On the correct use of stepped-sine excitations for the measurement of time-varying bioimpedance

G. G. Láng, D. Zalka

Research output: Contribution to journalReview article

1 Citation (Scopus)


Many electrochemical/bioelectrochemical systems are intrinsically nonstationary and are affected by time-dependent phenomena. The requirement of stationarity in the classical version of impedance spectroscopy appears to be in conflict with the essential properties of the object, therefore a post-experimental mathematical/analytical procedure is necessary for the reconstruction of the 'true' impedance spectra. In this communication, a method for the correction of the impedance data is discussed.

Original languageEnglish
Article number028001
JournalPhysiological measurement
Issue number2
Publication statusPublished - Feb 28 2018



  • 4D analysis method
  • impedance spectroscopy
  • instantaneous impedance
  • non-stationary systems

ASJC Scopus subject areas

  • Biophysics
  • Physiology
  • Biomedical Engineering
  • Physiology (medical)

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