In message <[email protected]>, dated Thu, 3 Apr 2008, John Barnes <[email protected]> writes:
>My gut feeling is that even between Denver, Colorado and sea level, >atmospheric-pressure's effect on a product's susceptibility to ESD has >*at most* a couple percent of the effects of numerous other factors: >* What the product happens to be doing during when the arc starts. >* Tolerances between production units. >* The "pointiness" of the product at the point that we hit. >* The speed of approach of the ESD tip to the product. >* The angle at which we approach the surface of the product. >* Uncontrolled characteristics of the ESD gun. >* The position/velocity of the ground strap of the ESD gun with >respect > to the product when the arc starts. >* Etc., etc., etc. You shouldn't have published that! The metrologists will now want uncertainty estimates for each factor, especially the three et ceteras.(;-) -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Murphy's Law has now been officially re-named The Certainty Principle John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
