Circuit modeling and hysteresis loop?

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MICHAEL NORRELL
MICHAEL NORRELL 2022-9-13
评论： MICHAEL NORRELL 2023-9-13
Hello,
I am envolved in a project where I need to model an RC circuit BUT the output needs to be displayed as a hysteresis loop ( Field (V/m) v.s. Displacement (Q/m^2)).
I am able to model an RC circuit no problem. I can view voltage on the scope no problem. BUT I cannot find an obivous solution to output the data as a loop.
Is there a module block that does this? Is a solution to capture the voltage across the cap and convert and graph it in matlab code? Please advise any direction.
thanks,
Mike
  2 个评论
Sam Chak
Sam Chak 2022-9-13
Hi @MICHAEL NORRELL
Can you make a basic sketch of what the hysteresis loop of the Field vs. Displacement looks like?
MICHAEL NORRELL
MICHAEL NORRELL 2022-9-13
编辑：MICHAEL NORRELL 2022-9-13
@Sam Chak A pure capacitor will look like a line. As the capacitor gets lossier the line opens to a loop.

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回答（1 个）

Brahmadev
Brahmadev 2023-9-13
Hi Michael,
You can use the "XY graph" block to plot the Hysteresis Curve. Necessary conversions should be made to get the Displacement output from the current and Field from the voltage.
You can refer to the documentation of "Record, XY graph" for more information.
https://www.mathworks.com/help/simulink/slref/record.html
Hope this helps!
  1 个评论
MICHAEL NORRELL
MICHAEL NORRELL 2023-9-13
thank you for the reply. I was able to do something similar to plot collected lab data vs. modeled data. The results will be a soon to be published paper. :)

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