Results 11 to 20 of about 2,327,371 (190)
Sensors, 2023 In the article, the study of the quality of tomogram focusing during the inspection of objects with curved surfaces by flexible acoustic array was described.
Dmitry A. Sednev +4 more
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SN Applied Sciences, 2023 Article Highlights This study uses neural networks to probabilistically segment TFM images and investigate uncertainty. The probabilistic U-Net outperforms other models, and high uncertainty is found in the shadow zone, reflections, and small defects ...
Simon Schmid +2 more
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Locally Optimal Subsampling Strategies for Full Matrix Capture Measurements in Pipe Inspection
Applied Sciences, 2021 In ultrasonic non-destructive testing, array and matrix transducers are being employed for applications that require in-field steerability or which benefit from a higher number of insonification angles.
Fabian Krieg +5 more
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Aerospace, 2023 Carbon fiber-reinforced polymers (CFRP) are extensively used in aerospace applications. Out-of-plane wrinkles frequently occur in aerospace CFRP parts that are commonly large and complex.
Tengfei Ma +3 more
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Calibration of ultrasonic hardware for enhanced total focusing method imaging [PDF]
Insight - Non-Destructive Testing and Condition Monitoring, 2020 Experimental variation from ultrasonic hardware is one source of uncertainty in measured ultrasonic data. This uncertainty leads to a reduction in the accuracy of images generated from these data. In this paper, a quick, easy-to-use and robust methodology is proposed to reduce this uncertainty in images generated using the total focusing method (TFM).
Ingram, M. +4 more
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Energies, 2022 The defects in the welds of energy pipelines have significantly influenced their safe operation. The inefficient and inaccurate detection of the defects may give rise to catastrophic accidents.
Haibin Wang +6 more
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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
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Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review
Applied Sciences, 2022 An ultrasonic phased array consists of multiple ultrasonic probes arranged in a certain regular order, and the delay time of the excitation signal sent to each array element is controlled electronically.
Qian Xu, Haitao Wang
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Applied Sciences, 2023 The basic principle of ultrasound is to relate the time of flight of a received echo to the location of a reflector, assuming a known and constant velocity of sound.
Michał K. Kalkowski +5 more
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On Dispersion Compensation for GAW-Based Structural Health Monitoring
Sensors, 2023 Guided acoustic waves (GAW) have proven to be a useful tool for structural health monitoring (SHM). However, the dispersive nature of commonly used Lamb waves compromises the spatial resolution making it difficult to detect small or weakly reflective ...
Alexander Backer +2 more
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