LINEAR AND NON-LINEAR PROPERTIES OF PLATINUM-ELECTRODE POLARIZATION .1. FREQUENCY-DEPENDENCE AT VERY LOW-FREQUENCIES

被引：101

作者：

ONARAL, B ^{[1
]}

SCHWAN, HP ^{[1
]}

机构：

[1] UNIV PENN,DEPT BIOENGN,PHILADELPHIA,PA 19104

来源：

MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING | 1982年 / 20卷 / 03期

关键词：

462 Biomedical Equipment - 704 Electric Components and Equipment - 942 Electric and Electronic Measuring Instruments;

D O I：

10.1007/BF02442796

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The polarization impedance of the platinum electrode was measured in physiological saline (0. 9% NaCl) over six decades of frequencies down to 1 MHz. The applicability of H. Fricke's phase angle rule was verified down 10 MHz. The resistive shunt which emerges at lower frequencies as shown to be equivalent to the direct current (dc) impedance of the interface. A K. S. Cole-R. H. Cole (1941) type of relaxation model is proposed to describe the interface behavior over all frequency ranges. Nonlinear polarization measurements have demonstrated the validity of H. P. Schwan's limit law of linearity at very low frequencies.

引用

页码：299 / 306

页数：8

共 37 条

[11] FARADAIC IMPEDANCES AND INTERMEDIATES IN ELECTROCHEMICAL REACTIONS [J].