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
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Secondary Interface Echoes Suppression for Immersion Ultrasonic Imaging Based on Phase Circular Statistics Vector [PDF]
Sensors, 2023 Immersion ultrasonic phased array imaging technology offers great advantages, particularly in coupling and automatic detection of industrial non-destructive testing (NDT).
Ming Chen +5 more
doaj +2 more sources
Laser-induced ultrasonic measurements for the detection and reconstruction of surface defects
Acta Acustica, 2021 Laser-induced ultrasonic measurement is a non-contact non-destructive technology that can be employed for the testing and assessment of surface defects.
Qian Feiming +5 more
doaj +1 more source
Applied Sciences, 2021 Full-matrix capture (FMC)-based ultrasonic imaging provides good sensitivity to small defects in non-destructive testing and has gradually become a mainstream research topic.
Bei Yu +5 more
doaj +1 more source
Research and Review Journal of Nondestructive Testing, 2023 The total focusing method (TFM) is a post-processing imaging technique applied on full matrix capture (FMC) ultrasonic inspection (UT) dataset. In TFM the ultrasonic wave energy is synthetically focused on every pixel in the image region of interest ...
Xiangyu Lei +2 more
doaj +1 more source
Low Frequency GFRP Imaging with Variable Aperture TFM
e-Journal of Nondestructive Testing, 2023 Graphite or glass fiber reinforced polymer (GFRP) inspections are usually made with a zero-degree linear scan (L-scan) (1). Total focusing may not be applicable for some anisotropic materials, but in some cases, TFM may increase the ultrasound imaging ...
Renato Nogueira +2 more
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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
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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 +1 more source
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.
openaire +2 more sources
Total focussing method for volumetric imaging in immersion non destructive evaluation [PDF]
, 2007 This paper describes the use of a 550 (25x22) element 2MHz 2D piezoelectric composite array in immersion mode to image an aluminum test block containing a collection of artificial defects.
Drinkwater, B. +6 more
core +1 more source