电化学噪声分析中电极不对称的检测

Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology. TENCON 2001 (Cat. No.01CH37239) Pub Date : 2001-08-19 DOI:10.1109/TENCON.2001.949603

A. Lowe, H. Eren, C. Fung

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引用次数: 0

摘要

耐电化学噪声是一种计算方法，可以用来估计一对金属样品的腐蚀速率，仅从它们产生的电化学噪声。理想情况下，这些金属样品(电极)应该是相同的，但由于各种原因，电极明显不同的情况并不罕见。在这种情况下，将噪声阻力与更传统的电化学参数(极化阻力)联系起来的理论就失效了。这个环节很重要，因为只有通过极化电阻，噪声电阻才能用于腐蚀速率估计。因此，能够检测不对称电极对是很重要的。本文描述了如何利用电压和电流噪声之间的相互关系来检测不对称。

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Detection of electrode asymmetry in electrochemical noise analysis

The electrochemical noise resistance is a calculation that can be used for estimating the rate of corrosion of a pair of metal samples purely from the electrochemical noise that they generate. Ideally these metal samples (electrodes) would be identical, but it is not uncommon, for various reasons, for the electrodes to be significantly different. In that case, the theory linking the noise resistance to the more conventional electrochemical parameter, the polarisation resistance, breaks down. This link is important because it is only via the polarisation resistance that noise resistance can be used for corrosion rate estimation. It is therefore important to be able to detect an asymmetric electrode pair. This paper describes how the cross correlation between voltage and current noise can be used to detect an asymmetry.

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Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology. TENCON 2001 (Cat. No.01CH37239)

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