On the error structure of impedance measurements -: Series expansions

被引:7
作者
Carson, SL [1 ]
Orazem, ME
Crisalle, OD
García-Rubio, L
机构
[1] Univ Florida, Dept Chem Engn, Gainesville, FL 32611 USA
[2] Univ S Florida, Dept Chem Engn, Tampa, FL 33620 USA
关键词
D O I
10.1149/1.1605421
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A framework is presented for characterizing the statistical properties of frequency-domain measurements. The correlation between the variance in the complex impedance and the variances in the complex current and voltage are examined by means of a Taylor series expansion for the impedance. Both sufficient-only and necessary and sufficient conditions for equality of the variances of real and imaginary impedance are identified and verified using stochastic simulations of techniques commonly employed in frequency-domain measurements. (C) 2003 The Electrochemical Society.
引用
收藏
页码:E501 / E511
页数:11
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