Results 51 to 60 of about 1,899,314 (382)
Phased array ultrasonic testing of gear tooth
Cogent EngineeringThis paper proposes a new testing method, phased array ultrasonic testing, for the internal defects of gear teeth, which can be used to inspect the teeth of final products, breaking the limitations of incomplete volume coverage of conventional ultrasonic
Liang Wang, Chenchen Ma
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Investigating the influence of the constituent materials on the performance of periodic piezoelectric composite arrays [PDF]
, 2007 This paper describes a theoretical investigation into the influence of the constituent materials on periodic composite array transducer performance. A finite element (FE) model, configured in PZFlex, is used to analyze the performance of a wedge coupled ...
Gachagan, A. +3 more
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Acoustic Field of a Linear Phased Array: A Simulation Study of Ultrasonic Circular Tube Material
Sensors, 2019 As ultrasonic wave field radiated by an ultrasonic transducer influences the results of ultrasonic nondestructive testing, simulation and emulation are widely used in nondestructive testing. In this paper, a simulation study is proposed to detect defects
Zhitao Xiao +6 more
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Micromachines, 2022 Piezoelectric micromachined ultrasonic transducers (PMUTs) have been widely applied in distance sensing. However, the sensing distance of currently reported miniaturized ultrasonic sensors (e.g., PMUTs or CMUT) is still limited up to a certain range (e.g.
Haolin Yang +5 more
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Experimental investigation of inter-element isolation in a medical array transducer at various manufacturing stages [PDF]
, 2016 This work presents the experimental investigation of vibration maps of a linear array transducer with 192 piezoelements by means of a laser Doppler vibrometer at various manufacturing finishing steps in air and in water.
Bini, Fabiano +2 more
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Automated Flaw Detection in Multi-channel Phased Array Ultrasonic Data Using Machine Learning
Journal of nondestructive evaluation, 2021 Modern ultrasonic inspections utilize ever-richer data-sets made possible by phased array equipment. A typical inspection may include tens of channels with different refraction angle, that are acquired at high speed.
Oskar Siljama +3 more
semanticscholar +1 more source
A Model for Multiview Ultrasonic Array Inspection of Small Two-Dimensional Defects
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019 The multiview total focusing method (TFM) is an imaging algorithm for ultrasonic full matrix array data that exploits internal reflections and mode conversions in the inspected object to create multiple images, the views.
Nicolas Budyn +4 more
semanticscholar +1 more source
IEEE Transactions on Biomedical Circuits and Systems, 2021 A 2D ultrasonic array is the ultimate form of a focused ultrasonic system, which enables electronically focusing beams in a 3D space. A 2D array is also a versatile tool for various applications such as 3D imaging, high-intensity focused ultrasound ...
C. Seok +4 more
semanticscholar +1 more source
A review of miniaturised Non-Destructive Testing technologies for in-situ inspections [PDF]
, 2018 Non-destructive testing (NDT) techniques have become attractive trends of product manufacturing, installation and post-maintenance in the aerospace, automotive and manufacturing industry, because of its benefits such as cost saving, easy to use and high ...
Addepalli +12 more
core +1 more source
Archives of Acoustics, 2019 This paper presents the results of acoustic field distribution simulations for the 1024-element ultrasonic ring array intended for the diagnosis of female breast tissue with the use of ultrasound tomography.
Wiktor STASZEWSKI +2 more
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