| 具有双时间常数电化学阻抗谱的参数解析 |
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| 引用本文： | 战广深,范海涛.具有双时间常数电化学阻抗谱的参数解析[J].大连理工大学学报,1998,38(5):607-612. |
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| 作者姓名： | 战广深 范海涛 |
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| 作者单位： | 大连理工大学化工学院 |
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| 摘 要： | 提出了一种适用于具有弥散效应，双时间常数的电化学阻抗谱参数解析的方法，在确立用马特法进行曲线拟合的具体算法中，用最小二乘法求解初值，使迭代迅速收敛；用非线性插值法来弥补某些条件下实验数据点不足的缺陷。该方法可一次同时求解多个电化学电参数，计算实例表明了方法的有效性和可靠性。
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| 关 键 词： | 时间常数 解析 电化学阻抗谱 腐蚀电化学体系 |
Parameter analysis of electrochemical impedance spectrum with two time constant |
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| Zhan Guangshen,Fan Haitao,Zhang Liqun,Li Xueting.Parameter analysis of electrochemical impedance spectrum with two time constant[J].Journal of Dalian University of Technology,1998,38(5):607-612. |
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| Authors: | Zhan Guangshen Fan Haitao Zhang Liqun Li Xueting |
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| Abstract: | An approach for the parameter analysis of electrochemical impedance spectrum with two time constant and dispersion effect has been proposed. To fit the spectrum by Marquardt method, least square method is used to get the initial value, then interation can coverge quickly, nonlinear interpolation method is used to make up shortcomings caused by insufficient experiment data which happen under some situations. This method can obtain several electrochemical parameters simultaneously, its effectiveness and reliability are proved by practical applications |
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| Keywords: | time constant analysis/electrochemical impedance spectrum |
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