Results 31 to 40 of about 1,899,314 (382)
Continuous monitoring with a permanently installed high-resolution ultrasonic phased array
Structural Health Monitoring, 2023 High-resolution defect detection is an integral part of non-destructive testing (NDT). Ultrasonic array transducers have been developed to respond to this need and provide high-resolution images for such applications.
Xiaoyu Sun, A. Croxford, B. Drinkwater
semanticscholar +1 more source
Cailiao gongcheng, 2020 Aiming at the problem of accurate identification of delamination defects of composite laminates, an optimization method of activation aperture of phased array ultrasonic testing was proposed by simulation and experiment, and the effects of the activation
CAO Hong-yi +6 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
Independent trapping and manipulation of microparticles using dexterous acoustic tweezers [PDF]
, 2014 An electronically controlled acoustic tweezer was used to demonstrate two acoustic manipulation phenomena: superposition of Bessel functions to allow independent manipulation of multiple particles and the use of higher-order Bessel functions to trap ...
Cochran, Sandy +6 more
core +4 more sources
MOSAIC: An integrated ultrasonic 2-D array system [PDF]
, 2007 An investigation into the development of an ultrasound imaging system capable of customization for multiple applications via the tessellation of in-system programmable scalable modules, or tiles, is presented here.
Cochran, S. +4 more
core +1 more source
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
Flexible ultrasonic array for breast-cancer diagnosis based on a self-shape-estimation algorithm.
Ultrasonics, 2020 Breast cancer is a very common malignant tumour that typically occurs in women aged 35-70 years (accounting for 85% of patients). Recently, it has been appearing in younger women as well.
Junjie Chang +5 more
semanticscholar +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
Improving elevation resolution in phased-array inspections for NDT [PDF]
, 2019 The Phased Array Ultrasonic Technique (PAUT) offers great advantages over the conventional ultrasound technique (UT), particularly because of beam focusing, beam steering and electronic scanning capabilities.
Brizuela, Jose David +4 more
core +1 more source