Results 71 to 80 of about 648 (141)

An Adaptive Total Focusing Method for Ultrasonic Imaging ofArbitrarily Stacked Carbon Fiber-Reinforced Composites

e-Journal of Nondestructive Testing
The total focusing method (TFM) is increasingly recognized as a powerful ultrasonic imaging technique for the quality assessment and internal defect detection of carbon fiber-reinforced composites (CFRPs).
Jiancheng Cao, Jingli Yan, Hui Ding, Jun Zhang   +3 more
doaj   +1 more source

A Flexible Surgical Robot with Hemispherical Magnet Array Steering and Embedded Piezoelectric Beacon for Ultrasonic Position Sensing

Advanced Intelligent Systems
This article proposes a flexible surgical robot featuring strong magnetic steering achieved by a hemispherical magnet array actuation, and high‐accuracy ultrasonic position sensing achieved by a beacon total focusing method (b‐TFM).
Feng Ju, Xinfeng Gu, Bai Chen, Xiaoyu Sun, Zhiyuan Shen, Bruce W. Drinkwater, Liping Ding   +6 more
doaj   +1 more source

Approaching code-compliant Non-Destructive Testing of carbon steel weld using Total Focusing Method technique

e-Journal of Nondestructive Testing
The Total Focusing Method (TFM) technique is an advanced Non-Destructive Testing (NDT) Ultrasonic Testing (UT) technique. It is usually used together with special acquisition configurations such as Full Matrix Capture (FMC) or Plane Wave Imaging (PWI ...
Wang Ke, Weina Ke
doaj   +1 more source

Image reconstruction from compressed measurements for ultrasound NDT

e-Journal of Nondestructive Testing
In ultrasound NDT, Delay-and-Sum schemes are commonly used to reconstruct images from the measurement data. For single channel pulse-echo measurements, this is called Synthetic Aperture Focusing Technique (SAFT).
Eduardo Pérez, Jan Kirchhof, Fabian Kieg, Florian Römer   +3 more
doaj   +1 more source

Research on the Vector Coherent Factor Threshold Total Focusing Imaging Method for Austenitic Stainless Steel Based on Material Characteristics

Metals
The degree of anisotropy and heterogeneity in coarse-grained materials significantly affects ultrasonic propagation behavior and scattering. This paper proposes a vector coherent factor threshold total focusing imaging method (VCF-T-TFM) for austenitic ...
Tianwei Zhao, Ziyu Liu, Donghui Zhang, Junlong Wang, Guowen Peng   +4 more
doaj   +1 more source

Improving defect detection of nuclear welds using adaptive imaging based on uncertain material parameters optimization

Acta Acustica
Weld inspection in the nuclear sector is crucial for ensuring the structural integrity and safety of reactor cooling piping systems. Given the strict safety requirements, reliable and accurate Non-Destructive Evaluation (NDE) techniques are essential for
Boukham Ali, Barras Jordan, Marmonier Maxance, Leymarie Nicolas   +3 more
doaj   +1 more source

Fast Ultrasonic Imaging with Total Focusing Method (TFM) for Inspection of Additively Manufactured Polymer Composite Component

ASNT 27th Annual Research Symposium Proceedings, 2018
Hossein Taheri, Lucas Koester, Timothy, Bigelow, Leonard J. Bond, Dominique Braconnier, Ewen Carcreff, Gavin Dao, Alan Caulder, Ahmed Arabi Hassen   +8 more
openaire   +2 more sources

Imaging of vertical surface-breaking cracks in concrete members using ultrasonic shear wave tomography. [PDF]

Sci Rep, 2023
Kuchipudi ST, Pudovikov S, Wiggenhauser H, Ghosh D, Rabe U.   +4 more
europepmc   +1 more source

Screening of Corrosion in Storage Tank Walls and Bottoms Using an Array of Guided Wave Magnetostrictive Transducers. [PDF]

Sensors (Basel)
Vinogradov S, Akimov N, Cobb A, Fisher J.   +3 more
europepmc   +1 more source

Research on Acoustic Field Correction Vector-Coherent Total Focusing Imaging Method Based on Coarse-Grained Elastic Anisotropic Material Properties. [PDF]

Sensors (Basel)
Zhao T, Liu Z, Zhang D, Wang J, Peng G.
europepmc   +1 more source