@Ken.Javor - I had to look this up... "erudite". The act of looking it up showed that I am not! Ha!
Thanks again for the Friday humor! -Patrick On Fri, Sep 1, 2017 at 12:39 PM, Ken Javor <[email protected]> wrote: > I made this point (in a less erudite manner) within the TSWG when we were > drafting MIL-STD-461G, but with a requirement such as RE102 already on the > books, we are all well acquainted with uncertainty and unafraid of it... > > Ken Javor > Phone: (256) 650-5261 > > > ------------------------------ > *From: *Douglas Smith <[email protected]> > *Reply-To: *Douglas Smith <[email protected]> > *Date: *Fri, 1 Sep 2017 09:37:45 -0700 > *To: *<[email protected]> > *Subject: *[PSES] Uncertainty in ESD testing > > > I recently replied to another post and mentioned uncertainty in ESD > testing. I thought it would be good to post it separately to start a wider > discussion, so here we go: > > In ESD testing, the poor specification of the simulator in standards, like > IEC 61000-4-2 <tel:61000-4-2> , leads to uncertainty (that one cannot > calculate) that far exceeds any uncertainty calculation one could make on > ESD testing. Until we fix the standards, uncertainty calculation for ESD > testing is meaningless. What is needed is a maximum di/dt limit everywhere > on the current waveform and a radiation spec on the simulator. And this is > only for contact discharge. For air discharge, the large uncertainty of the > discharge itself will likely dominate unless hundreds of discharges are > used at each point to reach statistical significance. > > Doug Smith > Sent from my iPhone > IPhone: 408-858-4528 <(408)%20858-4528> > Office: 702-570-6108 <(702)%20570-6108> > Email: [email protected] > Website: http://dsmith.org > > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to < > [email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to < > [email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.html> > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <[email protected]> > Mike Cantwell <[email protected]> > > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > -- // Patrick - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
