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趨膚效應的驗證

最近和一個美國的工程師討論了一下 趨膚效應, 他告訴我不用考慮趨膚效應對溫升的影響,他們做過實驗的, 請問有人做過此實驗嗎,結果怎樣??

我貼上他的E-email供參考:
An experiment was performed to determine if skin effect is an issue.  The result was that skin effect is not an issue so the multi-strand wire will not help.( Note: the experiment was to measure temperature rise during actual operation with the actual high frequency waveforms and compare that to the temperature rise of the inductors with the same RMS value of DC current pumped through them with a DC power supply.   There was no significant difference in temperature rise that couldn’t be accounted for.)
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hlp330
LV.9
2
2009-07-07 17:24
我覺得這個實驗有些缺陷
他是用高頻交流電流和直流電流做比較的(且不考慮線徑是否大于2倍的穿透深度),這兩種電流對于磁芯的損耗都是不一樣的,不具備可比性.
考不考慮趨膚效應,可以用多股線做下實驗就知道了.
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ayong168
LV.5
3
2009-07-07 17:32
我是做大功率電源的,集膚效應把俺手指粗一根的銅棒都燒掉,把大銅棒換成多股線材搞定,還不要考慮溫升?
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evdi
LV.6
4
2009-07-09 23:11
@ayong168
我是做大功率電源的,集膚效應把俺手指粗一根的銅棒都燒掉,把大銅棒換成多股線材搞定,還不要考慮溫升?
應該是阻抗與阻值的區(qū)別.
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