Results 31 to 40 of about 5,447,906 (320)
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
openaire +2 more sources
Journal of nondestructive evaluation, 2023 As the demand of structural integrity in manufacturing industries is increasing, the ultrasonic array technique has drawn more attention thanks to its inspection flexibility and versatility. By taking advantage of the possibility of individual triggering
Xiangyu Lei +2 more
semanticscholar +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Laser-induced ultrasonic measurements for the detection and reconstruction of surface defects
Acta Acustica, 2021 Laser-induced ultrasonic measurement is a non-contact non-destructive technology that can be employed for the testing and assessment of surface defects.
Qian Feiming +5 more
doaj +1 more source
Ultrasonic phased array total focusing method based on sparse deconvolution [PDF]
Proceedings of Meetings on Acoustics, 2018 Ultrasonic phased array total focusing method (TFM) has been widely used in the field of non-destructive testing (NDT) as an advances post-processing imaging algorithm. It shows great potential in defect detection and characterization. However, due to the small number of excitation elements and large amount of collecting data, its temporal resolution ...
Bei Yu +4 more
openaire +1 more source
Sensors, 2020 Plane wave imaging (PWI) is attracting more attention in industrial nondestructive testing and evaluation (NDT&E). To further improve imaging quality and reduce reconstruction time in ultrasonic imaging with a limited active aperture, an optimized PWI ...
Hao Sui +3 more
doaj +1 more source
Plane Wave Imaging through Interfaces
Sensors, 2021 Plane Wave Imaging (PWI) has been recently proposed for fast ultrasound inspections in the Non-Destructive-Testing (NDT) field. By using a single (or a reduced number) of plane wave emissions and parallel beamforming in reception, frame rates of hundreds
Guillermo Cosarinsky +2 more
doaj +1 more source