Relationship between d.c. volts and electrolysis in steel

Click For Summary
SUMMARY

The discussion centers on the use of a 10V AC signal for a steel sensor (SMO 254) in wastewater applications, highlighting the avoidance of DC voltage due to its electrolysis effect. The concern is that introducing a DC component could lead to the degradation of the sensor over time. Participants suggest researching the polarization curve, which illustrates the relationship between applied potential and current for SMO 254, to better understand the electrolysis impact on the sensor.

PREREQUISITES
  • Understanding of electrolysis and its effects on metals
  • Familiarity with AC and DC voltage applications
  • Knowledge of sensor technology, specifically SMO 254
  • Basic principles of electrical conductivity in liquids
NEXT STEPS
  • Research the polarization curve for SMO 254 to analyze electrolysis effects
  • Investigate methods to mitigate electrolysis in metal sensors
  • Explore the relationship between DC voltage levels and corrosion rates in metals
  • Learn about alternative sensor materials that resist electrolysis
USEFUL FOR

Engineers, technicians, and researchers involved in wastewater management, sensor design, and corrosion prevention will benefit from this discussion.

stevecarson
Messages
4
Reaction score
0
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
 
Engineering news on Phys.org
One probably wants to find the polarization curve, i.e. applied potential vs log I (current), for SMO 254.
 

Similar threads

Graduate Avalanche photon detectors
  • · Replies 0 ·
Replies
0
Views
846
E-textiles EMC/FCC and durability issues
  • · Replies 1 ·
Replies
1
Views
2K
News Weapons of Mass Destruction found already.
  • · Replies 36 ·
2
Replies
36
Views
8K