Full-field optical methods for imaging ultrasonic waves and the detection of defects. KU Leuven
The visualization of acoustic waves in materials is an important tool fo r non-destructive testing applications. Since defects in materials cause perturbations in the acoustic displacement pattern, measurements of thi s pattern can help the localization and characterization of the defects. In this work, stroboscopic-interferometric visualization techniques are discussed which allow fast full-field imaging of the acoustic displaceme nt field. Two ...