Signal-to-noise ratio of nerve signals recorded with full and open cylinder cuff electrodes

Author

Sahin, Mesut ; Durand, Dominique M.

Author_Institution

Dept. of Biomed. Eng., Case Western Reserve Univ., Cleveland, OH, USA

Volume

1

fYear

1999

fDate

1999

Abstract

The authors compared the signal-to-noise ratios (SNRs) of nerve recordings obtained with an open cuff (a 270° cylinder) and a full cylindrical electrode (simulated by lifting the open electrode outside the solution) using an in vitro set-up. The thermal noise was considered as the main source of noise. The SNR with the open cuff was only 52±7% (n=3) less than that of a full cylindrical electrode, although the reduction in signal amplitude was 3.5±0.6 times. One may prefer to use the open cuff geometry to reduce the risk of nerve insult in certain nerve recording applications where this loss in SNR is acceptable

Keywords

bioelectric potentials; biomedical electrodes; biomedical measurement; neurophysiology; noise; electroneurogram; full cylinder cuff electrodes; in vitro set-up; nerve insult risk reduction; nerve signals; open cylinder cuff electrodes; signal-to-noise ratio; thermal noise; Analytical models; Biomedical electrodes; Engine cylinders; Geometry; Impedance; In vitro; Noise generators; Noise level; Noise reduction; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802563

Filename

802563