Results 21 to 30 of about 2,754 (159)
International Journal of Distributed Sensor Networks, 2013 Near-field ultrasonic phased array theory is researched and utilized in the carbon-fiber wing box to identify the damage in the structure. Near-field ultrasonic phased array based structural health monitoring is researched to overcome the limitation of ...
Yajie Sun +3 more
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An Omnidirectional Near-Field Comprehensive Damage Detection Method for Composite Structures
Applied Sciences, 2019 As one of the active structural health monitoring methods based on the Lamb wave, the ultrasonic phased-array damage detection method can provide information such as damage location and range more intuitively, which is why this method is a research ...
Zhiling Wang +3 more
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Applied Sciences, 2021 The use of pulse-compression in ultrasonic non-destructive testing has assured, in various applications, a significant improvement in the signal-to-noise ratio.
Muhammad Khalid Rizwan +4 more
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Strategies for data acquisition using ultrasonic phased arrays [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2018 Ultrasonic phased arrays have produced major benefits in a range of fields, from medical imaging to non-destructive evaluation. The maximum information, which can be measured by an array, corresponds to the Full Matrix Capture (FMC) data acquisition technique and contains all possible combinations of transmitter–receiver signals.
A. Velichko, A. J. Croxford
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Optimization Design of Phased Array Ultrasonic Transducer Arrays
DEStech Transactions on Computer Science and Engineering, 2018 The design and selection of the transducer array parameters directly affect the performance of the audio directional transmission system. In this paper, the influence of the number of array element, the pitch, the frequency and the deflection angle on the array directivity is analyzed in detail.
Zhi-qian KANG, Xi-hai LI, Xiang-yu LI
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Simulation Based Investigation of Focusing Phased Array Ultrasound in Dissimilar Metal Welds
Nuclear Engineering and Technology, 2016 Flaws at dissimilar metal welds (DMWs), such as reactor coolant systems components, Control Rod Drive Mechanism (CRDM), Bottom Mounted Instrumentation (BMI) etc., in nuclear power plants have been found.
Hun-Hee Kim +4 more
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Phased array probes for air-coupled ultrasonic testing based on cellular polymer
Research and Review Journal of Nondestructive Testing, 2023 Air-coupled ultrasonic testing is an established alternative to conventional ultrasonic methods for testing of light-weight components in aerospace and automotive industry.
Mate Gaal +6 more
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Phased Array Beamforming Methods for Powering Biomedical Ultrasonic Implants
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2022 Millimeter-scale implants using ultrasound for power and communication have been proposed for a range of deep-tissue applications, including neural recording and stimulation. However, published implementations have shown high sensitivity to misalignment with the external ultrasound transducer.
Braeden C. Benedict +2 more
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Ultrasonic phased array imaging of contact-acoustic nonlinearity [PDF]
Proceedings of Meetings on Acoustics, 2016 Classically, ultrasonic arrays achieved physical beam-forming through the application of phase delays to the parallel transmission of elements. Alternatively, beam-forming may be emulated through post-processing of sequentially transmitted array data.
Jack N. Potter +3 more
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Study on Denoising Method of Weld Defect Signal Based on SSA-VMD-WPD
Applied SciencesDefects in welds can affect the structural safety and reliability of workpieces. Currently, the method of using phased array ultrasonic inspection technology for non-destructive testing of weld structures with high detection efficiency, good sensitivity,
Xiangqing Chen +4 more
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