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wehrmacht

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[求助] 急求高手指点阻抗谱的拟合分析(等效电路)!

拟合误差较大,尤其低频段(见附图),审稿意见如下:
a) The measured spectra show a big dispersion in the range of semicirles; in terms of equivalent circuit this would mean that the value of exponents in CPE elements is much lower than 1; physical interpretation of such cases can be problematic or even entirely wrong
b) I don't agree that the equivalent circuit can fit the low frequency "diffusional" section. Namely, the Warburg element contains 3 variables while the measured spectra (inclined lines) only give information about 2 of them. This means 1 parameter remains free and no unique fitting of the low frequency part is possible.
急求阻抗高手帮忙拟合一下!!!!事成之后有重谢!
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  • 附件 1 : nyquist.bmp
  • 2015-05-26 23:47:05, 622.74 K
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