title: A quasi-static analysis for a class of induced-current EIT systems using discrete coils.
abstract: A discrete coil EIT system is investigated for the general case of an eccentric circular inhomogeneity. The solution methodology of the forward problem of this system is explained. An optimization procedure using this forward problem solution is developed to find optimum currents that maximize the distinguishability. For an eccentric inhomogeneity problem, it is shown that the coil currents can be optimized to focus the current density in a region of interest. Optimum coil currents under limited peak coil currents constraint and limited total power constraint are obtained. Representative examples that demonstrate the performance of the system are presented.
authors.affiliation: Hacettepe University, Electrical and Electronics Engineering Department, Ankara, Turkey. koksal@hacettepe.edu.tr
authors.forename: Adnan
authors.initials: A
authors.lastname: Köksal
authors.forename: B Murat
authors.initials: BM
authors.lastname: Eyüboğlu
authors.forename: Mehmet
authors.initials: M
authors.lastname: Demirbilek
mesh_terms: D003198:Computer Simulation; D017097:Electric Impedance; D004867:Equipment Design / Q000379:methods; D008962:Models, Theoretical; D011786:Quality Control; D012680:Sensitivity and Specificity; D014054:Tomography / Q000295:instrumentation*