时域法测量电极阻抗——Ⅱ.硬件、软件及实验结果

中国腐蚀与防护学报

1992, Vol. 12

Issue (4): 335-341

研究报告

本期目录 | 过刊浏览

时域法测量电极阻抗——Ⅱ.硬件、软件及实验结果

王会祥;舒余德

中南工业大学;中南工业大学

ELECTRODE IMPEDANCE MEASUREMENTS BY TIME DOMAIN METHOD Ⅱ. HARDWARE, SOFTWARE AND EXPERIMENTAL RESULTS

Wang Huixiang and Shu Yude(Central South University of Technology)

全文: PDF(538 KB)

摘要: 用Z80A型单板机、12位A/D、D/A转换板及自制的测量放大控制板、恒电位仪等组成采样系统。最小采样间隔32μs。用汇编语言和编译BASIC语言编写各类程序。以电位阶跃为激励信号,对模拟电路及Pt,Fe(CN)_6~(3-)/Fe(CN)_6~(4-)体系的响应电流采样。又应用第1部份的数学方法,求出阻抗值作出Nyguist图和Randle图,其结果与理论值或文献值一致。还初步探讨了不同[Cu~(2+)]及添加不同浓度明胶时Cu~(2+)/Cu体系的交流阻抗特征。

Abstract：A sampling system was assembled with microcomputer, A/D & D/A converter and self-made amplifier & potentiostat. Software consisted of assembly and quick BASIC languages. The maximum sampling rate is 32μs/point. The response current to the step voltage perturbation was sampled, then the algorithm in part Ⅰ of this title was employed and interracial impedance in electrochemical systems was determined. Results of impedance measurements of some equivalent circuits and the Pt, Fe (CN)_6~(3-)/Fe(CN)_6~(4-) system agreed well with closed-form solutions or literature data, thus demonstrating the ability of the computerized measurement system. Measurements with CuSO_4+gelatin systems yielded the expected impedance. Nyquist plot exhibited sufficiently the effect of the dope concentration.

收稿日期: 1992-08-25

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引用本文:

王会祥;舒余德. 时域法测量电极阻抗——Ⅱ.硬件、软件及实验结果[J]. 中国腐蚀与防护学报, 1992, 12(4): 335-341.
. ELECTRODE IMPEDANCE MEASUREMENTS BY TIME DOMAIN METHOD Ⅱ. HARDWARE, SOFTWARE AND EXPERIMENTAL RESULTS. J Chin Soc Corr Pro, 1992, 12(4): 335-341.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1992/V12/I4/335

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