The Experts below are selected from a list of 4017 Experts worldwide ranked by ideXlab platform
Alexsander A Karabutov - One of the best experts on this subject based on the ideXlab platform.
-
immersion laser induced ultrasound Imaging of Solids with complex macroscopic geometry of surface
Journal of Physics: Conference Series, 2019Co-Authors: V A Simonova, Alexsander A Karabutov, E Cherepetskaya, Vasily Zarubin, A S BychkovAbstract:In this paper a real-time experimental system and algorithms for immersion two-dimensional laser ultrasonic Imaging of Solids with complex geometry of surface are presented. Wideband probe ultrasonic pulse is generated photoacoustically in an opaque plate, which absorbs pulsed laser radiation. The back-scattered acoustic field is recorded by a multi-element piezoelectric array. The signals are used to reconstruct refraction-corrected ultrasonic images, which are post-processed to determine positions of the external and internal boundaries of the object. The numerical simulations are carried out to verify the developed algorithms. The proposed approach allowed measuring the positions of the boundaries of the polymethyl methacrylate (PMMA) sample with accuracy of ~0.1 mm in the direction of the probe beam propagation, and ~0.2-0.3 mm in the perpendicular direction.
-
a refraction corrected tomographic algorithm for immersion laser ultrasonic Imaging of Solids with piecewise linear surface profile
Applied Physics Letters, 2018Co-Authors: Vasily Zarubi, A S Ychkov, V A Simonova, V S Zhigarkov, Alexsander A Karabutov, E CherepetskayaAbstract:In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.
E Cherepetskaya - One of the best experts on this subject based on the ideXlab platform.
-
immersion laser induced ultrasound Imaging of Solids with complex macroscopic geometry of surface
Journal of Physics: Conference Series, 2019Co-Authors: V A Simonova, Alexsander A Karabutov, E Cherepetskaya, Vasily Zarubin, A S BychkovAbstract:In this paper a real-time experimental system and algorithms for immersion two-dimensional laser ultrasonic Imaging of Solids with complex geometry of surface are presented. Wideband probe ultrasonic pulse is generated photoacoustically in an opaque plate, which absorbs pulsed laser radiation. The back-scattered acoustic field is recorded by a multi-element piezoelectric array. The signals are used to reconstruct refraction-corrected ultrasonic images, which are post-processed to determine positions of the external and internal boundaries of the object. The numerical simulations are carried out to verify the developed algorithms. The proposed approach allowed measuring the positions of the boundaries of the polymethyl methacrylate (PMMA) sample with accuracy of ~0.1 mm in the direction of the probe beam propagation, and ~0.2-0.3 mm in the perpendicular direction.
-
a refraction corrected tomographic algorithm for immersion laser ultrasonic Imaging of Solids with piecewise linear surface profile
Applied Physics Letters, 2018Co-Authors: Vasily Zarubi, A S Ychkov, V A Simonova, V S Zhigarkov, Alexsander A Karabutov, E CherepetskayaAbstract:In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.
Vasily Zarubi - One of the best experts on this subject based on the ideXlab platform.
-
a refraction corrected tomographic algorithm for immersion laser ultrasonic Imaging of Solids with piecewise linear surface profile
Applied Physics Letters, 2018Co-Authors: Vasily Zarubi, A S Ychkov, V A Simonova, V S Zhigarkov, Alexsander A Karabutov, E CherepetskayaAbstract:In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.
A S Ychkov - One of the best experts on this subject based on the ideXlab platform.
-
a refraction corrected tomographic algorithm for immersion laser ultrasonic Imaging of Solids with piecewise linear surface profile
Applied Physics Letters, 2018Co-Authors: Vasily Zarubi, A S Ychkov, V A Simonova, V S Zhigarkov, Alexsander A Karabutov, E CherepetskayaAbstract:In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.
V A Simonova - One of the best experts on this subject based on the ideXlab platform.
-
immersion laser induced ultrasound Imaging of Solids with complex macroscopic geometry of surface
Journal of Physics: Conference Series, 2019Co-Authors: V A Simonova, Alexsander A Karabutov, E Cherepetskaya, Vasily Zarubin, A S BychkovAbstract:In this paper a real-time experimental system and algorithms for immersion two-dimensional laser ultrasonic Imaging of Solids with complex geometry of surface are presented. Wideband probe ultrasonic pulse is generated photoacoustically in an opaque plate, which absorbs pulsed laser radiation. The back-scattered acoustic field is recorded by a multi-element piezoelectric array. The signals are used to reconstruct refraction-corrected ultrasonic images, which are post-processed to determine positions of the external and internal boundaries of the object. The numerical simulations are carried out to verify the developed algorithms. The proposed approach allowed measuring the positions of the boundaries of the polymethyl methacrylate (PMMA) sample with accuracy of ~0.1 mm in the direction of the probe beam propagation, and ~0.2-0.3 mm in the perpendicular direction.
-
a refraction corrected tomographic algorithm for immersion laser ultrasonic Imaging of Solids with piecewise linear surface profile
Applied Physics Letters, 2018Co-Authors: Vasily Zarubi, A S Ychkov, V A Simonova, V S Zhigarkov, Alexsander A Karabutov, E CherepetskayaAbstract:In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.In this paper, a technique for reflection mode immersion 2D laser-ultrasound tomography of solid objects with piecewise linear 2D surface profiles is presented. Pulsed laser radiation was used for generation of short ultrasonic probe pulses, providing high spatial resolution. A piezofilm sensor array was used for detection of the waves reflected by the surface and internal inhomogeneities of the object. The original ultrasonic image reconstruction algorithm accounting for refraction of acoustic waves at the liquid-solid interface provided longitudinal resolution better than 100 μm in the polymethyl methacrylate sample object.