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ayesai

新虫 (初入文坛)

[求助] 想请教一下做电化学测试时OCP和EIS能同时进行吗 已有1人参与

就是说在外接了万用表测OCP的时候,还能再外接电化学工作站测阻抗吗?或者说电化学工作站可以直接同时记录OCP和EIS的数据呢?(ps:其实我比较担心测试阻抗时会影响测试开路点位的准确性)

@langzhizhou @Gamry-电化学 发自小木虫IOS客户端
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Gamry-电化学

金虫 (职业作家)


【答案】应助回帖

感谢参与,应助指数 +1
可以测的
但是你会发现那个时候的开路,是开路加一个正弦信号
信号的周期就是你设置EIS的频率,幅值就是你设置的扰动信号乘以根号2

举例,如果开路是0V,那么测试EIS时候的开路就是-14.4mV到+14.4mV
频率太高,万用表测不出来,因为万用表变得没那么快,假如频率低,你才能测出区别
2楼2017-05-15 10:04:10
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