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Current Averaging (Aperture) with AutoZero

Question asked by bito2000 on Sep 7, 2015
Latest reply on Sep 11, 2015 by bito2000
Hi,

I'm hoping someone can help me understand how aperature/autozero affects the recorded values.
 
I would like to use a 34461A to measure average current consumption averaged over periods of 1s. 
The device under test (DUT) is going to be quite spikey (say 1uA typically bursting to a 10mA for few us).
I'm happy to set/clamp the current range on the DMM (no auto range issues)

Q1. Am I correct in thinking that the Aperature will provide a true average / integration of the current?

Q2. Do I loose measuements during autozero? e.g. say the aperature is set to 1s with auto zero on. After 100s, I will have 100 readings. Does the sum of these readings / 100 = true average for the 100s period? Or is it possible that some current spikes from the DUT will have been lost while the DMM was doing an auto zero?  

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