METHOD OF ULTRASOUND TOMOGRAPHY Russian patent published in 2018 - IPC G01N29/06 

FIELD: physics.

SUBSTANCE: using for the objects internal structure visualization using ultrasonic waves. Summary of Invention is that theultrasound tomography method includes radiation into the test object and the ultrasonic signals reception from it using the antenna array, recording received by each piezoelectric transducer ultrasonic oscillations implementation with the ultrasonic signal emission independently by each of its piezoelectric transducers, and by point-by-point imaging of the test object internal structure by selection from all received implementations of those fragments, which delay times are equal to the ultrasonic signals propagation times from operating in the transmission mode piezo transmitters, to each of the ultrasonic signal focal point in the test object and from it to operating in the reception mode piezo transducers, summing these selected fragments for each focusing point and the summation result recording. Radiating is conducted into the test object by the wide radiation pattern transducers. Ultrasound signal focusing points in the test object are chosen at equal distances from each other in the form of a rectangular matrix, whose rows are parallel to the antenna array with the test object contact line. Between the antenna array adjacent transducers arranging the ultrasonic signal focal points integer number so, that the distances between the ultrasonic signal adjacent focal points are the same and smaller than the defect minimum size. Determining the ultrasonic signal value at each focal point by summing up of those ultrasonic oscillations implementations, which delay times are equal to the ultrasonic signals propagation times from operating in the transmission mode piezo transmitters, to each of the ultrasonic signal focal point in the test object and from it to operating in the reception mode piezo transducers. Received signals are memorized, color coded and visualized at each focal point.

EFFECT: reduction in the test object generated tomographic image post-processing time.

1 cl, 4 dwg