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AC signal
Posted May 11, 2011, 1:30 p.m. EDT Low-Frequency Electromagnetics, MEMS & Nanotechnology, MEMS & Piezoelectric Devices Version 4.1 1 Reply
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Hi,
My name is Fernanda. I have made a simulation where I apply a DC voltage to particular electrodes. In my real experiment, I am switching the voltage of the electrodes every 1ms. I have done the simulation in DC for the two cases; however, I would like to do it with time dependent. I don't know how to do. I would appreciate if you can help me.
My name is Fernanda. I have made a simulation where I apply a DC voltage to particular electrodes. In my real experiment, I am switching the voltage of the electrodes every 1ms. I have done the simulation in DC for the two cases; however, I would like to do it with time dependent. I don't know how to do. I would appreciate if you can help me.
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1 Reply Last Post May 11, 2011, 3:47 p.m. EDT
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Posted:
1 decade ago
Hi
so you say you ave managed to solve it in stationary, then you have two choices for time dependent:
Either you want to look at a transient so you express your "force" values with a time dependent function and you use a transient solver.
Or you you are in a constant frequency oscillation scheme, then you can use the frequency domain solver that does a harmonic development (à la Fourier if you want) and you define the amplitude and the frequency (the latter in the solver settings) You might also efine a frequency range start, step,stop) to get a fequency response.
Sorry I do not have COMSOL with my just now cannot look up your model
--
Good luck
Ivar
so you say you ave managed to solve it in stationary, then you have two choices for time dependent:
Either you want to look at a transient so you express your "force" values with a time dependent function and you use a transient solver.
Or you you are in a constant frequency oscillation scheme, then you can use the frequency domain solver that does a harmonic development (à la Fourier if you want) and you define the amplitude and the frequency (the latter in the solver settings) You might also efine a frequency range start, step,stop) to get a fequency response.
Sorry I do not have COMSOL with my just now cannot look up your model
--
Good luck
Ivar