[SI-LIST] resend Re: How to Measure Ground Noise

  • From: Doug Smith <doug@xxxxxxxxxx>
  • To: SI-List <si-list@xxxxxxxxxxxxx>
  • Date: Thu, 07 Apr 2005 11:06:40 -0700

Subject:
[SI-LIST] Re: How to Measure Ground Noise
From:
Doug Smith <doug@xxxxxxxxxx>
Date:
Wed, 06 Apr 2005 13:01:22 -0700
To:
si-list@xxxxxxxxxxxxx

I received a not very helpful error message for my post to Pyng, so 
here is a retry:

Hi Pyng,

There are some articles on my website that bear on your problem.

http://emcesd.com/tt070199.htm
http://emcesd.com/tt061400.htm
http://emcesd.com/tt2001/tt010101.htm
http://emcesd.com/tt2002/tt090102.htm (especially important to your issue)

Hope some of these articles help.

Doug


......many lines deleted

 >>
 >>
 >>
 >> ospyng wrote:
 >>
 >>
 >
 >>>>hi,
 >>>>I was taught to measure ground noise, by having the ground of the
 >>>>probe connect to ground TP of the board and the tip of the probe
 >>>>measuring the same TP.
 >>>>
 >>>>is this the correct where? and Why?
 >>>>is it because of the ground cable (3 inch) cause a loop, 
therefore the
 >>>>reference and the tip of the probe has a different voltage?
 >>>>
 >>>>thanks
 >>>>pyng
-- 
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