Results 11 to 20 of about 2,753 (259)

Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review

open access: yesApplied 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]

open access: yesJASA 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

Parameter optimization method for delamination defects detection of composite laminate using phased array ultrasonic

open access: yesCailiao 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

Automated Classification of Pipeline Defects from Ultrasonic Phased Array Total Focusing Method Imaging

open access: yesEnergies, 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

Phased array ultrasonic testing of micro-flaws in additive manufactured titanium block

open access: yesMaterials 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
doaj   +1 more source

INVESTIGATION INTO THE PRODUCTION FLAWS IN THIN SOLID CARBON LAMINATES BY USING THE ULTRASONIC PHASED ARRAY METHOD [PDF]

open access: yesScientific 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
doaj   +1 more source

Numerical Investigation of Excitation of Various Lamb Waves Modes in Thin Plastic Films

open access: yesApplied 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
doaj   +1 more source

Delamination defects testing and evaluation of composite laminates using phased array ultrasonic technique

open access: yesCailiao 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
doaj   +1 more source

Research on factors affecting ultrasonic phased array detection imaging quality for curved component

open access: yesAIP 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
doaj   +1 more source

Haptic Interface Device Using Cable Tension Based on Ultrasonic Phased Array

open access: yesIEEE 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
doaj   +1 more source

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