Re: [PSES] Measurement Dilema - THE EXPLANATION!

OK Everyone, here is the explanation: The box is superfluous, it just hides what is actually going on. The box contains two heavy gauge wires. One shorts the two tips sig and gnd together and the other connects the center point of the first wire to the center pin of the BNC connector. This is

Re: [PSES] Measurement dilema

Not really. Full disclosure tomorrow when I get settled in the office. It is actually simpler than one might imagine, just will take me a fair amount of typing so need a real keyboard not an iPhone. Doug Smith Sent from my iPhone IPhone: 408-858-4528 Office: 702-570-6108 Email: d...@dsmith.org

Re: [PSES] Measurement dilema

from my iPhone IPhone: 408-858-4528 Office: 702-570-6108 Email: d...@dsmith.org Website: http://dsmith.org On Sun, Jan 28, 2018 at 18:42, Ken Javor wrote: Re: [PSES] Measurement dilema As long as we’re all chiming in here that was my guess as well (probe ground lead parasitics) but I thought the

Re: [PSES] Measurement dilema

rk.com> > Date: Sun, 28 Jan 2018 20:38:56 -0500 To: mailto:EMC-PSTC@LISTSERV.IEEE.ORG> > Subject: Re: [PSES] Measurement dilema How about the different size loops the ground leads on your probes are making. Dale Reid Product Safety Engineer O +1 859 825 4733 re...@lexmark.com <mai

Re: [PSES] Measurement dilema

As long as we’re all chiming in here that was my guess as well (probe ground lead parasitics) but I thought the ground rule :-) was no group replies... Ken Javor Phone: (256) 650-5261 From: Dale Reid Reply-To: Dale Reid Date: Sun, 28 Jan 2018 20:38:56 -0500 To: Subject: Re: [PSES

Re: [PSES] Measurement dilema

How about the different size loops the ground leads on your probes are making. *Dale Reid* Product Safety Engineer *O* +1 859 825 4733 re...@lexmark.com www.lexmark.com On Sun, Jan 28, 2018 at 7:54 AM, Bart De Geeter wrote: > Hi Doug, > > > >Could it b

Re: [PSES] Measurement dilema

Hi Doug, Could it be that there is just a piece of transmission line inside the box terminated with a certain impedance? You might be measuring in the middle of this transmission line. If the input impedance selected on channel A of your oscilloscope is f.e 50 ohm and the

Re: [PSES] Measurement dilema

rtifact of 'differential' sampling. Perhaps companding would do that, dunno. But probably just interference from space aliens. Brian From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Saturday, January 27, 2018 11:44 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Measurement

Re: [PSES] Measurement dilema

It's probably another case of the 80/20 rule. Even with peer-reviewed papers, the long-term opinion may be that 20% at most were of value. John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK On 2018-01-27 19:27, Douglas Smith wrote: Great quote! It

Re: [PSES] Measurement dilema

Great quote! It pretty much describes much of medical research in my opinion. The great thing about engineering is the field is “grounded” (pun intended) in fundamentals. No so much in medicine where money and politics matter as much as science. My hobby when I am not doing engineering is medici

Re: [PSES] Measurement dilema

That is certainly true, but the problem here is there is an error one is not aware of, although this is an extreme example. Doug Smith Sent from my iPhone IPhone: 408-858-4528 Office: 702-570-6108 Email: d...@dsmith.org Website: http://dsmith.org On Fri, Jan 26, 2018 at 17:34, Richard Nute wrot

Re: [PSES] Measurement dilema

Hi Doug: While I don’t yet have the answer (and may never have the answer), I ran across this quote from Luigi Galvani which I think applies here: “For it is easy in experimentation to be deceived, and to think one has seen and discovered what we desire to see and discover.” Best r