Unsupervised process monitoring of corrosion based on electrochemical noise and multivariate image analysis

Unsupervised process monitoring of corrosion based on electrochemical noise and multivariate image analysis

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Abstract Electrochemical noise (EN) is a crucial technique in the monitoring of corrosion systems due to its ability to provide real-time, non-intrusive insights into the corrosion process.By measuring here the spontaneous fluctuations in voltage and current that occur naturally in a corroding system, EN allows for the detection of localised corrosion events, such as pitting, without the need for external perturbation.In this investigation, a multivariate statistical process monitoring framework (MSPC) based on the use of deep learning models and principal component analysis (PCA) is proposed.Electrochemical noise associated with uniform corrosion is segmented with a sliding window, with the segments converted to images from which features are extracted with deep learning models.Finally, these features are used to construct a principal component model that can be radio birdman tshirt used to detect deviations from uniform corrosion.