Results 21 to 30 of about 202,142 (326)
Numerical simulation of phased array ultrasonic testing for fillet weld defects of type-B sleeve
You-qi chuyun, 2022 Type-B sleeve repair is one of the main permanent repair methods for long-distance oil and gas pipelines at present. However, fillet weld defects are often produced during the operation, which need to be detected and evaluated by phased array ultrasonic ...
Hongbo ZHANG +5 more
doaj +1 more source
Applied Sciences, 2023 Liquefied Natural Gas (LNG) is one of the major renewable energy sources and is stored and carried in a storage tank that is designed following international standards.
Seung-Eun Lee +4 more
semanticscholar +1 more source
Anisotropy Corrected FMC/TFM Based Phased Array Ultrasonic Imaging in an Austenitic Buttering Layer
Applied Sciences, 2023 For the narrow gap dissimilar weld between a ferritic steel and a nickel base superalloy, a nickel base alloy buttering layer is deposited on the ferritic steel side as an intermediate layer. The bonding between the buttering layer and the ferritic steel
S. Ponseenivasan +2 more
semanticscholar +1 more source
Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review
Applied Sciences, 2022 An ultrasonic phased array consists of multiple ultrasonic probes arranged in a certain regular order, and the delay time of the excitation signal sent to each array element is controlled electronically.
Qian Xu, Haitao Wang
doaj +1 more source
3D cone-beam breast ultrasonic tomography imaging for capacitive micromachined ultrasonic transducer cylindrical array [PDF]
JASA Express Letters, 2021 In this paper, a 3D cone-beam ultrasonic transmission tomography method for capacitive micromachined ultrasonic transducer (CMUT) cylindrical phased array was proposed.
Yu Pei +6 more
doaj +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
Energies, 2022 The defects in the welds of energy pipelines have significantly influenced their safe operation. The inefficient and inaccurate detection of the defects may give rise to catastrophic accidents.
Haibin Wang +6 more
doaj +1 more source
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
Journal of nondestructive evaluation, 2022 Probability of detection (POD) as a metric for quantifying the capability of inspection procedures in nondestructive evaluation (NDE), has been applied and evolved in industries since 1970s. Progress had been noted when certain statistical functions were
Xiangyu Lei, H. Wirdelius, A. Rosell
semanticscholar +1 more source
Contactless Fluid Manipulation in Air: Droplet Coalescence and Active Mixing by Acoustic Levitation [PDF]
, 2018 Acoustic manipulation by an ultrasonic phased array provides an entirely new approach to processes such as coalescence, mixing, separation, and evaporation occurring in the generation of new materials, physical property measurement, the biomedical ...
Abe Yutaka +3 more
core +2 more sources