Hello,
I am working on a device that will analyse a mains signal to find instantaneous voltage. I will be working with a stepped down domestic mains signal of 12V at 50Hz. I am working on an anti aliasing filter but can't decide on a cutoff frequency. The aim is to take 30 reading per cycle of the signal so therefore I would need to be sampling at a rate of 1500Hz minimum.
If the main signal is at 50Hz I assume there will be a natural tolerance, I also intent to calculate frequency eventually too. Is it possible with distortion that the mains will go much above 50Hz? Should I look to filter out harmonics too?
Regards
I am working on a device that will analyse a mains signal to find instantaneous voltage. I will be working with a stepped down domestic mains signal of 12V at 50Hz. I am working on an anti aliasing filter but can't decide on a cutoff frequency. The aim is to take 30 reading per cycle of the signal so therefore I would need to be sampling at a rate of 1500Hz minimum.
If the main signal is at 50Hz I assume there will be a natural tolerance, I also intent to calculate frequency eventually too. Is it possible with distortion that the mains will go much above 50Hz? Should I look to filter out harmonics too?
Regards