In this work, we model ACU transmission in delaminations, with focus in the interference
effects resulting from multiple ultrasonic reflections within the delamination layers and the …

Air-coupled ultrasound (ACU) is increasingly used for nondestructive testing (NDT). With
ACU, no contact or coupling agent (eg, water and ultrasound gel) is needed between …

Round timber and wood products are measured, sorted, and graded at different stages in
the wood-value chain starting already at the stem level in the forest. This chapter gives an …

Quantitative and reproducible air-coupled ultrasound (ACU) testing requires
characterization of the volumetric pressure fields radiated by ACU probes. In this paper, a …

Air-coupled ultrasound (ACU) is increasingly being used for non-destructive material testing,
for instance, to assess cracks, delamination or mechanical properties. The advantage of this …

A standard quality control in the production of wood based materials is the check for
delaminations. Panels with delaminations risk breaking in later processes or when they are …

Die Schallfeldinformationen eines Ultraschallsenders werden immer dann benötigt, wenn
für die zerstörungsfreie Prüfung mit luftgekoppelten Ultraschall ein Sender für einen …