Experiences of an On-Line Fourier Transform Faradaic Admittance Measurement (FT-FAM) System Based on Digital Signal Processors

  • Sten O. Engblom
  • Mikael Wasberg
  • Johan Bobacka
  • Ari Ivaska

Abstract

The theory and practical implementation of the Fourier Transform Faradaic Admittance Measurement technique was introduced and developed by Smith and coworkers.1,2 This electroanalytical technique now rests on a sound theoretical basis and has been proven in many experimental situations. In this method a multiple-frequency perturbation waveform is used and the cell admittance is calculated at each of these frequencies using the measured current and potential. Measurements over a substantial range of frequencies, at least over two orders of magnitude, are required before any conclusive interpretations can be made concerning the mechanism and kinetics of an electrochemical system. The main advantage of this Fourier transform approach is that the cell admittance can simultaneously by measured at a large number of frequencies.

Keywords

Europe Cage Propylene Sine Sten 

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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Sten O. Engblom
    • 1
  • Mikael Wasberg
    • 1
  • Johan Bobacka
    • 1
  • Ari Ivaska
    • 1
  1. 1.Laboratory of Analytical ChemistryÅbo Akademi UniversityTurku-ÅboFinland

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