公开(公告)号：US11029289B2

公开(公告)日：2021-06-08

申请号：US15849195

申请日：2017-12-20

Applicant: OLYMPUS AMERICA INC.

Inventor： Jason Habermehl ,  Benoit Lepage

IPC: G01N29/07 ,  G01N29/44 ,  G01N29/34 ,  G01N29/06

Abstract: Disclosed is an apparatus and method for TFM post-processing of a FMC or HMC matrix acquired with an ultrasonic array probe. Post-processing is performed by calculating TFM beam forming amplitudes using round-trip delays to a focal point lying at depth d on a line at angle θ within the test object. Based on the beam forming amplitudes over a range of values of d within the imaging volume, a calculated A-scan is derived, which is equivalent to the response A-scan produced in conventional phased array imaging, but has the advantage of being focused at all points along the line. By post-calculation of calculated A-scans over a range of angles θ within the imaging volume, an imaging method is derived which is readily adapted to existing codes based on conventional A-scan imaging.

公开(公告)号：US10908122B2

公开(公告)日：2021-02-02

申请号：US15472603

申请日：2017-03-29

Applicant: OLYMPUS AMERICA INC.

Inventor： Benoit Lepage ,  Guillaume Painchaud-April ,  Jason Habermehl

IPC: G01N29/06 ,  G01N29/26 ,  G01N29/30 ,  G01N29/04

Abstract: Disclosed is a phased array ultrasound total focusing method in which the ultrasound energy is transmitted as plane waves and the response signals are processed as plane waves. The processing is adaptively corrected to account for geometric variations in the probes and the part being inspected. Methods are disclosed for measuring the geometric variations of the probes and the part.