Design of multichannel fringing electric field sensors for imaging. Part I. General design principles

Author

Li, X.B. ; Larson, S.D. ; Zyuzin, A.S. ; Mamishev, A.V.

Author_Institution

Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA

fYear

2004

fDate

19-22 Sept. 2004

Firstpage

406

Lastpage

409

Abstract

Multichannel electric field sensors are used for electrical impedance and capacitance tomography applications. In cases where only one-sided access can be accommodated, fringing electric field sensors (FEF) sensors are used. The genera! design principles of multichannel fringing electric field sensors are discussed in This work. Analysis of the figures of merit of FEF sensors, such as penetration depth, signal strength, measurement sensitivity, and imaging resolution, are presented. The effects of design parameters on sensor performance are also evaluated. The qualitative design principles described in this part of the paper provide intuitive guidelines for the simulation-based design optimization procedure to be presented in the second part of the paper.

Keywords

capacitive sensors; image resolution; image sensors; optimisation; sensitivity analysis; capacitance tomography; capacitive sensors; design optimization; electrical impedance; imaging resolution; measurement sensitivity; multichannel fringing electric field sensors; penetration depth; signal strength; Capacitive sensors; Design optimization; Electrical capacitance tomography; Guidelines; Image analysis; Image resolution; Image sensors; Impedance; Signal analysis; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2004. Conference Record of the 2004 IEEE International Symposium on

ISSN

1089-084X

Print_ISBN

0-7803-8447-4

Type

conf

DOI

10.1109/ELINSL.2004.1380616

Filename

1380616