测量不锈钢电化学噪声的非对称表面方法

刘微

Asymmetric Surface Configuration for Electrochemical Noise Measurement on Stainless Steel

LIU Wei

图7 304不锈钢抛光-钝化电极采集的ECN-EPN信号及估计阳极电流ia-EPN的交互递归定量参数随时间的演变

Fig.7 Evolution of the recurrence quantitative parameters (a) RR, (b) DET, (c) Lmax, (d) ENT calculated with the ECN-EPN signal, or the ia-EPN signal, collected by the 304 stainless steel polishing-passivation electrode, the parameters are set as time delay τ=1, embedding dimension m=4, phasor distance as Euclidean distance, time window w=500 s, moving step Δt=100 s, threshold ε=0.02