Electric impedance tomography using tetrapolar circuit method with Eddy current

For realization of electric impedance tomography (EIT), we proposed a new technique applying the tetrapolar circuit method with eddy current, theoretically. Based on the principle of this technique, we made a measurement system and performed some model experiments in order to confirm usefulness of this technique. In the experimental results we got some two dimensional images of impedance which were corresponding to the original model shape. Therefore, we consider this method should be very efficient to realize EIT.