Calculation of the field map from the measurement data of the fluxset sensor

Citation
J. Pavo et al., Calculation of the field map from the measurement data of the fluxset sensor, COMPEL, 20(2), 2001, pp. 404-416
Citations number
8
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING
ISSN journal
03321649 → ACNP
Volume
20
Issue
2
Year of publication
2001
Pages
404 - 416
Database
ISI
SICI code
0332-1649(2001)20:2<404:COTFMF>2.0.ZU;2-U
Abstract
The relation between the output of the fluxsel sensor and the magnetic fiel d is established by the numerical and experimental investigation of an ECT set-up. A fast calculation method has been developed for obtaining the magn etic field generated by the interaction of the probe and the crack in a fin ite plate by superimposing the results obtained by the analysis of a finite plate without a crack and an infinite plate with a crack. The calculations are made by FEM and boundary integral methods, respectively. The relations hip between the measured output and the magnetic field is obtained by calcu lating the calibration factors giving the best fit of the two sets of data. Based on the results, a numerical fool is developed for the quantitative e valuation of magnetic field sensors applied to the measurement of spatially inhomogeneous fields.