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Characterization of a New Symmetrical Cancelation Method for Magnetic Induction Tomography

Brás, N. ; Martins, RCM ; Serra, A.

Characterization of a New Symmetrical Cancelation Method for Magnetic Induction Tomography, Proc IMEKO TC4 Symp., Florence, Italy, Vol. 1, pp. 922 - 927, September, 2008.

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Abstract
Magnetic Induction Tomography (MIT) is an imaging technique for passive electrical properties
used in industrial and biological imaging. In the case of biological purposes, high resolution measures of the
magnetic field induced in the body and the ability to acquire data at several points along its border are two
major challenges of MIT. In a previous work we have developed a prototype that allows accurate placement of
sensing and source coils, improving data quality and quantity for the tomographical image processing. Several
alternatives for stability and resolution improvements have been presented. However, all of them had
limitations in terms of stability and resolution for a moving coils system. This paper presents a new geometric
setup designed for a moving sensing coils prototype that allows the cancelation of the carrier field
independently of the acquiring position.