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    A Review of Coupled Multielectrode Array Sensors for Corrosion Monitoring and a Study on the Behaviors of the Anodic and Cathodic Electrodes

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    Localized corrosion is often the cause of many failures and unplanned shutdowns in industry. For example, statistics have shown that more than 80 % of the corrosion-induced failures in the chemical processing industry are due to localized corrosion, rather than general corrosion. Thanks to the advancement in coupled multielectrode array sensors (CMAS) technology, localized corrosion rates can now be quantitatively measured. If interfaced with controllers, CMAS probes can be used to automatically control the dosing of corrosion inhibitors and reduce the cost for corrosion control. This paper presents an overview for the CMAS technology and the experimental data that verifies the working principles of the CMAS for localized corrosion rate measurement.


    multielectrode sensor, multi-electrode sensor, multiple electrode sensor, corrosion monitoring, corrosion sensor, localized corrosion sensor, multielectrode array, coupled multielectrode, array sensor

    Author Information:

    Yang, Lietai
    Southwest Research Institute®, San Antonio, Texas

    Chiang, K. T.
    Southwest Research Institute®, San Antonio, Texas

    Committee/Subcommittee: G01.11

    DOI: 10.1520/STP48743S