Results 91 to 100 of about 931 (167)
Ultrasonic wave propagation in heterogenous media
, 2012 The non-destructive testing of austenitic steel welds using ultrasound is of vital importance for assessing safety critical structures such as those found in the nuclear industry.
Bird, C. +3 more
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, 2016 Conference of 43rd Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2016 ; Conference Date: 17 July 2016 Through 22 July 2016; Conference Code:126650International audienceThe use of composite structures has importantly increased ...
Aschy, Ameni +10 more
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Application of Golay-based total focusing method using a high-frequency, lead-free, flexible ultrasonic array for inspection of thick non-planar industrial components [PDF]
The compromise between axial resolution and penetration depth in ultrasound imaging poses a challenge for high-frequency ultrasonic arrays, limiting their ability to effectively inspect thick components in industrial applications.
Hughes, David +10 more
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e-Journal of Nondestructive TestingThe 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 TestingIn 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 +3 more
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Modelling of echo amplitude fidelity for transducer bandwidth and TFM pixel resolution [PDF]
, 2020 The unrectified (RF) A-scan contains additional information in the phase component compared to its envelope-detected equivalent, but requires higher temporal sampling rates for accurate representation and measurement.
Mohseni, Ehsan +6 more
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Inspection design using 2D phased array, TFM and cueMAP software
, 2014 A simulation suite, cueMAP, has been developed to facilitate the design of inspection processes and sparse 2D array configurations. At the core of cueMAP is a Total Focusing Method (TFM) imaging algorithm that enables computer assisted design of ...
Gachagan, Anthony +4 more
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ASNT 27th Annual Research Symposium Proceedings, 2018 Hossein Taheri +8 more
openaire +2 more sources
Sparse Total Focus Imaging of Rail Transit Rail Defects Based on Grey Wolf Algorithm
Chengshi guidao jiaotong yanjiu[Objective] Using the ultrasonic phased array technology can realize high-precision imaging detection of rail transit rail defects. However, the widely used FMC-TFM (full matrix capture-total focusing method) has the disadvantages of long computation ...
Lubin QIAN +4 more
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Study and implementation of fast compressive 3-D total focusing method ultrasonic imaging using 2-D sparse arrays [PDF]
This thesis explores the increasing focus on three-dimensional imaging in ultrasonic nondestructive testing (NDT), emphasizing the significance of phased array ultrasonic testing (PAUT) and the emerging potential of the total focusing method (TFM) for ...
Pereira Piedade, Lucas
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