Hello!
I am new to comsol and am still learning a lot of new things, I know my question has probably been asked many times, but I still can't figure a way to solve my problem:
I want to simulate a voltage with two frequencies, such as 50 Hz and 350 Hz to test the influence of the third harmonic on the capacitance/permittivity of my dielectric. I am using the time dependent study and have entered Asin(wt) + A/2sin(3wt) for my voltage electrode, my model looks a little like the AC/DC example of capacitor_ac, except with an additional guard ring. My model works so far, I can see my field lines and have my current values, but I somehow can't simulate the capacitance/permittivity of my dielectric? I have read on this forum that people recommend the frequency domain study to simulate capacitance/permittivity, but I think this study wouldn't be relevant to my problem, since I will be defining my two frequencies. Should I be tackling this problem another way instead? Does somehow maybe have a better idea? Would appreciate help!
Jun