Consider that I measure a 60hz sine wave with an RMS of lets say 220 volts (peak amp ≈ 220*√2). Now I measure it with a sample rate waay above 60hz (sample rate of above 6000 S/s).
The question is, how will the sample rate impact on the RMS? Will RMS be affected as I slow down the sample rate / speed up the sine wave?
I've played in MATLAB, and of course the whole thing goes bananas the closer the signal frequency gets to sample rate.
I've searched and googled but couldn't find more information specifically about sampling rates and RMS relationship.
Aside from Nyquist rate and similar, the RMS measurement shouldn't be affected as long as the sample rate > 2*B . Below that, anything can come out but generally lower. Is this a valid statement?
What are your thoughts on this? I appreciate any comment and suggestion about where I should look further, because I really want to understand this thing.
Thanks for the great forum!
The question is, how will the sample rate impact on the RMS? Will RMS be affected as I slow down the sample rate / speed up the sine wave?
I've played in MATLAB, and of course the whole thing goes bananas the closer the signal frequency gets to sample rate.
I've searched and googled but couldn't find more information specifically about sampling rates and RMS relationship.
Aside from Nyquist rate and similar, the RMS measurement shouldn't be affected as long as the sample rate > 2*B . Below that, anything can come out but generally lower. Is this a valid statement?
What are your thoughts on this? I appreciate any comment and suggestion about where I should look further, because I really want to understand this thing.
Thanks for the great forum!