Harmonic calculator by emonlib

Hello to the community, is there any way of calculating the harmonics from the data obtained with the library emonlib? Do you know if there is any formula?
Thank you very much to all.

Robert Wall's picture

Re: Harmonic calculator by emonlib

EmonLib will most certainly not provide you with enough data for that.

MartinR developed a spreadsheet sketch that implemented the discrete Fourier Transform, that I believe would run on an emonTx, but that did not use emonLib. I've used the same approach but with the data recorded by a soundcard.

p8t4's picture

Re: Harmonic calculator by emonlib

OK thank you very much.

Robert Wall's picture

Re: Harmonic calculator by emonlib

Oops! That post was a bit tangled. What I meant to write was: "MartinR developed a sketch that implemented the discrete Fourier Transform that I believe would run on an emonTx." I actually had it as a spreadsheet, as using 882 or 960 data points (1 cycle of mains, sampling at 44100 or 48000 samples per second) is a bit much for an emonTx.

Robert Wall's picture

Re: Harmonic calculator by emonlib

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