Journal
MEASUREMENT SCIENCE AND TECHNOLOGY
Volume 23, Issue 12, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/23/12/125703
Keywords
flexible electrodes; concentric ring electrodes; Laplacian techniques; bioelectrical surface recording
Funding
- Ministerio de Ciencia y Tecnologia de Espana [TEC2010-16945]
- Universitat Politecnica de Valencia [PAID 2009/10-2298]
- Universitat Politecnica de Valencia, Spain
Ask authors/readers for more resources
Bioelectrical surface recordings are usually performed by unipolar or bipolar disc electrodes even though they entail the serious disadvantage of having poor spatial resolution. Concentric ring electrodes give improved spatial resolution, although this type of electrode has so far only been implemented in rigid substrates and as they are not adapted to the curvature of the recording surface may provide discomfort to the patient. Moreover, the signals recorded by these electrodes are usually lower in amplitude than conventional disc electrodes. The aim of this work was thus to develop and test a new modular active sensor made up of concentric ring electrodes printed on a flexible substrate by thick-film technology together with a reusable battery-powered signal-conditioning circuit. Simultaneous ECG recording with both flexible and rigid concentric ring electrodes was carried out on ten healthy volunteers at rest and in motion. The results show that flexible concentric ring electrodes not only present lower skin-electrode contact impedance and lower baseline wander than rigid electrodes but are also less sensitive to interference and motion artefacts. We believe these electrodes, which allow bioelectric signals to be acquired non-invasively with better spatial resolution than conventional disc electrodes, to be a step forward in the development of new monitoring systems based on Laplacian potential recordings.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available