The Origin Forum
File Exchange
Try Origin for Free
The Origin Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ | Send File to Tech support
Username:
 Password:
Save Password
Forgot your Password? | Admin Options

 All Forums
 Origin Forum
 Origin Forum
 Cyclic Voltammetry Calculation		  New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic

akhan321

Pakistan
4 Posts
Posted - 04/01/2018 :  04:45:53 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hi. I'm using Origin to find area under the curve of my Cyclic Voltammetry data. I have used gadgets tool but I don't know if this is really the area under my curve or not. Attached is the snapshot of the file after integrating. My questions are: 1) is the area shown above the graph the area of the black region? 2) What does the gray region showing?

yuki_wu

896 Posts
Posted - 04/01/2018 :  11:35:07 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

1) No. The area shown on the top is the area of the grey part.
2) Refer to the first answer.

I think you should go through these pages, then you could find out how to calculate the area you want to know:
https://www.originlab.com/doc/Origin-Help/Gadget-Integration
https://www.originlab.com/doc/Tutorials/Integrate-Gadget

Regards,
Yuki
OriginLab
Go to Top of Page

akhan321

Pakistan
4 Posts
Posted - 04/02/2018 :  02:57:54 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
I couldn't find what I was looking for in the above links. I tried playing around with the options in the integrate gadgets dialog box but I still couldn't find the data of my curve.
Go to Top of Page

yuki_wu

896 Posts
Posted - 04/02/2018 :  04:50:09 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

If the plot is made up of two curves, you should take one curve as the baseline and then integrate another curve with this baseline. This is mentioned in Section 4 of this page:
https://www.originlab.com/doc/Tutorials/Integrate-Gadget

If the plot is an enclosed plot, you could calculate the area of this plot region by Analysis: Mathematics: Polygon Area.

Regards,
Yuki
OriginLab
Go to Top of Page

Hideo Fujii

USA
1582 Posts
Posted - 04/02/2018 :  11:52:19 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi akhan321,

You can try "Analysis: Math: Polygon Area" menu, if you want to calculate the area within the
hysteresis curve.

--Hideo Fujii
OriginLab
Go to Top of Page

akhan321

Pakistan
4 Posts
Posted - 04/03/2018 :  03:37:09 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
I tried to use area of polygon but I still can't find the correct area. I'm now using data from a commercial capacitor whose capacitance I already know so i can refine my practice. The formula I'm using is the standard formula used in every paper world wide.
Go to Top of Page
  Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
The Origin Forum © 2020 Originlab Corporation Go To Top Of Page
Snitz Forums 2000