Corrosion and Environmental Monitoring
Understanding and controlling the corrosivity of an environment is essential to ensure long-term protection of infrastructure, industrial equipment and sensitive environments. Continuous, in-situ monitoring of corrosion and environmental parameters makes it possible to assess material durability, detect degradation risks at an early stage, and optimise preventive maintenance programmes. The French Corrosion Institute develops and markets tailor-made sensor solutions, deployable across a wide range of environments: atmospheric, immersed, buried or under irradiation.
Corrosion Monitoring by Electrical Resistance (ER) Measurements
Among the monitoring techniques commonly used, electrical resistance (ER) sensors offer a robust and reliable solution for corrosion assessment. Their principle relies on measuring the evolution over time of the electrical resistance of a metallic track. As corrosion progresses, the cross-section of the track decreases, causing an increase in the measured electrical resistance. Resistance variations are then converted into metal thickness loss and corrosion rate, enabling real-time evaluation of material degradation.
AirCorr O — Standalone sensor and data logger
Compact, watertight and standalone corrosion monitoring system, designed for use in severe outdoor atmospheric conditions. For immersed or buried applications, the sensor can be connected remotely to the logger via a cable of up to 100 metres, offering great installation flexibility in varied field conditions.
AirCorr T — OEM Transmitter (new)
Designed for applications requiring real-time and continuous data transmission. Using the RS-485 communication protocol, the AirCorr T OEM allows multiple transmitters and ER sensors to be connected to a single data logger. Remote access can be set up for real-time data reading and processing via a dedicated dashboard.
Custom thick ER sensors and tailor-made monitoring solutions (new)
Thick ER sensors (1 to 4 mm), manufactured on demand from industrial materials, for atmospheric, immersed and buried environments. Several ER sensors as well as complementary probes for monitoring weather, hydrological or soil conditions can be integrated into a custom acquisition cabinet offering remote data access via a dedicated dashboard.
Corrosion prediction and artificial intelligence (new)
The simultaneous monitoring of corrosion and environmental parameters through the various sensors makes it possible to build up extensive databases, essential for refining the understanding of corrosion mechanisms across different environments. The French Corrosion Institute therefore offers new services based on artificial intelligence tools to model and predict corrosion phenomena.
Application areas
- Offshore infrastructure: corrosion and cathodic protection monitoring of marine structures
- Onshore infrastructure: monitoring of buried pipelines and structures in soil
- Transport sector: atmospheric corrosivity monitoring on vehicles and structures
- Nuclear: monitoring under gamma irradiation for deep geological disposal of radioactive waste
- Chemical and process industry: monitoring the corrosivity of process environments
Contacts
Johan Becker — johan.becker@institut-corrosion.fr — +33 (0)2 98 05 89 01
Erwan Diler — erwan.diler@institut-corrosion.fr — +33 (0)2 98 05 15 52
LPR Probes and Acoustic Emission
In addition to analysing the corrosivity of the external environment, the French Corrosion Institute offers monitoring of the internal corrosivity of equipment. Degradation monitoring can be performed by installing in-situ corrosion coupons, enabling detailed laboratory analysis of the degradation modes observed. Where the time variability of various parameters linked to the operation of the installations is significant, other techniques can be used such as acoustic emission (AE). Thanks to an acquisition system that can accommodate up to 8 simultaneous channels on an industrial equipment, the analysis of AE data enables the detection of crack propagation within industrial installations in temperature ranges from –65 °C to 175 °C. Similarly, the French Corrosion Institute also offers temporal corrosion monitoring via the tracking of electrochemical values using an « LPR » electrochemical probe (max. pressure 100 bars) programmed and interpreted by an expert.
Contacts
Vincent Martin — vincent.martin@institut-corrosion.fr — +33 (0)4 28 27 03 66
Clément Boissy — clement.boissy@institut-corrosion.fr — +33 (0)4 28 27 03 66
