Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
creating a pulse train
Posted 2 ago 2015, 06:30 GMT-4 Materials, Studies & Solvers Version 4.4 1 Reply
Please login with a confirmed email address before reporting spam
hi,
I have seen some answers to this question, but non of them works for me, so I will ask here again:
I built a model, trying to solve an electrical problem. my boundary condition is "electric potential".
I want this potential to be short pulses (100 microsec) with a frequency of 1Hz.
1) when I tried doing this with rect, and then an analytic function. The plotting of the pulses in the function's window seemed right, however,in the simulation I received only the first pulse.
2) when trying to do this manually, by writing the vector of the pulses in the "electric potential" window, i could do several pulses only if they were close together in time, but not if they are 1 sec apart.
can anyone suggest a solution?
thanks
Noa
I have seen some answers to this question, but non of them works for me, so I will ask here again:
I built a model, trying to solve an electrical problem. my boundary condition is "electric potential".
I want this potential to be short pulses (100 microsec) with a frequency of 1Hz.
1) when I tried doing this with rect, and then an analytic function. The plotting of the pulses in the function's window seemed right, however,in the simulation I received only the first pulse.
2) when trying to do this manually, by writing the vector of the pulses in the "electric potential" window, i could do several pulses only if they were close together in time, but not if they are 1 sec apart.
can anyone suggest a solution?
thanks
Noa
1 Reply Last Post 2 ago 2015, 11:07 GMT-4
Please login with a confirmed email address before reporting spam
Posted:
9 years ago
Perhaps you have seen my analytical function for producing a pulse train with arbitrary pulse widths and frequencies. But when using it in a time dependent solution, you must also use similar kind of time stepping to see the pulses.
Just for the sake of argument, I attach my function again.
BR
Lasse
Just for the sake of argument, I attach my function again.
BR
Lasse
Attachments: