TY  - JOUR
AU  - Sarreshtedari, F.
AU  - Pourhashemi, A.
AU  - Asad, N.
AU  - Schubert, J.
AU  - Banzet, M.
AU  - Fardmanesh, M.
TI  - An Efficient Finite-Element Approach for the Modeling of Planar Double-D Excitation Coils and Flaws in SQUID NDE Systems
JO  - IEEE transactions on applied superconductivity
VL  - 20
SN  - 1051-8223
CY  - New York, NY
PB  - IEEE
M1  - PreJuSER-10416
SP  - 76 - 81
PY  - 2010
N1  - Record converted from VDB: 12.11.2012
AB  - Incorporating an efficient approach for the finite-element simulation of eddy current superconductive quantum interface device (SQUID) nondestructive evaluation (NDE) systems, an appropriate finite-element method (FEM) has been presented for simulating and analyzing such systems. We have introduced a new model for the planar double-D coils, which are used as the excitation source in eddy current SQUID NDE systems, and also another model for the description of the flaw effect on the induced current. We have also examined our simulation results with their associated measurements. Our system is based on a high-T-C YBCO gradiometer RF-SQUID sensor with a flux noise level below 100 mu Phi(0)/root Hz at 100 Hz in an unshielded environment while being shielded against external RF electromagnetic interference. The very good agreement between experimental and numerical approaches confirmed our model for the 3-D FEM simulation of the system, which is being done in reasonable time and using reasonable computer resources.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000276098400005
DO  - DOI:10.1109/TASC.2009.2039399
UR  - https://juser.fz-juelich.de/record/10416
ER  -