Design and implementation of voltage probe for monitoring cathodic protection

Abstract

Corrosion is a natural process where materials, particularly metals, deteriorate due to a chemi- cal reaction with their surroundings.Cathodic protection is a corrosion prevention technique, which safeguards metallic structures. Cathodic protection system monitoring ensures ongoing corrosion pro- tection for metal structures by assessing factors like voltage, current flow ,an dpotentia ldifferences. By doing so, it ensures ongoing corrosion protection, maintains the integrity of metal assets, extends their lifespan, prevents expensive damage, and guarantees optimal system performance. The primary objective of this project is to develop and implement a specialized voltage probe ded- icated to monitoring cathodic protection systems. The focus is on designing a robust and efficient solution that ensures accurate and consistent voltage readings, thereby enhancing the overall perfor- mance and reliability of the monitoring system. The research developed a specialized voltage probe for accurate measurement of potential dif- ference between reference electrodes and pipeline surfaces. The probe design incorporated high- precision components and advanced circuitry in a compact size. Thorough testing and calibration validated the probe’s accuracy and stability under various operating conditions. In the implementation phase, the voltage probe was integrated into a cathodic protection monitor- ing system. It was connected to a data acquisition system based on a microcontroller, enabling data collection and analysis. Custom software was developed to process the acquired voltage data, provid- ing comprehensive visualization and reporting features for monitoring the system’s performance and detecting any potential issues. Field trials were performed on a simulated cathodic protection installation to assess the effective- ness of the designed voltage probe and monitoring system. The results demonstrated the system’s accurate monitoring capability, enabling proactive maintenance and troubleshooting for cathodic pro- tection performance. This research contributes to the fiel db yintroducin ga ninnovativ ean dreliable solution for monitoring critical voltage levels in corrosion prevention.