At present,in casing well logging,ultrasonic imaging well logging tool is mainly used in cement bond appraisal and casing inspection,so as to makes intuitionistic and accurate judgment to the well cementation quality and the casing pipe condition.

However,by applying gyro-positioning technique to locate artificial magnetic field,the ultrasound imaging produced by measurement processing,where AC(Alternating Current) signal is induced by rotated coils in the artificial magnetic field as the triggering signal for image scanning,can quickly and accurately ascertain the fault.

To heighten the frame rate of ultrasound imaging system,the thesis focused on the dual beamformation technique and its hardware implementation was introduced.

Employing the impulse response model of ultrasound transducer and the modulating-demodulating principle of FM signal,the simulation for ultrasound imaging is carried out.