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summer180

新虫 (初入文坛)

[求助] 新手求助磁导率测试问题 已有1人参与

在中频频段下测试了铁氧体的磁导率,为什么测出来的磁导率μ存在负数呀?在测量数据中,有些测量点,磁损耗正切与磁导率虚部实部之比μ''/μ''的正负号相反,不知道是什么原因导致的啊,恳求各位大神帮帮忙,感激不尽啊
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palmer10

木虫 (著名写手)

【答案】应助回帖

设备精度不够。或者样品太小太薄,导致信号太小。
2楼2013-12-12 14:56:30
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jinfei164

铜虫 (初入文坛)

已经解决了吗?
3楼2017-11-24 14:47:07
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