How to read EIS accuracy contour plots Electrochemistry & Battery – Application Note 54

Abstract

The impedance measurement accuracy of an impedance analyzer depends on both the impedance magnitude and the measurement frequency. The EIS specifications for potentiostats/galvanostats are given in a graph called a contour plot. The aim of this note is to help users understand and use the EIS accuracy contour plots so as to recognize and interpret possible errors in their EIS measurements.

Introduction

The impedance measurement accuracy of an impedance analyzer depends on the impedance magnitude and on the measurement
frequency. Potentiostats/galvanostats/ EIS (Electrochemical Impedance Spectroscopy) specifications are given in graphs called accuracy contour plots. The aim of this note is to help the user understand and use the EIS accuracy contour plots.

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