ANALYSIS OF THE USE OF DRY ELECTRODES IN ELECTROPHYSIOLOGICAL MEASUREMENTS
DOI:
https://doi.org/10.24867/08RB01KokotovicKeywords:
Electrophysiological signals, biopotentials, ECG, EMG, Ag/AgCl electrodes, dry electrodesAbstract
The electrical signals in an organism reflect the properties of its biological systems, their processing is done in order to study the behavior of those systems or organs. Recording of electrophysiological signals is done using electrodes, which register the difference of biopotentials. After that the received signal is sent to the amplifier and the A/D converter. Commercially available electrodes for recording of electrophysiological signals are electrodes that include skin preparation before use. Skin should be cleaned and applied with a layer of electrophysiological dilution, conductive paste or gel. In this paper, electrodes that are used without prior skin preparation - dry electrodes, were studied. Recording of ECG and EMG signals with standard Ag/AgCl and dry electrodes was performed and the obtained signals were compared.
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