| 查看: 5329 | 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
请问谁有2025最新影响因子Excel表？金币求助！
已经有53人回复
-
氯化钠与有机磺酸分离
已经有1人回复
-
分析化学论文润色/翻译怎么收费?
已经有269人回复
-
瑞典-博后-固态电池-粘结剂-锂离子电池方向
已经有53人回复
-
广东省面上有什么动态么，啥时候公布呀？
已经有1人回复
-
高盐废水电催化氧化，氯离子存在下活性氯副产物、阳极选型的工程困惑
已经有0人回复
-
固相反应中颗粒形貌变化计算模拟学习求助
已经有0人回复
-
电催化氧化技术处理高盐难降解废水具备独特优势
已经有0人回复
7楼2014-08-01 10:28:21
zhenwuhuang
至尊木虫 (文学泰斗)
- 应助: 4351 (副教授)
- 金币: 9722.3
- 散金: 1
- 红花: 137
- 帖子: 65971
- 在线: 2446.9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
