Results 1 to 10 of about 83,231 (313)
Sensors, 2023 In this study, we introduce a physical model of a three-dimensional (3D) guided wave sensor called 3D-CMUT, which is based on capacitive micro-machined ultrasonic transducers (CMUTs).
Sai Zhang +5 more
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AIP Advances, 2023 In this paper, a theoretical model of underwater acoustic wave propagation, based on the transfer matrix method, is employed to calculate acoustic wave transmission through a 1D solid–fluid superlattice (SFSL) with multiple solid constituents.
Sai Zhang, Huizi He, Baiqiang Xu, Wei Lu
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Research progress in ultrasonic testing for friction stir welding of aluminum alloy
Cailiao gongcheng, 2022 The defects in friction stir welding (FSW) of aluminum alloy, e.g., tunnel defect, lack of penetration (LOP) and kissing bond, are with complex shape and narrow gap by inappropriate welding parameters.
JIN Shijie, TIAN Xin, LIN Li
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Ultrasonic fatigue testing of concrete
Ultrasonics, 2021 Cyclic compression fatigue properties of concrete are studied with the ultrasonic fatigue testing method with cycling frequency 19 kHz and are compared to servo-hydraulic tests performed at 60 Hz. Ultrasonic testing was found applicable for rapid generation of very high cycle fatigue (VHCF) data of concrete.
Fitzka, Michael +6 more
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Ultrasonic testing for mechanical engineering domain: present and future perspective [PDF]
International Journal of Research in Industrial Engineering, 2018 Ultrasonic testing uses high frequency sound waves of a range between 0.5 to 15 MHz to conduct testing. The basic principle and applications of ultrasonic testing techniques is enormous use under the domain of mechanical engineering applications ...
A. Sharma, A. Sinha
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Applied Sciences, 2023 Non-destructive ultrasonic testing can be used to assess the properties and condition of real machine elements during their operation, with limited (one-sided) access to these elements.
Jakub Kowalczyk +4 more
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ULTRASONIC METHOD FOR TESTING OF POWER TRANSFORMERS
Journal of Energy : Energija, 2022 Ultrasonic method of detecting PD is based on the fact that the electrical energy of the PD transforms in a mechanical energy, an ultrasonic acoustic wave that spreads through the transformer to the tank wall. From time difference of wave detection on different sensors, a possible location of the source can be estimated.
Brezak, Danijel +1 more
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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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Irradiation testing of ultrasonic transducers [PDF]
2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA), 2013 Ultrasonic technologies offer the potential for high accuracy and resolution in-pile measurement of numerous parameters, including geometry changes, temperature, crack initiation and growth, gas pressure and composition, and microstructural changes. Many Department of Energy-Office of Nuclear Energy (DOE-NE) programs are exploring the use of ultrasonic
J. Daw +9 more
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Extraction of Flaw Signals from the Mixed 1-D Signals by Denoising Autoencoder
Applied Sciences, 2023 Ultrasonic testing (UT) is one of the most popular non-destructive evaluation (NDE) techniques used in many industries to evaluate structural integrity.
Seung-Eun Lee +3 more
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