| 查看: 5176 | 回复: 8 | ||||
| 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 | ||||
[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) |
回复此楼» 收录本帖的淘帖专辑推荐
 我要当学术帝 | 金属电化学腐蚀 |
» 猜你喜欢
锆合金吸氢材料
已经有0人回复
-
求助电化学测试原理，电化学测试技术分析等PPT
已经有0人回复
-
分析化学论文润色/翻译怎么收费?
已经有131人回复
-
26年电池方向博士申请
已经有2人回复
-
关于废氧化铝制备聚氯化铝的现状
已经有3人回复
-
高层次人才招聘
已经有0人回复
-
华中农业大学植物科学技术学院李国田老师课题组劳动聘用制科研助理招聘公告
已经有20人回复
-
endnote官网打不开
已经有0人回复
-
推荐一款思路新颖的论文写作工具Flowing
已经有0人回复
9楼2014-08-05 09:14:14
zhenwuhuang
至尊木虫 (文学泰斗)
- 应助: 4351 (副教授)
- 金币: 9949.3
- 散金: 1
- 红花: 137
- 帖子: 65955
- 在线: 2442.7小时
- 虫号: 2227382
- 注册: 2013-01-07
- 性别: GG
- 专业: 人类营养
【答案】应助回帖
★ ★ ★ ★ ★ ★
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
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
3楼2014-07-30 11:49:36
4楼2014-07-30 11:50:04