不同磁芯材料对电流探头传输阻抗Z_t的影响

Influence of Magnetic Core Materials on Transfer Resistance Z_t in Current Probe

通过对铁基、钴基非晶合金与铁氧体软磁材料的性能和实际实验结果的分析、比较 ,由于非晶合金自身良好的磁性能 ,将其用于电磁兼容性试验设备中作为低频干扰电流探头的磁芯材料 ,实验证明选用铁基、钴基非晶合金 ,可使电流探头的检测灵敏度、精确度大大提高 。

The results of low frequency interference current probe made from ferrite and from Fe based and Co based amorphous alloy, were compared and analyzed. The potential application of Fe based and Co based amorphous alloy in the experimental eqipment of electromagnetic compatibility (EMC) was discussed based on its good magnetic performance in the test of magnetic core material of the low frequency interference current prob. The sensitivity and precision of current probe could be greatly improved by using the above mentioned amorphous alloy, thus providing experimental bases for the extention of application range of this functional material amorphous alloy.