Characterization of a Surface Ag-AgCl Electrode using the Paxon Test Platform
2015 (English)Manuscript (preprint) (Other academic)
Evaluation of an electrode for intraelectrode differences using both a traditional gain-phase method and the Paxon test platform. The direct gain-phase measurements are useful to extract the transfer function of the electrode, as well as some other base parameters. The Paxon test platform is a complementary method that tests electrodes under conditions that are more realistic than the gel-to-gel connection used in the gain-phase method. Testing stability over time e.g. DC signal drift (worst set 6,31 ± 43,00 nV) over a one hour of measurement duration was carried out. The Paxon also lets tests be performed beyond what the gain-phase methods can measure, for example electrode rotation, which would uncover variations in the symmetry of the electrode. When tested, the symmetry properties of the electrode (test set variations, start to end, over rotations 0,90,180 and 270 degrees) resulted in a peak to peak variation in detected amplitude of 5.3 ±8.9 mV. Intraelectrode variations were detected and quantized with the Paxon test platform.
Place, publisher, year, edition, pages
Electrode testing, Characterization, Coupling Parameters. Stability test, Axon potential
IdentifiersURN: urn:nbn:se:liu:diva-121087OAI: oai:DiVA.org:liu-121087DiVA: diva2:851637