COMSOL Forums: Measure voltage difference between 2 points on model
http://www.comsol.com/community/forums/general/thread/32122/
Most recent forum messagesTue, 09 Oct 2012 22:48:52 +0000COMSOL Forums: Measure voltage difference between 2 points on modelhttp://www.comsol.com/shared/images/logos/comsol_logo.gif
http://www.comsol.com/community/forums/general/thread/32122/
Re: Measure voltage difference between 2 points on model
http://www.comsol.com/community/forums/general/thread/32122/#p87723
Hi John<br />
<br />
As you say, its better to use a boundary than a 2nd order (down) entity (as a point or edge in 3D), as you might have singularities on calulating flux around a singe point/vertex/edge<br />
<br />
--<br />
Good luck<br />
IvarTue, 09 Oct 2012 22:48:52 +000032122.1349822932.87723Re: Measure voltage difference between 2 points on model
http://www.comsol.com/community/forums/general/thread/32122/#p87716
Vijay,<br />
<br />
I believe all you have to do is (say you are in a 2D model) add two Domain Point Probes (right click on Definitions under [FileName] > Model(#) > Definitions). In one Point Prove Expression, set it equal to V; in the other, set the expression equal to V - mod1.ppb1 (or whatever the probe is). Then you can plot mod1.ppb2 as a function of whatever you like. I believe that this will get you what you want. There may be other ways to do this using a line, and then finding the potential distribution along that line. There is a very detailed explanation of this in the help documents as well.<br />
<br />
<br />
Good luck,<br />
JohnTue, 09 Oct 2012 21:25:59 +000032122.1349817959.87716Measure voltage difference between 2 points on model
http://www.comsol.com/community/forums/general/thread/32122/#p87666
Dear Sir,<br />
I want to know if there is any way i can insert a voltage probe or electrodes in my comsol model, to measure the voltage difference between two points in the model. <br />
Thanking you in advance,<br />
VijayTue, 09 Oct 2012 11:57:12 +000032122.1349783832.87666