| 在常用波形扰动下利用FFT测量电极阻抗 |
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| 引用本文： | 丁明照. 在常用波形扰动下利用FFT测量电极阻抗[J]. 厦门大学学报(自然科学版), 1988, 0(4) |
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| 作者姓名： | 丁明照 |
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| 作者单位： | 厦门大学化学系 |
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| 摘 要： | 建立一个用快速富里叶变换(FFT)测量电极阻抗的测试系统,并分别加以阶?电位、方波电位、三角波电位等扰动信号,对模拟电化学系统进行实际测量和讨论,当测量频率在0.1～0.001Hz范围,使用阶跃电位作为扰动信号,可以得到较大扰动信号幅值,从而提高信噪比及测量精确度。
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| 关 键 词： | FFT方■ 电极阻抗 |
Electrode Impedance Measurement Perturbed by Usual Waveform Using FFT Method |
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| Ding Mingzhao. Electrode Impedance Measurement Perturbed by Usual Waveform Using FFT Method[J]. Journal of Xiamen University(Natural Science), 1988, 0(4) |
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| Authors: | Ding Mingzhao |
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| Affiliation: | Dcpt. of Chem. |
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| Abstract: | A test system tot electrode impedance measurement by FFT technique was established. Impedance measurement of dummy cells that were perturbed by potential of step, square-wave and triangular-wave separately were made. Results of measurement were analyzed and discussed. When potential step was used as perturbation signal with measurement frequence ranged from 0.1 Hz to 0,001 Hz, a larger perturbation amplitude was obtained and the signal-to-noise ratio and the measurement accurary were improved. |
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| Keywords: | FFT method Electrode impedance Measurement |
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