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True RMS measurement with the hp54520A?

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What does your 54520 user reference tell about rms measurements? See e.g. "Automatic measurements available on the oscilloscopes" in specifications chapter.
 

FvM said:
What does your 54520 user reference tell about rms measurements? See e.g. "Automatic measurements available on the oscilloscopes" in specifications chapter.
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It has a Vac rms and a Vdc rms. But I do not know if it is true rms
 

Hi,

I think HP is reliable. If they call it RMS, then it is RMS.

With AC RMS they don't take DC into calculation.

******
But indeed there are many "fake" RMS measurements. They use peak values or rectified average values...multiply it with some factor ..and then they call it RMS.

Klaus
 

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