Document Detail


Noise of surface bio-potential electrodes based on NASICON ceramic and Ag-AgCl.
MedLine Citation:
PMID:  9039749     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The electrochemical noise from dry NASICON-based surface electrodes and pregelled Ag-AgCl electrodes is evaluated in saline solutions and on the skin. The electrochemical noise from the electrode/electrolyte interface is found to be negligible (less than 1 microV peak to peak). On the skin, the noise level is highly dependent on the patient. At high frequencies, the skin/electrode interface noise is equal to 'thermal noise' and can be related to the real part of the skin/electrode impedance. At low frequencies (F < 100 Hz), excess noise is observed that varies as f-2. It is tentatively ascribed to a non-stationary process or noise of electrochemical origin due to the ionic nature of the skin. The contribution of residual EMG signal of low amplitude (5 microV peak to peak) is suggested for electrodes with large surface area.
Authors:
C Gondran; E Siebert; S Yacoub; E Novakov
Related Documents :
11475819 - Intraoperative study of polarization and evoked response signals in different endocardi...
16338109 - Effects of electrode design and configuration on channel interactions.
15811699 - Loudness growth in cochlear implants: effect of stimulation rate and electrode configur...
16583899 - Electrophysiologic channel interaction, electrode pitch ranking, and behavioral thresho...
18310809 - Frequency detection with stability coefficient for steady-state visual evoked potential...
1375879 - A short latency cortical component of the foveal vep is revealed by hemifield stimulation.
19049919 - Improving ivus palpography by incorporation of motion compensation based on block match...
17509969 - New method of visual disturbances assessment in pilots during tests in the polish human...
21817669 - Detection of neurotransmitters by a light scattering technique based on seed-mediated g...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medical & biological engineering & computing     Volume:  34     ISSN:  0140-0118     ISO Abbreviation:  Med Biol Eng Comput     Publication Date:  1996 Nov 
Date Detail:
Created Date:  1997-03-20     Completed Date:  1997-03-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7704869     Medline TA:  Med Biol Eng Comput     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  460-6     Citation Subset:  IM    
Affiliation:
Laboratoire d'lonique et d'Electrochimie du Solide de Grenoble, ENSEEG, BP 75, Saint Martin d'Hères, France.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Ceramics
Electricity
Electrodes*
Humans
Models, Theoretical
Silver
Silver Compounds
Skin Physiological Phenomena*
Chemical
Reg. No./Substance:
0/Ceramics; 0/Silver Compounds; 7440-22-4/Silver; 7783-90-6/silver chloride

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Comparison of shoe insole materials by neural network analysis.
Next Document:  Internal work estimation in three-dimensional gait analysis.