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Current sources with different frequencies

Posted Dec 10, 2018, 10:29 a.m. EST 1 Reply

Reuben Ng
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Greetings,

I am trying to simulate interferential stimulation, where 2 pairs or more electrodes are applying different AC frequencies. Is it possible to do that in COMSOL? It seems that when I use frequency domain I can only use one frequency at a time.

Thanks.

1 Reply Last Post Dec 10, 2018, 2:05 p.m. EST
Edgar J. Kaiser Certified Consultant
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Posted: 6 years ago Dec 10, 2018, 2:05 p.m. EST

Reuben,

as long as the model physics is linear, different frequencies will not interact. So you can do a frequency sweep and look at the components in post processing. If the model is nonlinear you have to do a transient study and there you can apply any waveform, e.g. a superposition of different harmonic signals.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Reuben, as long as the model physics is linear, different frequencies will not interact. So you can do a frequency sweep and look at the components in post processing. If the model is nonlinear you have to do a transient study and there you can apply any waveform, e.g. a superposition of different harmonic signals. Cheers Edgar

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