Electronic Dispositive for Measure Corrosion Rate

In this research, a prototype was designed to measure the corrosion rate in situ using Arduino to program an potential value, to perform a sweep to obtain the electrochemical response in current [1], and using the Stern and Geary's formula to calculate the linear polarization resistance (LPR), after that is use the second faraday's law to obtain the corrosion rate. To make the Arduino system and the electronic circuit work together using a solar panel. The prototype measures the corrosion potential of the electrochemical cell where the working electrode was a 1018 steel, the Ag/AgCI was the reference electrode, the graphite was the counter electrode and a 3.5% NuCl solution was the electrolyte. The tests were achieved in the laboratory, but the purpose of the device is to measure the corrosion rate in-situ at water immersed and buried structures as pipelines.