Work

Surface estimation methods with phased-arrays for adaptive ultrasonic imaging in complex components

Year: 2015

Type: conference-paper

Abstract: Immersion ultrasonic testing of structures with complex geometries may be significantly improved by using phased-arrays and specific adaptive algorithms that allow to image flaws under a complex and unknown interface. In this context, this paper presents a comparative study of different Surface Estimation Methods (SEM) available in the CIVA software and used for adaptive imaging. These methods are based either on time-of-flight measurements or on image processing. We also introduce a generalized adaptive method where flaws may be fully imaged with half-skip modes. In this method, both the surface and the back-wall of a complex structure are estimated before imaging flaws.

Source: AIP conference proceedings

DOI: 10.1063/1.4914787

Authors: S. Robert, P. Calmon, M. Calvo, L. Le Jeune, E. Iakovleva

Institutions: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Paris-Saclay - Etablissement de Saclay, Laboratoire d'Intégration des Systèmes et des Technologies

Language: English

Topic: Ultrasonics and Acoustic Wave Propagation

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1984591978

FWCI: 2.66

Cites: 2

Cited by: 21

Related to: 10