I have been given two samples of metal plates; one plated in our current material and the other with a new plating material we want to switch to in production. I have been tasked to compare the electrical surface conductivity.
What is the best way to do this? How is this done in the industry? I have tried the following methods; 1. DMM (Ohm Meter) = inconclusive results 2. Used 5 volts from a current limited power supply and measured the current = inconclusive results 3. Used our Ground Bond Tester set to 60 amps. One plate measured 3-4mΩ, the other 1-3mΩ I measured 1 inch apart and from corner to corner. Test #3 above is the only test that showed any difference. BTW, I use 3/4" squares of soft braid material between the probes and surface. The probes are zeroed out between tests. So far, I can conclude that the new material is as good as, or slightly better than our current production plating material. What more can I do, within reason? Thanks to all. The Other Brian - ---------------------------------------------------------------- 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 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: Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
