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电化学动力系统演化过程中 ,其状态参量 (如电极电位、电解池电流等 )的随机波动现象被称为“电化学噪音”(ECN) .小波变换是近年来数学与信号处理领域获得突破性进展的一种数据处理方法 .本文首次用连续小波变换的方法对混凝土中钢筋腐蚀产生的“电化学噪音”信号进行初步研究 ,通过将原始的时域信号变换至时_频相平面来观察其结构特征 ,并揭示出电化学腐蚀过程的混沌动力学行为 .
Electrokinetic system evolution, the state parameters (such as electrode potential, cell current, etc.) of the random fluctuations phenomenon known as “electrochemical noise” (ECN) .Wavelet transform in mathematics and signal processing in recent years to obtain a breakthrough in the field Progress of a data processing method.In this paper, for the first time by continuous wavelet transform method of concrete corrosion caused by corrosion of the “electrochemical noise” signal for a preliminary study by transforming the original time-domain signal to the time-frequency phase plane to observe its Structural characteristics and reveal the chaotic dynamic behavior of electrochemical corrosion process.