Results 11 to 20 of about 16,283 (340)
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
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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
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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
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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
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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
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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
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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
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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
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INVESTIGATION INTO THE PRODUCTION FLAWS IN THIN SOLID CARBON LAMINATES BY USING THE ULTRASONIC PHASED ARRAY METHOD [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2018 Composites are used in a wide variety of markets, including the aerospace, architecture, automotive and military sectors. Along with the increased use of composites, multiple non-destructive testing (NDT) methods have been further developed specifically ...
Jan PIL’A +2 more
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Numerical Investigation of Excitation of Various Lamb Waves Modes in Thin Plastic Films
Applied Sciences, 2022 Ultrasonic-guided waves are widely used for the non-destructive testing and material characterization of plates and thin films. In the case of thin plastic polyvinyl chloride (PVC), films up to 3.2 MHz with only two Lamb wave modes, antisymmetrical A0 ...
Rymantas Jonas Kazys +2 more
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