Results 41 to 50 of about 5,447,906 (320)
Applied Sciences, 2021 The quality of ultrasound images of welds is highly penalized by the dendritic structure of the material that forms during cooling. The image of a flaw is all the more degraded as a reliable description of such a medium is most of the time not possible ...
Corentin Menard +2 more
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Sensors, 2019 Ultrasonic arrays have been investigated for inspecting the quality of special materials. Unfortunately, non-destructive testing and evaluation (NDT&E) of internal defects in additive manufacturing (AM) materials are difficult due to the anisotropy ...
Wentao Li, Zhenggan Zhou, Yang Li
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Sensors, 2021 There has been an increase in the use of ultrasonic arrays for the detection of defects in composite structures used in the aerospace industry. The response of a defect embedded in such a medium is influenced by the inherent anisotropy of the bounding ...
Chirag Anand +2 more
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Applications of Flexible Ultrasonic Transducer Array for Defect Detection at 150 °C
Sensors, 2013 In this study, the feasibility of using a one dimensional 16-element flexible ultrasonic transducer (FUT) array for nondestructive testing at 150 °C is demonstrated.
Jiunn-Woei Liaw +5 more
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Encoded Total Focusing Method for Improving Data Acquisition Rate
Proceedings of the International Conference on Bioimaging, 2015 Synthetic aperture imaging techniques are capable to obtain high quality images, fully focused in both transmission and reception. However, these techniques require to perform so many emissions as elements in the array to acquire RF data. This requirement decreases acquisition rate and can result in tissue motion artifacts because of the phase
Carlos Julián Martín-Arguedas +2 more
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Sensors, 2022 The demand for cost-efficient manufacturing of complex metal components has driven research for metal Additive Manufacturing (AM) such as Wire + Arc Additive Manufacturing (WAAM).
Rastislav Zimermann +14 more
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Total focusing method with correlation processing of antenna array signals
IOP Conference Series: Materials Science and Engineering, 2018 The article proposes a method of preliminary correlation processing of a complete set of antenna array signals used in the image reconstruction algorithm. The results of experimental studies of 3D reconstruction of various reflectors using and without correlation processing are presented in the article.
Kozhemyak, Olesya Anatolievna +4 more
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Sensors, 2020 Ultrasonic array imaging algorithms have been widely developed and used for non-destructive evaluation (NDE) in the last two decades. In this paper two widely used time domain algorithms are compared with two emerging frequency domain algorithms in terms
Zeyu Zhuang +3 more
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Phased array probe for the inspection of large steel forgings
Cogent Engineering, 2021 Reliable inspection of large steel forgings is a significant problem across multiple industries. When the dimensions of forgings are at least 1000 mm in each direction, ultrasonic phased array inspection becomes difficult because conventional probes are ...
Frederic Dupont-Marillia +2 more
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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
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