D3-a2 - Automated Implementation of Selective Matrix Capture using Laser-Induced Phased Arrays for Large Area Inspection
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- D3-a - Laser Ultrasonics Applications in Industry and Aeronautics
- Author(s)
- D. Pieris, P. Kamintzis, P. Lukacs, G. Davis, T. Stratoudaki - University of Strathclyde, Glasgow (United Kingdom)
- Pages
- 255 - 258
- DOI
- 10.5162/Ultrasonic2025/D3-a2
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
In-process non-destructive evaluation (NDE) is critical for the widespread adoption of additive manufacturing (AM) in high-value industries. Existing inspection methods struggle to cope with the high deposition rates and complex geometries from processes such as wire arc additive manufacturing (WAAM). Laser-induced phased arrays (LIPA) offer a remote, couplantfree ultrasonic inspection technique capable of imaging subsurface features in optically opaque components. While full matrix capture (FMC) has previously been used for data acquisition, its reliance on a large number of array elements results in prohibitively long inspection times. Selective matrix capture (SMC) is a novel data acquisition method designed to enhance inspection efficiency. This paper presents the automation of SMC, a two-stage process that first locates the presence of a defect using a sparse array, then uses an optimised array to image and classify the defect.