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如何识别高频变压器磁芯
更新时间: 2020-09-24 00:00:00  

磁芯是指由各种氧化铁混合物组成的一种烧结磁性金属氧化物。指针式万用表置于10K档测磁芯上任意两点,指针偏转较大或指零者为锰锌铁氧体磁芯,它的工作频率3MHz以下;指针偏转很小或不动者为镍锌铁氧体磁芯,它的工作频率200MHz以下。需注意的是测量前应将磁芯表面的清漆除净。

关键词: 如何 识别 高频 变压器 磁芯

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