contributor author | Nicolas, Paul | |
contributor author | Paul, Kassis | |
contributor author | Antoine, Ferre | |
contributor author | Andreas, Schumm | |
contributor author | Pierre-Emile, Lhuillier | |
date accessioned | 2022-02-04T23:02:28Z | |
date available | 2022-02-04T23:02:28Z | |
date copyright | 11/1/2020 12:00:00 AM | |
date issued | 2020 | |
identifier issn | 2572-3901 | |
identifier other | nde_3_4_041003.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4275970 | |
description abstract | This work focuses on non-destructive examinations using array probe ultrasonic waves on complex materials generating a high structural noise on the examined area. During an ultrasonic examination, multiple scattering of the ultrasonic waves at the grain boundaries makes the distinction between this structurally induced noise and a potential defect challenging. The difficulty of the interpretation can moreover be increased in the near surface area because of the subsurface wave. In order to ease the analysis of these acquisitions, some numerical processing methods are proposed. Statistical properties of the imaging results (for instance, total focusing method or plane wave imaging) are first calculated on several sensor positions. These statistical properties are then used to post-process the imaging results and enhance any signal values that do not belong to the structural noise expected statistics. The method, called “CORUS,” has been successfully tested on cast austenoferritic stainless steel coarse-grained mock-ups, with several dB gain compared to the classical total focusing method. It is now integrated in a civa software plugin and in a prototype version of the real-time PANTHER-phased-array acquisition system from Eddyfi Technologies. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Ultrasound Array Probe: Signal Processing in Case of Structural Noise | |
type | Journal Paper | |
journal volume | 3 | |
journal issue | 4 | |
journal title | Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems | |
identifier doi | 10.1115/1.4048583 | |
journal fristpage | 041003-1 | |
journal lastpage | 041003-7 | |
page | 7 | |
tree | Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems:;2020:;volume( 003 ):;issue: 004 | |
contenttype | Fulltext | |