COULOMBS COUNTING - A NEW VERSATILE AND USERFRIENDLY ELECTROCHEMICAL NOISE METHOD FOR ONLINE MONITORING OF SYSTEM'S CORROSIVITY

摘要

Due to their non-invasive nature and improved data acquisition, electrochemical noise techniques are about to become a reliable monitoring tool in laboratory and industry. The newly developed CoulCount method, based on current noise measurements, will surely contribute to this due to its versatile applicability. The time-related cumulated noise charges extracted from the noise signals between two electrodes ('identical' and 'non-identical') yield a direct quantitative, easy-to-interpret measure of time-related corrosion intensities. The many advantages of the new software-assisted method are outlined and exemplified in a technical application: screening, optimization and monitoring of the corrosion inhibitor efficiency in water-based hydraulic fluids.