24小时热门版块排行榜    

查看: 4112  |  回复: 9
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

609644581

木虫 (正式写手)


[交流] Zview中各元件代码指的是什么?

如题,小弟用Zview进行拟合时,出现的CPE-T,CPE-P,W-R,W-P,W-T这些代码分别代表的是什么意思,请各位大神能给小弟一些指点,在此先先过大家!请大家不腻赐教!

[ 来自科研家族 锂电池世界 ]
回复此楼

» 收录本帖的淘帖专辑推荐

电化学测试、图像以及分析 测试等

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

» 抢金币啦!回帖就可以得到:

查看全部散金贴

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
★ ★ ★
小木虫: 金币+0.5, 给个红包,谢谢回帖
609644581: 金币+2 2012-07-07 09:26:56
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.
6楼2012-07-06 21:36:05
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 10 个回答

王友81

新虫 (小有名气)



小木虫: 金币+0.5, 给个红包,谢谢回帖
我也 不太明白,等赐教!
2楼2012-07-05 21:49:56
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

nannan8641

新虫 (小有名气)



小木虫: 金币+0.5, 给个红包,谢谢回帖
有文献显示CPE是恒相位元件,不知道具体是指什么
3楼2012-07-06 08:28:36
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

小木虫: 金币+0.5, 给个红包,谢谢回帖
可以看看介绍交流阻抗测试方法的书,都有介绍
4楼2012-07-06 09:25:06
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
简单回复
ygm895257楼
2012-07-07 17:33   回复  
普通表情 高级回复 (可上传附件)
信息提示
请填处理意见