title: Electrical impedance tomography systems based on voltage drive.
abstract: At the ESAT-MICAS research facility in Leuven, several EIT systems have been designed and realised. The latest hardware set-up makes use of a PC to control the data collection and to reconstruct the images. A voltage drive strategy and no common-mode feedback are some of its specific characteristics. The function-generator produces signals with a frequency between 10 and 100 kHz, so multifrequency images can also be produced. Static images have already been obtained and (semi-)real time imaging is possible with our latest mark IV system. This system has 16 bit analogue-to-digital convertors and is capable of taking 50 x 10(3) samples/s.
authors.affiliation: KU Leuven, Elektrotechniek, ESAT-MICAS, Belgium.
authors.forename: W
authors.initials: W
authors.lastname: Sansen
authors.forename: B
authors.initials: B
authors.lastname: Geeraerts
authors.forename: W
authors.initials: W
authors.lastname: Van Petegem
authors.forename: M
authors.initials: M
authors.lastname: Steyaert
mesh_terms: D004553:Electric Conductivity; D006801:Humans; D014054:Tomography / Q000379:methods*