Mechanism of pressure induced baseline shift in bioelectric signals measurement using wearable electrodes

Pengjun Xu; Xiaoming Tao; Hao Liu; Shanyuan Wang

doi:10.1109/BHI.2012.6211726

Mechanism of pressure induced baseline shift in bioelectric signals measurement using wearable electrodes

Pengjun Xu, Xiaoming Tao, Hao Liu, Shanyuan Wang

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

In this paper, we present an objective evaluation method to study the pressure induced abrupt baseline shift in bioelectric signals measurement using textile electrodes. The evaluation was carried out on a hollow simulator, made from a Teflon tube with two pieces of filtration membranes at each end to mimic human skin, which filled with saline solution. An electrode pair was set to contact with the membranes under controllable pressure. The baseline of bioelectric signals, indicated by open circuit potential (OCP) of the electrode pair, was continuously recorded when increasing the electrode-membrane contact pressure stepwise. Electrochemical impedances of the electrode pair were also measured at each pressure step. The results shown that the OCP and impedance decreased with electrode contact pressure. Mechanism of the abrupt baseline shift was analyzed using a capacitor model which well explained this phenomenon.

Original language	English
Title of host publication	Proceedings - IEEE-EMBS International Conference on Biomedical and Health Informatics
Subtitle of host publication	Global Grand Challenge of Health Informatics, BHI 2012
Pages	871-874
Number of pages	4
DOIs	https://doi.org/10.1109/BHI.2012.6211726
Publication status	Published - 30 Jul 2012
Event	IEEE-EMBS International Conference on Biomedical and Health Informatics, BHI 2012. In Conj. with the 8th Int. Symp.on Medical Devices and Biosensors and the 7th Int. Symp. on Biomedical and Health Engineering - Hong Kong and Shenzhen, Hong Kong Duration: 2 Jan 2012 → 7 Jan 2012

Conference

Conference	IEEE-EMBS International Conference on Biomedical and Health Informatics, BHI 2012. In Conj. with the 8th Int. Symp.on Medical Devices and Biosensors and the 7th Int. Symp. on Biomedical and Health Engineering
Country/Territory	Hong Kong
City	Hong Kong and Shenzhen
Period	2/01/12 → 7/01/12

ASJC Scopus subject areas

Biomedical Engineering
Health Informatics

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10.1109/BHI.2012.6211726

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title = "Mechanism of pressure induced baseline shift in bioelectric signals measurement using wearable electrodes",

abstract = "In this paper, we present an objective evaluation method to study the pressure induced abrupt baseline shift in bioelectric signals measurement using textile electrodes. The evaluation was carried out on a hollow simulator, made from a Teflon tube with two pieces of filtration membranes at each end to mimic human skin, which filled with saline solution. An electrode pair was set to contact with the membranes under controllable pressure. The baseline of bioelectric signals, indicated by open circuit potential (OCP) of the electrode pair, was continuously recorded when increasing the electrode-membrane contact pressure stepwise. Electrochemical impedances of the electrode pair were also measured at each pressure step. The results shown that the OCP and impedance decreased with electrode contact pressure. Mechanism of the abrupt baseline shift was analyzed using a capacitor model which well explained this phenomenon.",

author = "Pengjun Xu and Xiaoming Tao and Hao Liu and Shanyuan Wang",

year = "2012",

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language = "English",

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pages = "871--874",

booktitle = "Proceedings - IEEE-EMBS International Conference on Biomedical and Health Informatics",

note = "IEEE-EMBS International Conference on Biomedical and Health Informatics, BHI 2012. In Conj. with the 8th Int. Symp.on Medical Devices and Biosensors and the 7th Int. Symp. on Biomedical and Health Engineering ; Conference date: 02-01-2012 Through 07-01-2012",

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Xu, P, Tao, X, Liu, H & Wang, S 2012, Mechanism of pressure induced baseline shift in bioelectric signals measurement using wearable electrodes. in Proceedings - IEEE-EMBS International Conference on Biomedical and Health Informatics: Global Grand Challenge of Health Informatics, BHI 2012., 6211726, pp. 871-874, IEEE-EMBS International Conference on Biomedical and Health Informatics, BHI 2012. In Conj. with the 8th Int. Symp.on Medical Devices and Biosensors and the 7th Int. Symp. on Biomedical and Health Engineering, Hong Kong and Shenzhen, Hong Kong, 2/01/12. https://doi.org/10.1109/BHI.2012.6211726

Mechanism of pressure induced baseline shift in bioelectric signals measurement using wearable electrodes. / Xu, Pengjun; Tao, Xiaoming; Liu, Hao et al.
Proceedings - IEEE-EMBS International Conference on Biomedical and Health Informatics: Global Grand Challenge of Health Informatics, BHI 2012. 2012. p. 871-874 6211726.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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Mechanism of pressure induced baseline shift in bioelectric signals measurement using wearable electrodes

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