Sorry, too late. A few years back I cut myself on copper quilted foil. Hurts like the dickens.
-Doug Douglas E Powell Laporte, Colorado USA doug...@gmail.com http://www.linkedin.com/in/dougp01 On Thu, Apr 29, 2021 at 11:09 AM David Garnier <dsgarn...@att.net> wrote: > Story. > > This happened 20+ years ago so don't shoot me. > > An outside vendor was supplying the Operator Interface Console for > our new Ultrasound machine. This console was a slick EMC design, > each of the 11 or more rotary encoders that used low power CPU's that > went to sleep after rotation. I was told the PIC chips were parasitic > powered to reduce EMC. Wow, nice considering diagnostic Ultrasound > was essentially a multi channel sub-microvolt receiver with a piezoelectric > transducer as the patient antenna. > > The new machine was failing RE on the 10m OATS and the operator > interface console EMC Engineer came to visit us to see why. > "How good are your 360 degree shielded connectors?" "We don't know." > The EMC Engineer then looks at us and says some to the effect, > "Oh goody, this is the part I like the most." He whips out his pocket knife > and starts pealing off the hard plastic over-molded connector... > The project engineer and myself looks at each other with our mouths > hanging open while the connector was being dissected - and then the > EMC guy cuts himself. I felt bad for him, he was a "sharp" EMC > engineer and he did find the problem. > > Moral to this story - Don't cut yourself! > > Dave Garnier - Retired GEHC > > Dave Garnier - Retired GEHC > > - > ---------------------------------------------------------------- > 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 < > emc-p...@ieee.org> > > 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 <sdoug...@ieee.org> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> > -- Douglas E Powell doug...@gmail.com http://www.linkedin.com/in/dougp01 - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> 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 <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
