Renato Lourenço, Paulo Leite, André Lourenço, Hugo Silva, Ana Fred, David Coutinho


Current Electrocardiographic (ECG) signal acquisition methods are generally highly intrusive, as they involve the use of pre-gelled electrodes and cabled sensors placed directly on the person, at the chest or limbs level. Moreover, systems that make use of alternative conductive materials to overcome this issue, only provide heart rate information and not the detailed signal itself. We present a comparison and evaluation of two types of dry electrodes as interface with the skin, targeting wearable and low intrusiveness applications, which enable ECG measurement without the need for any apparatus permanently fitted to the individual. In particular, our approach is targeted at ECG biometrics using signals collected at the hand or finger level. A custom differential circuit with virtual ground was also developed for enhanced usability. Our work builds upon the current stateof-the-art in sensoring devices and processing tools, and enables novel data acquisition settings through the use of dry electrodes. Experimental evaluation was performed for Ag/AgCl and Electrolycra materials, and results show that both materials exhibit adequate performance for the intended application.


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Paper Citation

in Harvard Style

Lourenço R., Leite P., Lourenço A., Silva H., Fred A. and Coutinho D. (2012). EXPERIMENTAL APPARATUS FOR FINGER ECG BIOMETRICS . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012) ISBN 978-989-8425-91-1, pages 196-200. DOI: 10.5220/0003777701960200

in Bibtex Style

author={Renato Lourenço and Paulo Leite and André Lourenço and Hugo Silva and Ana Fred and David Coutinho},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012)},

in EndNote Style

JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012)
SN - 978-989-8425-91-1
AU - Lourenço R.
AU - Leite P.
AU - Lourenço A.
AU - Silva H.
AU - Fred A.
AU - Coutinho D.
PY - 2012
SP - 196
EP - 200
DO - 10.5220/0003777701960200