Improvement of focused ultrasonic beam generated by laser phased array: Theoretical analysis

2019 ◽  
Vol 125 (3) ◽  
pp. 033104 ◽  
Author(s):  
Ying Chang ◽  
Dexing Yang ◽  
Yuning Guo
Keyword(s):  
Theoretical Analysis ◽  
Phased Array ◽  
Ultrasonic Beam

Two-dimensional analytic modeling of acoustic diffraction for ultrasonic beam steering by phased array transducers

Ultrasonics ◽  
2017 ◽  
Vol 76 ◽  
pp. 35-43 ◽  
Author(s):  
Tiansi Wang ◽  
Chong Zhang ◽  
Aleksandar Aleksov ◽  
Islam Salama ◽  
Aravinda Kar
Keyword(s):  
Phased Array ◽  
Beam Steering ◽  
Two Dimensional ◽  
Ultrasonic Beam ◽  
Analytic Modeling ◽  
Acoustic Diffraction

scholarly journals Caracterización dimensional con ultrasonido por arreglo de fases de discontinuidades inducidas en acero ASTM A36 mediante procesos de electroerosión y soldadura SMAW

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
Carlos Andrés Galán-Pinilla ◽  
Luz Amparo Quintero-Ortiz ◽  
Julián Orlando Herrera-Ortiz
Keyword(s):  
Ultrasonic Testing ◽  
Phased Array ◽  
Ultrasonic Beam ◽  
Butt Weld ◽  
Second Stage ◽  
A36 Steel ◽  
Ultrasound Inspection ◽  
Two Stages ◽  
Geometric Morphology ◽  
Phase Arrangement

This research evaluates the effect of the variables of Phased Array Ultrasonic Testing(PAUT) on the sectoral angular beam scans “S-Scan” and the geometric morphology of planar discontinuities such as the inclination forthe ultrasonic beam and the shape of the extremity on accuracy in measurements. The study was carried out in two stages. Duringthe first stage, eight ASTM A36 steel samples with machined notches by penetration from EDM and a welded sample with lack of penetration in a butt weld were designed and produced. In the second stage, it wasmeasured the size of the discontinuities using ultrasound inspection and different configurations of the phase arrangement. The effect of each variable and inspection setting with errors between 0.2 % and 120 % were determined by statistical analysis.

Theoretical analysis for the reflection of a focused ultrasonic beam from a fluid–solid interface

1993 ◽  
Vol 93 (3) ◽  
pp. 1407-1416 ◽  
Author(s):  
Theodore E. Matikas ◽  
Martine Rousseau ◽  
Philippe Gatignol
Keyword(s):  
Theoretical Analysis ◽  
Ultrasonic Beam ◽  
Solid Interface
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