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To develop image logging technology, this paper studies array magnetoacoustic tomography with magnetic induction(MAT-MI) on the basis of contrasting the research of home and abroad. Through design, computer simulation and experiment studies on generating system of pulsed magnetic field, we demonstrated that the pulsed power supply can realize narrow width, high peak and repeat pulsed current with...
Magnetoacoustic impedance tomography with magnetic induction (MAT-MI) is a new imaging method. Its images reflect conductivity distribution. In this paper, we firstly proposed the numerical simulation method of multi-physics fields coupling to obtain the distribution of acoustic field in MAT-MI without the static magnetic field. Simple acoustic detection experiments are conducted to validate the algorithm...
New technique of magnetoacoustic tomography with magnetic induction (MAT-MI) is introduced. Through improving the image reconstruction algorithm, the imaging object need not be placed in the uniform magnetic field area, and this make it possible for we to use only one permanent-magnet and one exciting coil to achieve image reconstruction. Therefore, the new technique can simplify the structure of...
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