Annals of Biomedical Engineering

, Volume 20, Issue 3, pp 289–305 | Cite as

Impedance spectroscopy

  • J. Ross Macdonald


Impedance spectroscopy (IS) is a general term that subsumes the small-signal measurement of the linear electrical response of a material of interest (including electrode effects) and the subsequent analysis of the response to yield useful information about the physicochemical properties of the system. Analysis is generally carried out in the frequency domain, although measurements are sometimes made in the time domain and then Fourier transformed to the frequency domain. IS is by no means limited to the measurement and analysis of data at the impedance level (e.g., impedance vs. frequency) but may involve any of the four basic immittance levels: thus, most generally, IS stands for immittance spectroscopy.


Impedance Immittance Complex dielectric constant Complex modulus 


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Copyright information

© Pergamon Press Ltd. 1992

Authors and Affiliations

  • J. Ross Macdonald
    • 1
  1. 1.Department of Physics and AstronomyUniversity of North CarolinaChapel Hill

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