(2021YFF0600303)。

摘　　要：在电磁兼容检测设备的校准领域,有些设备校准的不确定度评定难度较大,IEC 61000-4-xx系列标准中给出的不确定度评定概念清晰、方法合理,但标准中省略了很多测量模型的推导过程,导致有些人不容易搞明白模型是如何建立的,致使系列标准中给出的不确定度评定方法至今在国内难以推广。文章给出了测量模型的详细推导过程,并以浪涌发生器校准为例,详细阐述了浪涌开路电压和浪涌短路电流的上升时间、峰值、持续时间以及脉冲磁场的不确定度评定过程,并针对当前数字示波器的特点,对该方法的实际应用展开讨论。人们可以举一反三,评定该系列标准中其它瞬态骚扰发生器校准的不确定度。In the field of calibration of electromagnetic compatibility testing equipment,it is difficult to evaluate the uncertainty of calibration of some equipment.The concept of uncertainty evaluation in IEC 61000 4-xx series standards is clear and the method is reasonable,but the derivation process of many measurement models is omitted in the standard,which makes it difficult for some people to understand how to establish the model.As a result,the uncertainty evaluation method given in the series of standards is still difficult to popularize in China.In this paper,the detailed derivation process of the measurement model is given,and taking the surge generator calibration as an example,the uncertainty evaluation process of the rise time,peak value,duration of surge open circuit voltage and surge short circuit current as well as the pulse magnetic field are described in detail,and the practical application of this method is discussed according to the present of commercial digital oscilloscopes.The uncertainty of calibration of other transient disturbance generators in the series of standards can be evaluated by drawing inferences about other cases from one instance.

关 键 词：校准 测量模型 不确定度 脉冲 浪涌 脉冲磁场 

分 类 号：TN03[电子电信—物理电子学]