Results 1 to 10 of about 11,411 (229)
Clusters of Shaped Ultrasonic Transducers for Lamb Waves’ DoA Estimation [PDF]
Applied Sciences, 2020 The direction of arrival (DoA) estimation of Lamb waves is a fundamental task to locate acoustic events, such as those caused by impacts in plates or shells. To perform this task, a novel cluster of piezoelectric sensors is presented in this work.
Marco Dibiase, Luca De Marchi
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Application of non-contact ultrasonic method in air to study fiber-cement corrugated boards [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2021 The fiber-cement and cellulose boards are materials commonly used in architectural engineering for exterior and interior applications such as building facades or as wall and roof covering materials.
Radosław Drelich +2 more
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SETTING OF THE ANGLE OF INCIDENCE FOR GENERATING LAMB WAVES BY NON-CONTACT METHOD [PDF]
Journal of Engineering Science (Chişinău), 2021 The article examined the problem of the experimental setting of incidence angles for the generation of Lamb waves in plate-type parts by the non-contact ultrasonic control method.
BUGA, Alexandru
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Impact of Wedge Parameters on Ultrasonic Lamb Wave Liquid-Level Sensor
Sensors, 2022 The ultrasonic Lamb wave detection principle can realize the noncontact measurement of liquid level in closed containers. When designing an ultrasonic Lamb wave sensor, it is vital to thoroughly study and select the optimal wedge size at the front of the
Weizhao Xue +4 more
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Sensors, 2022 This article proposes an electromagnetic acoustic transducer (EMAT) for selectively improving the purity and amplitude of ultrasonic Lamb waves in non-ferromagnetic plates. The developed EMAT consists of a racetrack coil and a group of periodic permanent
Xinfeng Guo +3 more
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The Suitability of Using 3D PLA Printed Wedges for Ultrasonic Wave Propagation
IEEE Access, 2020 This work studies the suitability of using 3D printed PLA wedges made through additive manufacturing to propagate Lamb waves in plate structures instead of using rather more expensive commercial wedges.
Antonio J. Balvantin +5 more
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Detecting Lamb waves with broad-band acousto-ultrasonic signals in composite structures [PDF]
, 1992 Lamb waves can be produced and detected in ceramic matrix composites (CMC) and metal matrix composites (MMC) plates using the acousto-ultrasonic configuration employing broadband transducers.
Kautz, Harold E.
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Sensors, 2019 Ultrasonic testing is an important means to detect defacing defects, such as scratches and cracks, but when the size of these defects is smaller than the wavelength of ultrasonic waves, it is difficult to detect them using traditional methods like the ...
Peng Zhou, Chu Zhang, Ke Xu, Weiping Ren
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Lamb wave near field enhancements for surface breaking defects in plates [PDF]
, 2012 Near field surface wave ultrasonic enhancements have previously been used to detect surface breaking defects in thick samples using Rayleigh waves. Here, we present analogous surface wave enhancements for Lamb waves propagating in plates.
Clough, A. R. +1 more
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Numerical Simulation of Nonlinear Lamb Waves Used in a Thin Plate for Detecting Buried Micro-Cracks
Sensors, 2014 Compared with conventional linear ultrasonic inspection methods, which are sensitive only to severe defects, nonlinear ultrasonic inspection methods are better for revealing micro-cracks in thin plates.
Xiang Wan +3 more
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