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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Phase-Consistency-Adaptive Multi-Path Total Focusing Ultrasonic Imaging for Delamination Quantification in L-Shaped CFRP Corner Parts [PDF]
SensorsThe delay-and-sum total focusing method (TFM) for ultrasonic full matrix capture (FMC) depends on accurate ray path and travel time computation. In L-shaped carbon fiber-reinforced polymer (CFRP) corner parts, elastic anisotropy, multilayer stacking, and
Jie Ding +8 more
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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
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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
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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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Double Sided Traction Force Microscopy: A Method to Confine Cells for Physiologically Relevant Force Measurements. [PDF]
Cytoskeleton (Hoboken)ABSTRACT In this paper we describe a technique to make a confined environment of variable stiffness that is suitable for high‐resolution live‐cell imaging. This versatile and adaptable technique enables cell confinement between soft elastic surfaces made from polyacrylamide gels.
Caillier A, Oakes PW.
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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
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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
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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
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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
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