TY  - CONF
AU  - Wang, Haoran
AU  - Huisman, Johan Alexander
AU  - Zimmermann, Egon
TI  - Capacitive coupling in broadband spectral electrical impedance tomography (sEIT) measurements with a centralized multiplexer
M1  - FZJ-2024-03389
PY  - 2024
AB  - We analysed capacitive coupling in sEIT measurements associated with different cable types(shielded and unshielded) and measurement approaches (active and passive electrodes) using circuitmodels and actual sEIT field measurements. The modelling results showed the intricate trade-offsbetween wire-wire, wire-shield, and shield-soil capacitive coupling for shielded and unshieldedcables when using passive electrodes with a centralized multiplexer. The field measurements with acentralized multiplexer and a fan-shaped cable layout with elevated cables showed that unshieldedcables showed lower capacitive coupling than shielded cables because of the dominance of wire-shield capacitive coupling. Analysis using the developed circuit models showed that this result is aconsequence of the site conditions, and cannot be generalized.
T2  - The 7th international induced polarization workshop
CY  - 28 May 2024 - 30 May 2024, Lund (Sweden)
Y2  - 28 May 2024 - 30 May 2024
M2  - Lund, Sweden
LB  - PUB:(DE-HGF)1
DO  - DOI:10.34734/FZJ-2024-03389
UR  - https://juser.fz-juelich.de/record/1026348
ER  -