24小时热门版块排行榜    

Znn3bq.jpeg
查看: 3795  |  回复: 5
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

muxinzi

银虫 (小有名气)


[交流] CV曲线面积的计算方法

请问CV曲线用origin积分求面积时,应该选择mathematical area 还是absolute area?积分的目的就是计算CV曲线包围的全部面积。该面积算出来用于计算电容,所用的公式是C=S/(2vU),那用那种面积呢?看了很多帖子,有的说用absolute  area,有的说用mathematical area,众说纷纭。还请高手指点
回复此楼

» 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

反方向的时钟

金虫 (小有名气)



小木虫: 金币+0.5, 给个红包,谢谢回帖
数学积分相对来说更合理,而绝对积分的话面积要比实际面积大
5楼2014-04-09 22:26:30
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 6 个回答

冷雨夜7618

银虫 (正式写手)



小木虫: 金币+0.5, 给个红包,谢谢回帖
你搞懂了吗?到底选哪个
3楼2014-03-27 10:19:03
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

wentaoyao

木虫 (小有名气)



小木虫: 金币+0.5, 给个红包,谢谢回帖
The mathematical area in origin represents the area of the algebraic sum of trapezoids. Whereas the absolute area is the sum of absolute trapezoid values.
For area under the curve (in CV, which sweeps the positive and negative current, during forward and reverse scan) you have to consider the following facts...
If you use (Option 1) Mathematical area, which is nothing but the algebraic sum of the trapezoids, what ever the negative current you are getting will be subtracted from the positive current (or vice versa)... Hence you will be having the difference in the positive and negative values of area [If both sides of the axis is same you will have "ZERO" as a result... .
If you use (Option 2) Absolute area, which is the sum absolute trapezoid values, you will lose nothing. Hence you will get the absolute value of the area under the curve...
Hence abs area gives the original value of the area under curve
6楼2019-12-25 09:37:05
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 260求调剂 +3 Zyt1314520.. 2026-04-17 4/200 2026-04-17 21:06 by Eurekall
[考研] 一志愿沪9,326求生物学调剂 +11 刘墨墨 2026-04-13 11/550 2026-04-17 15:35 by wanganpin
[考研] 恳请有学校收留 +8 柯淮然 2026-04-12 8/400 2026-04-17 09:34 by 猪会飞
[考研] 307中医考研调剂 +6 于以采蘩 2026-04-14 6/300 2026-04-16 16:20 by qingfeng258
[考研] 291求调剂 +11 关忆北. 2026-04-14 11/550 2026-04-16 15:18 by jiahl2024
[考博] 申博自荐 +3 Linxia林夏 2026-04-13 3/150 2026-04-16 12:55 by 墨荷之露
[考研] 279学硕食品专业求调剂院校 20+7 孤独的狼爱吃羊 2026-04-12 29/1450 2026-04-16 09:00 by screening
[考研] 297,工科调剂? +10 河南农业大学-能 2026-04-14 10/500 2026-04-15 21:50 by noqvsozv
[考研] 通信工程求调剂!!! +6 zlb770521 2026-04-14 6/300 2026-04-15 20:00 by 学员JpLReM
[考研] 材料工程281还有调剂机会吗 +43 xaw. 2026-04-11 44/2200 2026-04-15 12:46 by 西北望—风沙
[考研] 各位老师好,求调剂,本科211,一志愿天津大学生物与医药学硕,差两名录取。 +11 路六六jjj 2026-04-13 11/550 2026-04-14 16:01 by zs92450
[考研] 求调剂 +12 何气正 2026-04-13 13/650 2026-04-14 14:47 by zs92450
[考研] 考研求调剂 +6 ban班小七 2026-04-11 6/300 2026-04-14 14:06 by 哆啦A梦只是个梦
[考研] 2026硕士调剂_能动_河南农业大学 +4 河南农业大学-能 2026-04-12 4/200 2026-04-13 22:01 by bljnqdcc
[考研] 一志愿中南大学 0855 机械 286 求调剂 +11 不会吃肉 2026-04-12 11/550 2026-04-13 21:59 by bljnqdcc
[考研] 290求调剂 +18 柯淮然 2026-04-12 20/1000 2026-04-13 12:56 by cyh—315
[考研] 一志愿085802 323分求调剂 +13 drizzle_9 2026-04-12 14/700 2026-04-13 10:26 by Faiz5552
[考研] 291求调剂 +8 关忆北. 2026-04-11 8/400 2026-04-12 09:32 by 逆水乘风
[考研] 调剂求助 +6 果然有我 2026-04-11 7/350 2026-04-11 16:22 by 明月此时有
[考研] 调剂 +5 文道星台 2026-04-11 5/250 2026-04-11 15:01 by 凯凯要变帅
信息提示
请填处理意见