The influence of error structure on interpretation of impedance spectra

被引：20

作者：

Agarwal, P

Orazem, ME

GarciaRubio, LH

机构：

[1] UNIV FLORIDA,DEPT CHEM ENGN,GAINESVILLE,FL 32611

[2] UNIV S FLORIDA,DEPT CHEM ENGN,TAMPA,FL 33620

来源：

ELECTROCHIMICA ACTA | 1996年 / 41卷 / 7-8期

基金：

美国国家科学基金会;

关键词：

electro-hydrodynamic impedance; impedance spectroscopy; modeling; mass transfer; statistics;

D O I：

10.1016/0013-4686(95)00433-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The influence of error structure on interpretation of impedance measurements is demonstrated for electro-hydrodynamic impedance spectra. The stochastic component of the error structure was determined through use of measurement models, and a three-parameter model for the error structure was identified. The measurement model was also used to identify portions of the impedance spectra that were not corrupted by bias errors. Regression employing weighting by the stochastic component of the error structure yielded unambiguous values for physical properties such as the Schmidt number, whereas significant ambiguity was observed using modulus or proportional weighting.

引用

页码：1017 / 1022

页数：6

共 40 条

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