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-   -   Question on Power Measurements from Scope Vs Meter (http://www.jonnyguru.com/forums/showthread.php?t=14641)

turkey3_scratch 07-12-2017 02:59 PM

Question on Power Measurements from Scope Vs Meter
 
Let's say a meter that updates 10 times a second is being used to measure power. Every 1/10 of a second when the number updates, is that number representative of the instantaneous power at that moment or the average power over the span of 0.1 seconds?

Same question applies to a scope. Let's say the oscilliscope updates like 1000 times a second. Is that power at a single point actually the instantaneous power at that point in time, or rather is it a generally good representation of instantaneous power while technically being average power over 0.001 seconds?

jonnyGURU 07-12-2017 04:24 PM

Depends on how it's set. Could be peak, could be RMS, could be captured at that moment.


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