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Effects of Electrode Relocation on Bioelectrical Impedance Measurements on Potato Tissue

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  • Albert Lozano-Nieto

    (Pennsylvania State University, USA)

Abstract

The measurement of bioelectrical impedance is a non-destructive technique that is being used to assess the quality of fruits and plants. Applications of this technique assume that changes in the values of bioelectrical impedance are only due to changes in the tissues under study. This paper evaluates the bioelectrical impedance changes associated to changing the location of the measurement electrodes using an electrode fixture that keeps their distance constant. Due to the short period of time in which these measurements take place, the tissue should have not changed and therefore the measured impedance values should remain constant. This research reports changes in the values of low-frequency resistance as high as 15 %, changes in the values of high-frequency resistance as high as 39 % and changes in the Cole-Cole frequency as high as 16 %. Being these changes in the same order of magnitude, or even larger than changes in bioelectrical impedance reported in the literature for practical applications of the technique, one needs to exercise extreme caution at the time of interpreting similar results in the practical applications of this technique and extracting conclusions.

Suggested Citation

  • Albert Lozano-Nieto, 2022. "Effects of Electrode Relocation on Bioelectrical Impedance Measurements on Potato Tissue," European Journal of Engineering and Technology Research, European Open Science, vol. 7(1), pages 1-5, January.
    • Handle: RePEc:epw:ejeng0:v:7:y:2022:i:1:id:62697
    DOI: 10.24018/ejeng.2022.7.1.2697
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