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@ARTICLE{Lustfeld:60616,
author = {Lustfeld, H. and Reißel, M. and Schmidt, U. and Steffen,
B.},
title = {{R}econstruction of {E}lectric {C}urrents in a {F}uel
{C}ell by {M}agnetic {F}ield {M}easurements},
journal = {Journal of fuel cell science and technology},
volume = {6},
issn = {1550-624X},
address = {New York, NY},
publisher = {ASME},
reportid = {PreJuSER-60616},
pages = {021012 - 021020},
year = {2009},
note = {Record converted from VDB: 12.11.2012},
abstract = {In this paper the tomographic problem arising in the
diagnostics of a fuel cell is discussed. This is concerned
with how well the electric current density j(r) be
reconstructed by measuring its external magnetic field. We
show that (i) exploiting the fact that the current density
has to comply with Maxwell's equations it can, in fact, be
reconstructed at least up to a certain resolution, (ii) the
functional connection between the resolution of the current
density and the relative precision of the measurement
devices can be obtained, and (iii) a procedure can be
applied to determine the optimum measuring positions,
essentially decreasing the number of measuring points and
thus the time scale of measurable dynamical
perturbations-without a loss of fine resolution. We present
explicit results for (i)-(iii) by applying our formulas to a
realistic case of an experimental direct methanol fuel
cell.},
keywords = {J (WoSType)},
cin = {IFF-1 / JSC},
ddc = {620},
cid = {I:(DE-Juel1)VDB781 / I:(DE-Juel1)JSC-20090406},
pnm = {Scientific Computing / Kondensierte Materie},
pid = {G:(DE-Juel1)FUEK411 / G:(DE-Juel1)FUEK414},
shelfmark = {Electrochemistry / Energy $\&$ Fuels},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000264024900013},
doi = {10.1115/1.2972171},
url = {https://juser.fz-juelich.de/record/60616},
}