Results 21 to 30 of about 115,036 (200)
The Acoustic Field Distribution Inside the Ultrasonic Ring Array
Archives of Acoustics, 2018 This paper presents and analyses the results of a simulation of the acoustic field distribution in sectors of a 1024-element ring array, intended for the diagnosis of female breast tissue with the use of ultrasonic tomography.
Wiktor STASZEWSKI +2 more
doaj +1 more source
Simulation of the influence of hydrophones used for the characterization of pressure field distribution in low frequency, high power ultrasonic reactor vessels [PDF]
, 2007 This paper describes the use of a finite element (FE) modeling approach to investigate the influence of different hydrophone designs in laboratory scale reactor vessels.
Gachagan, A., Harvey, G., O'Leary, R.L.
core +1 more source
Applied Sciences, 2022 Non-destructive testing of the cracks on the in-service bolt’s shank with size M18 is a challenging technical problem. Due to the weak echo energy of cracks with large buried depths, the conventional phased array ultrasonic sector scan imaging has a low ...
Jingxing Huang +5 more
doaj +1 more source
A modular FPGA-based ultrasonic array system for applications including non-destructive testing [PDF]
, 2008 This paper reports work aimed at the development of an ultrasonic imaging system comprising modular, reprogrammable building blocks, or tiles, which can be customised for multiple applications, including and within non-destructive testing (NDT), by the ...
Afroukh, F. +6 more
core +1 more source
Design and micromachining of a stretchable two-dimensional ultrasonic array
Micro and Nano Engineering, 2021 Focused ultrasound using stretchable ultrasonic arrays is a very attractive method for ultrasound neuromodulation. However, the structure and fabrication of the arrays have brought great challenges for the development of stretchable ultrasonic arrays. In
Wei Liu +3 more
doaj +1 more source
Energies, 2019 Previous studies have indicated that a basic frost layer negatively affects the heat-transfer efficiency and is difficult to remove using a single ultrasonic transducer.
Haihui Tan +4 more
doaj +1 more source
Performance of periodic piezoelectric composite arrays incorporating a passive phase exhibiting anisotropic properties [PDF]
, 2005 This paper explores the minimisation of interelement cross talk in 1-D and 2-D periodic composite array structures through the incorporation of a passive phase exhibiting anisotropic elastic properties.
Hayward, G. +4 more
core +1 more source
Spot weld analysis with 2D ultrasonic Arrays [PDF]
Journal of Research of the National Institute of Standards and Technology, 2004 This paper describes a threefold method of testing the performance of an array-based ultrasonic tool for nondestructive testing of spot welds. The tool is described in its capabilities, use, and advantages over existing counterparts. Performance testing for and the results from carrying out the testing are described.
Denisov, A. A. +4 more
openaire +2 more sources
Touching the invisible: Localizing ultrasonic haptic cues [PDF]
, 2015 While mid-air gestures offer new possibilities to interact with or around devices, some situations, such as interacting with applications, playing games or navigating, may require visual attention to be focused on a main task.
Brewster, Stephen A., Vo, Dong-Bach
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Phased array ultrasonic testing of micro-flaws in additive manufactured titanium block
Materials Research Express, 2020 While titanium components manufactured by additive manufacturing have been widely used in direct molding of complex components, their performance is strongly affected by existing internal flaws generated in the unique manufacturing process.
Xiaohui Wang +6 more
doaj +1 more source