The method for acoustic and EM waves field visualization and based on it experimental setup for ultrasonic tomography

In the Laboratory of Applied Electrodynamics a holographic technique for the visualization of wave fields has previously been developed. This method is based on the method of auxiliary sources (MAS) and allows to reconstruct an image of the object(s) illuminated by an ultrasonic or EM field source by processing the data of the scattered field, the amplitudes and phases measured in the nearby zone. The numerical experiments were done to verify this method and prove the proposed approach. Together with this, an experimental setup was constructed to measure the complex values of the ultrasonic field´s scattered from the illuminated object(s). This data was used for the further numerical processing and the reconstruction of the wave field and object image