The capacitor model MUST contain some nonlinear element. We can clearly see it from measurements. The model based on linear elements only is WRONG.
Fitting over a range of amplitudes could uncover a change in R's and C's with current/voltage which could be fit to a non-linear function for each component. BTW SPICE has no problem with polynomial descriptions for R and C.
https://www.cadence.com/rl/Resources/application_notes/nonlinear_capacitor_model_appnote.pdf
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OK, then the question would follow: if the non-linearity is not caused by the DA, what other 'parts' of the capacitor could then cause it? Except for the dielectricum, there's the electrodes, the wires, what else. What do we know about those in regard to nonlinearity?
Vacuphile brought up air condensors from vintage radio's. Do they show nonlinearity?
Jan
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Not a question that particularly interests me actually.
This whole thing began when Richard claimed it was DA that was responsible for the capacitor distortion he said he had measured. He stated this unequivocally, and just as unequivocally said that the DA models needed to be revisited to include this non-linearly.
He was asked just how he was able to isolate DA as being the culprit, given that DA was quite accurately modeled using linear elements. And that is what led to this train wreck.
My point has simply been that DA isn't this hugely frightening audiophile Bogey Man that it's been made into by Richard, John and others over the years.
se
Well sure, but given that we DO have cap distortion, I'm surprised you're not curious to know where it comes from. That might help us to select the right cap for a specific purpose.
But hey, it's not my beef either.
Jan
Dielectric polarizability (the origin of dielectric constant) is not perfectly linear.
If it works as advertised it would kill wifi, mobile phones and remote controls! Stunningly detailed description of nothing on the website though.
Go and watch the esotheric/homeopathic scene, there is *Quantum* en vogue!
Nano is bad, think Nanobots!😉
Yeah, but in audio, nano is good. That's the latest buzzword being sprinkled on the Bybee cat turds.
EDIT: Wow. "Turds" isn't on the nanny list. Cool! 😀
se
Its hard to find something new. Last night, i had an idea to explain some phenomenas i observed. Googeling about it, it appears some obscure scientist had already had the same, some decades ago, and called-it "Theory of Relativity ".
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