Title: Three-dimensional broadband nonlinear phased array imaging

Abstract

System include an ultrasonic transducer configured to couple to a nondestructive testing (NDT) sample and configured to produce and direct an ultrasonic probe wave at a selected frequency into a subsurface region of the NDT sample, a 3D laser scanning vibrometer configured to direct a detection beam in a scan area on a surface of the NDT sample and to receive a return beam from the scan area, and to detect, based on the return beam, a 3D motion of the surface across a wideband frequency range, and a processor, and a memory configured with instructions that, when executed by the processor, cause the processor to produce sub-surface image data of the NDT sample at multiple harmonics of the selected frequency in the wideband frequency range based on the detected 3D surface motion, wherein the sub-surface image data describes a nonlinear defect response produced in the NDT sample by interaction of the ultrasonic probe wave with the subsurface region.

Inventors:

Remillieux, Marcel; Ohara, Yoshikazu

Issue Date:

2023-07-25

Research Org.:

Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

2221995

Patent Number(s):

11709093

Application Number:

17/034,881

Assignee:

Triad National Security, LLC (Los Alamos, NM); Tohoku University (Sendai, JP)

DOE Contract Number:  

89233218CNA000001

Resource Type:

Patent

Resource Relation:

Patent File Date: 09/28/2020

Country of Publication:

United States

Language:

English