At the same time,combining with the former results of acoustic and resistivity imaging log in simulation wells,numeric simulation technique and statistic analysis technique are used to get the quantitative equations of some fracture parameters based on acoustic and resistivity attenuation theory.

The fluxgate sensor of supersonic TV imaging logging tool was used to determine the position of image.

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.

To realize this automatic test system, not only the newly developed automation technology and ultrasonic signal processing technique, but also the ultrasonic image processing technique was applicated.