E Andrade Lima et al 2002 Supercond. Sci. Technol. 15 1259 doi:10.1088/0953-2048/15/8/316
E Andrade Lima1,2,3, A C Bruno1 and J Szczupak2
Show affiliationsWe present a two-dimensional deconvolution technique to estimate the original magnetic field from the flux measured by SQUID planar gradiometers. While modelling the gradiometer as a spatial filter, we use a pseudo-inverse filtering to perform the deconvolution in the spatial frequency domain. We successfully tested the technique with simulated measurements for concentric and non-concentric gradiometer designs, and for two different field sources. Planar concentric devices proved to be more suitable for the deconvolution procedure, due to attributes of their spatial frequency response.
85.25.Dq Superconducting quantum interference devices (SQUIDs)
85.25.Am Superconducting device characterization, design, and modeling
Issue 8 (August 2002)
Received 3 May 2002, in final form 11 June 2002
Published 16 July 2002
E Andrade Lima et al 2002 Supercond. Sci. Technol. 15 1259
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