Optimum exciter design for Magnetic Induction Tomography (MIT).

Purpose – The purpose of this paper is to present the methodology of designing an exciter for Magnetic Induction Tomography (MIT). The design of the exciter must satisfy the following requirements: maximize MIT system sensitivity and minimize harmful influence on electronic MIT equipment. Design/methodology/approach – Two objective functions are considered, namely: a magnetic flux density in the protected regions and a module of the eddy-current density vector in the object under test in the vicinity of a sensor. The paper shows a multi-objective optimization technique (based on the weighted sum method) which, by coupling the finite-element method with a genetic algorithm, supports the design of the exciter. Findings – It is possible to design in a relatively simple way an exciter for MIT under the given assumptions. Originality/value – Detailed description of the multi-objective optimization procedure has been presented. [ABSTRACT FROM AUTHOR]