The invention discloses a rotation-type coil group applicable to magnetic induction
tomography and an arrangement method thereof. The arrangement method comprises the following steps: a group of coils are arranged in an annular form by surrounding a tested object, one coil is an exciting coil, the other coils are measuring coils,
alternating current is switched in the exciting coil, the
magnetic field change caused by eddy induction inside the tested object can be detected by the measuring coils, and sufficient measurement data is obtained by the rotation mode for meeting the requirement of the magnetic induction
tomography. The rotation
modes of the coil group comprise an object rotation mode, a coil rotation mode and a
double rotation mode. According to the invention, the number of coils is reduced by 50%, the
coupling relation between the coils is simplified, and the
measurement precision and stability of a detecting
system can be favorably improved; with the rotation
modes, measurement data same as that of a conventional magnetic induction
tomography coil
system can be obtained, and more measurement data can be obtained by controlling the rotation angle; and in addition, being matched with the improved tomography
algorithm, the rotation-type coil group disclosed by the invention can achieve better
imaging quality.