Total Focusing Method (TFM) and Phase Coherence Imaging (PCI) applied to various industrial cases
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 +6 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 +6 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 +4 more sources
Optimal Design of Sparse Matrix Phased Array Using Simulated Annealing for Volumetric Ultrasonic Imaging with Total Focusing Method [PDF]
SensorsThe total focusing method (TFM) is often considered to be the ‘gold standard’ for ultrasonic imaging in the field of nondestructive testing. The use of matrix phased arrays as probes allows for high-resolution volumetric TFM imaging.
Dmitry Olegovich Dolmatov +1 more
doaj +3 more sources
Single-Crystal Inspection Using an Adapted Total Focusing Method [PDF]
SensorsSingle-crystal superalloys have attracted considerable interest in aero engine blade manufacture due to their superior mechanical properties, which maintain structural integrity at high temperatures.
Iratxe Aizpurua-Maestre +4 more
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 +4 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
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
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
Total focusing method (TFM) robustness to material deviations [PDF]
AIP Conference Proceedings, 2018 Guillaume Painchaud-April +2 more
openaire +3 more sources