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07363 Methods for the Visualization of Electrochemical Noise Data

Product Number: 51300-07363-SG
ISBN: 07363 2007 CP
Author: Robert A. Cottis and R. Cotta
Publication Date: 2007
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The use of electrochemical noise (EN) measurements for the study of corrosion processes is now well established, but it remains somewhat unclear as to the best methods to use the extract useful information from the measured time records. Many of the simpler methods are based on the calculation of statistical parameters, such as the standard deviation of current, sI, or potential, sE, and the electrochemical noise resistance, Rn. A problem with many parameters derived from EN measurements is they are inherently noisy, which can make interpretation difficult. This paper explores an alternative method of plotting these parameters that may offer some advantages. The method is inspired by the method developed by Schmitt, and the relationship between this method and conventional statistical parameters is examined.
The use of electrochemical noise (EN) measurements for the study of corrosion processes is now well established, but it remains somewhat unclear as to the best methods to use the extract useful information from the measured time records. Many of the simpler methods are based on the calculation of statistical parameters, such as the standard deviation of current, sI, or potential, sE, and the electrochemical noise resistance, Rn. A problem with many parameters derived from EN measurements is they are inherently noisy, which can make interpretation difficult. This paper explores an alternative method of plotting these parameters that may offer some advantages. The method is inspired by the method developed by Schmitt, and the relationship between this method and conventional statistical parameters is examined.
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