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Journal Articles Israel Journal of Chemistry Year : 2008

On Selection of the Perturbation Amplitude Required to Avoid Nonlinear Effects in Impedance Measurements

Abstract

Numerical simulations of electrochemical systems were used to explore the influence of large-amplitude potential perturbations on the measured impedance response. The amplitude of the input potential perturbation used for impedance measurements, normally fixed at a value of 10 mV for all systems, should instead be adjusted for each experimental system. Guidelines are developed for selection of appropriate perturbation amplitudes. A characteristic transition frequency is defined that can be used to tailor a frequency-dependent input signal to optimize signal-to-noise levels while maintaining a linear response.

Dates and versions

hal-04136462 , version 1 (21-06-2023)

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Bryan Hirschorn, Bernard Tribollet, Mark E Orazem. On Selection of the Perturbation Amplitude Required to Avoid Nonlinear Effects in Impedance Measurements. Israel Journal of Chemistry, 2008, 48 (3-4), pp.133-142. ⟨10.1560/IJC.48.3-4.133⟩. ⟨hal-04136462⟩
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