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Title: Measurement of wearable electrode and skin mechanical interaction using displacement and pressure sensors
Authors: Xu, P
Tao, X 
Wang, S
Issue Date: 2011
Source: Proceedings - 2011 4th International Conference on Biomedical Engineering and Informatics, BMEI 2011, 2011, v. 2, 6098433, p. 1131-1134 How to cite?
Abstract: This paper presents the methods of measuring electrode-skin mechanical interaction which is closely related to the motion artifacts of bio-potential body surface electrode. The interaction was defined as inplane electrode-skin relative movement parallel with skin and their contact pressure perpendicular to skin. The wearable electrode was fabricated using sliver coated fabrics. Thin film pressure sensor and optical displacement sensor were integrated into the electrode for electrode-skin relative movement and their contact pressure measurement. The sensor-embedded electrode were placed at specific position: RA, LR and RL for electrocardiogram (ECG) recording with a default pressure of 2KPa. Electrode-skin relative movement and their contact pressure was measured during designate body movement and exercise. The results demonstrated that electrode-skin relative movement speed was in the range of 0-50mm/sec. Spectrum analysis revealed that the movement frequency laid within 0-2.5Hz which overlapped with normal ECG signal but attenuated quickly. Electrode-skin contact pressure was within the range of 0.4-1.7KPa and showed influential effect on ECG signal which can be adopted in adaptive filtering for reducing motion artifacts.
Description: 2011 4th International Conference on Biomedical Engineering and Informatics, BMEI 2011, Shanghai, 15-17 October 2011
ISBN: 9781424493524
DOI: 10.1109/BMEI.2011.6098433
Appears in Collections:Conference Paper

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