A practical approach to electrode-skin impedance unbalance measurement
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hdl:2117/1260
Document typeArticle
Defense date2006-07
PublisherInstitute of Electrical and Electronics Engineers
Rights accessOpen Access
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Abstract
Unbalance between electrode-skin impedances is a major problem in biopotential recordings, leading to increased power-line interference. This paper proposes a simple, direct method to measure that unbalance at power-line frequency (50-60 Hz), thus allowing the determination of actual recording conditions for biopotential amplifiers. The method is useful in research, amplifier testing, electrode design and teaching purposes. It has been experimentally validated by using both phantom impedances and real electrode-skin impedances.
CitationSpinelli, Enrique M.; Mayosky, Miguel A.; Pallàs-Areny, R. A practical approach to electrode-skin impedance unbalance measurement . IEEE Transactions on biomedical engineering, 2006, vol. 53, No. 7, 1451-1453
ISSN0018-9294
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