Total Focusing Method (TFM) and Phase Coherence Imaging (PCI) applied to various industrial cases [PDF]
e-Journal of Nondestructive Testing, 2023 Les techniques d’imageries ultrasonores basées sur la Total Focusing Method (TFM) sont de plus en plus utilisées dans les applications industrielles.
Frederic Reverdy +2 more
doaj +10 more sources
High-frequency Total Focusing Method (TFM) imaging in strongly attenuating materials with the decomposition of the time reversal operator associated with orthogonal coded excitations [PDF]
AIP Conference Proceedings, 2017 In the present work, the Total Focusing Method (TFM) is used to image defects in a High Density Polyethylene (HDPE) pipe. The viscoelastic attenuation of this material corrupts the images with a high electronic noise. In order to improve the image quality, the Decomposition of the Time Reversal Operator (DORT) filtering is combined with spatial Walsh ...
Villaverde, E.L., Robert, S., Prada, C.
exaly +5 more sources
Total focusing method (TFM) robustness to material deviations [PDF]
AIP Conference Proceedings, 2018 Guillaume Painchaud-April +2 more
exaly +4 more sources
Developing flaw sizing methodology in Total Focusing Method (TFM) by EDM calibration blocks [PDF]
e-Journal of Nondestructive TestingThe Total Focusing Method (TFM) represents a significant advancement in ultrasonic inspection, delivering high-resolution imaging by leveraging phased array technology combined with sophisticated data processing algorithms. This synergy enables detailed visualization of flaws in various materials, thereby improving flaw detection and ...
Mohammad E Bajgholi +4 more
openaire +2 more sources
Enhanced Near-Surface Flaw Detection in Additively Manufactured Metal Ti-5Al-5V-5Mo-3Cr Using the Total Focusing Method [PDF]
SensorsAdditive manufacturing (AM) enables the fabrication of complex components with high geometric freedom, but it can introduce near-surface flaws due to rapid solidification, resulting in porosity and lack of fusion. In addition, localized melting and steep
Kate van Herpt +4 more
doaj +2 more sources
NDT & E InternationalDevelopments in machine learning and deep convolutional networks (CNNs) have enabled automated assessment of nondestructive evaluation (NDE) data. Ultrasonic data is especially challenging for automated evaluation due to its complexity, multi-channel nature, and volume.
Gonçalo Sorger +2 more
openaire +3 more sources
Probe Standoff Optimization Method for Phased Array Ultrasonic TFM Imaging of Curved Parts
Sensors, 2021 The reliability of the ultrasonic phased array total focusing method (TFM) imaging of parts with curved geometries depends on many factors, one being the probe standoff.
Jorge Franklin Mansur Rodrigues Filho +1 more
doaj +3 more sources
Ultrasonic Phased Array Sparse TFM Imaging Based on Virtual Source and Phase Coherent Weighting
IEEE Access, 2020 Total focus method (TFM) is an ultrasonic phased array imaging method and has a larger dynamic focusing range and higher spatial resolution than traditional imaging methods.
Jin Yang, Lin Luo, Kai Yang, Yu Zhang
doaj +3 more sources
Sensors, 2018 The ultrasonic phased array total focusing method (TFM) has the advantages of full-range dynamic focusing and high imaging resolution, but the problem of long imaging time limits its practically industrial applications.
Hongwei Hu +3 more
doaj +3 more sources
Full-Matrix Imaging in Fourier Domain towards Ultrasonic Inspection with Wide-Angle Oblique Incidence for Welded Structures [PDF]
SensorsThe total focusing method (TFM) has been increasingly applied to weld inspection given its high image quality and defect sensitivity. Oblique incidence is widely used to steer the beam effectively, considering the defect orientation and structural ...
Mu Chen +3 more
doaj +2 more sources