Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Relationship between d.c. volts and electrolysis in steel

  1. Apr 22, 2009 #1
    We use a 10v a.c. signal through to a small steel sensor (SMO 254) in wastewater - and the control device looks for a conductive path to ground to determine that the level of liquid is over the sensor.

    We don't use d.c. because of the electrolysis effect - but the circuit we use could have a d.c. component - which might mean that over a period of time the sensor gets eaten away.

    Is there a graph or formula for increases in d.c. voltage vs electrolysis effect (e.g. mm/yr)?

    Thanks
    Steve
    Brisbane
     
  2. jcsd
  3. Apr 23, 2009 #2

    Astronuc

    User Avatar
    Staff Emeritus
    Science Advisor

    One probably wants to find the polarization curve, i.e. applied potential vs log I (current), for SMO 254.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook