工频磁场抗扰度系统的自动校准技术研究

Research on Automatic Calibrating Technology of Power Frequency Magnetic Field Immunity System

针对工频磁场抗扰度系统校准规范缺失的现状,依据有关国家和国际标准,对工频磁场抗扰度系统的自动校准技术做了系统研究。提出了需要校准的4类参数,即:输出电流值、总谐波畸变率、线圈常数和磁场均匀区。对每类参数给出了校准方法及线路,设计了自动校准系统,并通过试验进行了验证。这些工作为规范该系统的校准及为下一步编写校准规范奠定了技术基础。

A research on the automatic calibrating technology of power frequency magnetic field immunity system is carried out based on national and international standards for absence of calibrating regulation.Three kinds of parame- ters are provided together with the dedicated calibrating methods and circuits.And then,an automatic calibrating system is design to improve calibrating quality and efficiency.This job lays the technical foundation to regulate the calibrating activities and establish the calibrating regulation subsequently.