Optimization of multi-ring sensing electrode set

Monica Kaufer, Leonard Rasquinha, Peter Tarjan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

The potential generated in a set of concentric ring electrodes by a moving dipole layer was simulated by a linear finite element model. The wavefront was represented by rectangular charged elements with the charge concentrated at the center of each element. The model was refined to reflect the solid angle described by the corners of the finite element and the center of the element on the ring of interest. This corrects the potential while the dipole layer is near the center of the sensing electrodes. The model confirms that the far-field dependence of both bipolar and tripolar rings is a function of r-4, where r is the radius of the ring. As expected, the tripolar configuration is more spatially sensitive with a smaller amplitude. When signal amplitude is more important than spatial specificity then the bipolar configuration appears superior.

Original languageEnglish
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
Place of PublicationPiscataway, NJ, United States
PublisherPubl by IEEE
Pages612-613
Number of pages2
Editionpt 2
ISBN (Print)0879425598
StatePublished - Dec 1 1990
EventProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Philadelphia, PA, USA
Duration: Nov 1 1990Nov 4 1990

Other

OtherProceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityPhiladelphia, PA, USA
Period11/1/9011/4/90

    Fingerprint

ASJC Scopus subject areas

  • Bioengineering

Cite this

Kaufer, M., Rasquinha, L., & Tarjan, P. (1990). Optimization of multi-ring sensing electrode set. In Proceedings of the Annual Conference on Engineering in Medicine and Biology (pt 2 ed., pp. 612-613). Publ by IEEE.