计算ACRL时为什么也要同时计算DCRL？
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如下图所示，是R L的值随频率变化的曲线，因为趋附效应的影响，在AC region电阻值会随着频率的升高线性增大，电感值会比DC时有所降低，并且随频率变化几乎没有变化，而在DC跟AC中间是存在一个过渡区域。Q3D在计算AC RL时，是不考虑过渡区域的效应的，当频率比较低时，有时会发现ACR比DCR还要小，所以直接输出ACR的数据就不合理了，为了得到准确的ACR的值，需要在计算ACR时勾选DCR，Q3D会基于DC的数据对ACR的数据在过渡区做修正，从而得到准确的结果。
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