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How Data Logger Acquire AC data

Question asked by garypty on Nov 19, 2018
Latest reply on Nov 20, 2018 by Tardz

I can set my data logger (34970A) to acquire AC voltage at about 50 reading per second, or 20ms per data. I would like to ask how is the data logger measure an AC value? Is it sampling the signal at a much higher rate (higher than 50 sample/second) and calculate the root-mean-square AC value, then only show the result at 50 per second?If so, what is the sampling rate of the data logger?

 

If it is not sampling at a much higher rate, but at 50 sample/second, how can it calculate the AC value for each data shown?

 

Thank you very much.

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