Use of multiple reference electrodes in electrochemical noise measurements

U. Bertocci, F. Huet, R. P. Nogueira

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


To simplify the measurement of electrochemical noise in field applications, three identical electrodes, one acting as a reference electrode (RE), are often used. However, the intrinsic noise of the RE introduces errors in the noise resistance values computed in this way. In this work, a measurement scheme is proposed, which can reduce the error caused by the REs noise. The scheme uses two REs and is based on the properties of the cross-power spectrum. Two examples of its use, representing typical cases in electrochemical noise measurements with uniform and localized corrosion, are also presented.

Original languageBritish English
Pages (from-to)629-634
Number of pages6
Issue number7
StatePublished - Jul 2003


  • Cross-power spectrum
  • Electrochemical noise
  • Multiphase reference electrodes
  • Noise impedance
  • Noise resistance
  • Power spectral density


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