Re: HV Measurement - The Divider Problem (fwd)

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Date: Thu, 23 Sep 2004 15:44:56 -0700
From: Ed Phillips <evp@xxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: HV Measurement - The Divider Problem (fwd)

"That approach will give errors if you are measuring voltages at 
frequencies more than a few Hz. Proper divider design demands 
compensation to avoid the thing behaving like a LPF. For that reason, 
two resistors instead of a string of, say, ten or twenty could make 
building compensation in interesting. NOte that the meter input shunt 
capacitance also has to be taken into account when compensating.
 
Malcolm"

	Thought the measurements were at DC.  Can't imagine getting good
compensation on a really high resistance divider.

Ed