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碧水泠泠

金虫 (正式写手)

[求助] 恒相角原件CPE与QPE 已有2人参与

想知道恒相角原件CPE与QPE的区别。在Zview中有恒相角原件CPE与QPE两种,请问两者有区别么?还有就是CPE中的CPE-T与CPE-P分别指的什么?QPE中的Q与n分别指的什么?都有何含义呢?谢谢。还有就是他们的等效电路图都用Q表示么?比如R(QC)
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碧水泠泠

金虫 (正式写手)

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2楼: Originally posted by zhenwuhuang at 2014-07-27 14:02:30
Parameters: CPE-T, CPE-P
The CPE is defined by two values, CPE-T and CPE-P. If CPE-P equals 1 than the equation is identical to that of a capacitor. If CPE-P equals 0.5, a 45 degree line is produced ...

还有就是能把你的这篇参考文献发给我一下么?谢谢
4楼2014-07-30 11:50:04
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zhenwuhuang

至尊木虫 (文学泰斗)

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感谢参与,应助指数 +1
碧水泠泠: 金币+6, ★★★★★最佳答案 2014-07-30 11:48:21
Parameters: CPE-T, CPE-P
The CPE is defined by two values, CPE-T and CPE-P. If CPE-P equals 1 than the equation is identical to that of a capacitor. If CPE-P equals 0.5, a 45 degree line is produced on the Complex-Plane graph. When a CPE is placed in parallel to a resistor, a Cole-Element (depressed semi-circle) is produced.
Often a CPE is used in a model in place of a capacitor to compensate for non-homogeneity in the system. For example, a rough or porous surface can cause a double-layer capacitance to appear as a constant phase element with a CPE-P value between 0.9 and 1. In fact, a capacitor is actually a constant phase element - one with a constant phase angle of 90 degrees.
A CPE with CPE-P value of 0.5 can be used to produce an Infinite Length Warburg element. A Warburg element occurs when charge carrier diffuses through a material. Lower frequencies correspond to diffusion deeper into the material. If the material is thin, low frequencies will penetrate the entire thickness, creating a Finite Length Warburg element. If the material is thick enough so that the lowest frequencies applied do not fully penetrate the layer, it must be interpreted as infinite. The CPE produces the same spectrum as the 慼igh frequency?portion of a Finite Length Warburg when  CPE-T = sqrt(W-T) / W-R.
2楼2014-07-27 14:02:30
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碧水泠泠

金虫 (正式写手)

引用回帖:
2楼: Originally posted by zhenwuhuang at 2014-07-27 14:02:30
Parameters: CPE-T, CPE-P
The CPE is defined by two values, CPE-T and CPE-P. If CPE-P equals 1 than the equation is identical to that of a capacitor. If CPE-P equals 0.5, a 45 degree line is produced ...

很有帮助,只是你没有回答问题QPE和CPE是一样的么?QPE的n就相当于CPE-P么?一般CPE-P不是只在0.8以上么?
3楼2014-07-30 11:49:36
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嘀嘟Д小库洛

木虫 (小有名气)

纯洁的魔王

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碧水泠泠: 金币+5, ★★★很有帮助 2014-08-01 10:05:35
一样的。只是结果的表达方式不一样。
最大的差别就是 T = (Q)^n
CPE-T包含了指数项
默默地...
5楼2014-08-01 06:41:52
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