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Bioengineering 2016, 3(3), 20; doi:10.3390/bioengineering3030020

Evaluating Major Electrode Types for Idle Biological Signal Measurements for Modern Medical Technology

Department of Research and Development, Global Innovative Medical Technologies (GIMT), Ottawa, ON K1G 5L1, Canada
Academic Editor: Gou-Jen Wang
Received: 10 June 2016 / Revised: 12 August 2016 / Accepted: 21 August 2016 / Published: 24 August 2016
View Full-Text   |   Download PDF [1828 KB, uploaded 24 August 2016]   |  

Abstract

Biological signals such as electrocardiogram (ECG) and electromyography (EMG) that can be measured at home can reveal vital information about the patient’s health. In today modern technology, the measured ECG or EMG signals at home can be monitored by medical staff from long distance through the use of internet. Biopotential electrodes are crucial in monitoring ECG, EMG, etc., signals. Applying the right type of electrode that lasts for a long time and assists in recording high signal quality is desirable in medical devices industry. Three types of electrodes (Silver/Silver Chloride (Ag/AgCl) electrodes, Orbital electrodes and Stainless steel electrodes) were tested to identify the most appropriate one for recording biological signals. The evaluation was based on determining the electrode circuit model components and having high capacitance value or high capacitor value of electrode circuit model (Cd) and low electrode-skin impedance value or low resistor value of electrode circuit model (Rd). The results revealed that Ag/AgCl is the best type of electrodes, followed by Orbital electrodes. Stainless steel electrodes had performed poorly. However, Orbital electrodes material can last longer than Ag/AgCl and hence perform similar to Ag/AgCl electrodes, which can be idle for monitoring biological signals at home without the need for medical staff to replace the electrodes in a short period of time. View Full-Text
Keywords: biological signals; electrodes; electrode-skin impedance; noise biological signals; electrodes; electrode-skin impedance; noise
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Albulbul, A. Evaluating Major Electrode Types for Idle Biological Signal Measurements for Modern Medical Technology. Bioengineering 2016, 3, 20.

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