Results 11 to 20 of about 2,880 (191)
Nonlinear Ultrasonic Phased Array Imaging [PDF]
Physical Review Letters, 2014 This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the energy of the diffuse field produced through the focusing of an ultrasonic array by delayed parallel element transmission with that produced by postprocessing of sequential transmission data, acoustic nonlinearity local to the focal point is measured. Spatially
Potter, J. N. +2 more
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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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Phased array ultrasonic testing of micro-flaws in additive manufactured titanium block
Materials Research Express, 2020 While titanium components manufactured by additive manufacturing have been widely used in direct molding of complex components, their performance is strongly affected by existing internal flaws generated in the unique manufacturing process.
Xiaohui Wang +6 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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All-optically controlled phased-array for ultrasonics. [PDF]
Nat CommunAbstract The ability to dynamically shape ultrasound fields is critical for emerging applications in therapeutic ultrasound, particle manipulation and tissue engineering. While existing phased arrays provide beam steering for imaging, these newer applications require higher intensities.
Goyal R +4 more
europepmc +5 more sources
Haptic Interface Device Using Cable Tension Based on Ultrasonic Phased Array
IEEE Access, 2020 This paper presents a new haptics interface device based on cable-driven parallel manipulators and an ultrasonic phased array. Unlike previous studies, our method combines force and tactile feedback at the same time.
Liqiang Fan, Aiguo Song, Haochen Zhang
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Research on factors affecting ultrasonic phased array detection imaging quality for curved component
AIP Advances, 2022 An in-depth analysis on the beam directivity of ultrasonic phased arrays has been made to solve the problems of low image quality and identification difficulties caused by a suboptimal configuration of array elements.
Zhe Wang, Chao Zhang, Xiahui Li
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Cailiao gongcheng, 2021 Composite materials are prone to delamination defects during the preparation process. For the non-destructive testing and evaluation of carbon fiber reinforced polymer (CFRP) delamination defects, a standard specimen with embedded delamination defects ...
CAO Hong-yi +8 more
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International Journal of Distributed Sensor Networks, 2013 Near-field ultrasonic phased array theory is researched and utilized in the carbon-fiber wing box to identify the damage in the structure. Near-field ultrasonic phased array based structural health monitoring is researched to overcome the limitation of ...
Yajie Sun +3 more
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