Results 51 to 60 of about 202,142 (326)
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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Rendering volumetric haptic shapes in mid-air using ultrasound:Proceedings of ACM SIGGRAPH Asia 2014 [PDF]
, 2014 We present a method for creating three-dimensional haptic shapes in mid-air using focused ultrasound. This approach applies the principles of acoustic radiation force, whereby the non-linear effects of sound produce forces on the skin which are strong ...
Carter, Tom +3 more
core +2 more sources
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
doaj +1 more source
Методы и средства измерения пространственно-временных характеристик ультразвуковых линейных фазированных антенных решеток [PDF]
, 2015 Розглянуті методи вимірювання просторово-часових характеристик ультразвукових лінійних фазованих антенних решіток. Представлені структурні схеми розроблених систем вимірювання.
Kraskovskyj, O. P. +8 more
core +1 more source
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
doaj +1 more source
Focusing Modeling of OPFC Linear Array Transducer by Using Distributed Point Source Method
Abstract and Applied Analysis, 2014 The improvement of ultrasonic phased array detection technology is a major concern of engineering community. Orthotropic piezoelectric fiber composite (OPFC) can be constructed to multielement linear array which may be applied conveniently to actuators ...
Ziping Wang, Ying Luo
doaj +1 more source
IEEE Access, 2020 Ultrasonic phased array technology is used in various fields. Traditional full phased arrays place elements in every position of a uniform lattice with half-wavelength spacing between the lattice points, so the hardware cost is very high.
Han Zhang +3 more
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Metascreen-Based Acoustic Passive Phased Array [PDF]
, 2015 Conventional phased arrays require a large number of sources in forming a complex wave front, resulting in complexity and a high cost to operate the individual sources.
Cheng, Jian-chun +4 more
core +1 more source
An annular array with fiber composite microstructure for far field NDT imaging applications [PDF]
, 2010 This paper describes the design and fabrication of a reduced element count annular array for far field NDT imaging applications, built with a random fiber piezoelectric composite microstructure.
Dziewierz, J. +5 more
core +1 more source
Frontiers in Mechanical EngineeringHigh-voltage cable terminal lead seals may develop defects such as holes, cracks, or delamination due to substandard installation quality or external forces during operation.
Peng Ziping +5 more
doaj +1 more source