A simple active electrode for power line interference reduction in high resolution biopotential measurements

Author

Fernández, Mireya ; Pallás-Areny, Ramón

Author_Institution

Dept. d´´Enginyeria Electron., Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

1

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

97

Abstract

Power-line interference is a major problem in High Resolution Biopotential Measurements, mostly because of capacitive coupling. This paper describes the different coupling paths and the parameters involved in interference reduction. One of the parameters that determine the amplitude of low frequency interference in biopotential recordings is skin-electrode impedance but reducing it, particularly in multichannel measurements is not easy. The authors propose an active electrode (based on commercial electrodes) able to reduce power-line interference by about 20 dB

Keywords

bioelectric potentials; biomedical equipment; biomedical measurement; electrodes; interference (signal); interference suppression; 20 dB; capacitive coupling; commercial electrodes; coupling paths; high resolution biopotential measurements; low frequency interference; medical instrumentation; multichannel measurements; power line interference reduction; simple active electrode; skin-electrode impedance; Biomedical electrodes; Capacitance; Electrocardiography; Impedance; Interference; Joining processes; Operational amplifiers; Power system modeling; Voltage; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.656864

Filename

656864