On Tue, 11 Apr 2023 15:45:29 -0400, Brian Kunde <[email protected]> wrote:
> 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 If you want to ignore the contact resistance, did you tried four-point probe method? https://www.suragus.com/en/technology/four-point-probe/ Regards, Tom - ---------------------------------------------------------------- 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 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 <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
