A new sensor enables real-time monitoring of corrosion in offshore mooring lines
The solution, which is based on measuring electrical resistance, quantifies material loss in the links and helps predict remaining service life to improve maintenance and safety
VICINAY MARINE and TECNALIA have developed a sensor that enables remote and continuous monitoring of corrosion in the mooring lines of offshore infrastructure. The device, designed to operate in demanding marine conditions, provides real-time information on the condition of the chain links, a critical component for the integrity of platforms, mooring systems and other structures subjected to constant stress.
The solution is based on measuring electrical resistance: as corrosion reduces the metal cross-section, the material’s resistance changes, allowing the loss of thickness to be estimated quantitatively. With this data, it is possible to model degradation, detect anomalous trends and calculate the remaining service life of the monitored component.
According to the project’s initiators, the aim is to provide a tool to support predictive maintenance that reduces reliance on complex and costly physical inspections — particularly in deep-water or hard-to-reach environments. Continuous monitoring makes it easier to plan interventions with greater precision, minimise unplanned downtime and enhance the safety and reliability of the facilities.
In addition to its use in offshore mooring lines, the technology could be adapted for other metal assets that are submerged or exposed to corrosive environments, such as port infrastructure, naval applications or offshore wind power facilities. The sensor will be unveiled at the Navalia trade fair (Galicia), which takes place from 18 to 21 May.
