Results 21 to 30 of about 1,828,003 (344)
BMC Medical Genomics, 2021 Background Some ultrasonic soft markers can be found during ultrasound examination. However, the etiology of the fetuses with ultrasonic soft markers is still unknown.
Meiying Cai +6 more
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A dynamic coal quantity detection system for conveyor belt based on ultrasonic array
Gong-kuang zidonghua, 2023 Dynamic coal quantity detection for conveyor belt is the foundation and key to achieving energy consumption optimization measures for multi-stage belt conveyors such as coal flow starting and automatic speed regulation.
HAO Hongtao, WANG Kai, DING Wenjie
doaj +1 more source
Pulse Peak Delay-Total Focusing Method for Ultrasonic Tomography on Concrete Structure
Applied Sciences, 2021 An ultrasonic array device like the A1040 MIRA is used to non-destructively visualize the inside of concrete structures. A data set acquired by the ultrasonic array device is so unfocused that an image reconstruction algorithm is required to transform ...
Hungjoo Kwon +2 more
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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
Sensors, 2018 In ultrasonic array imaging, 3D ultrasonic wavefields are normally recorded by an ultrasonic piezo array transducer. Its performance is limited by the configuration and size of the array transducer.
Xing Wang +4 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
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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
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
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.
D.R.S. Cumming +9 more
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Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging application : a feasibility study [PDF]
, 2014 Two-dimensional ultrasonic phased arrays are becoming increasingly popular in nondestructive evaluation (NDE). Sparse array element configurations are required to fully exploit the potential benefits of 2-D phased arrays. This paper applies the conformal
Ramadas, Sivaram Nishal +4 more
core +1 more source