Ultrasonic imaging
Ultrasonic Imaging of Concrete by Synthetic Aperture Focusing Technique Based on Hilbert Huang Transform of Time Domain Data
... the ultrasonic waveforms obtained from a concrete specimen with an embedded steel ...through ultrasonic imaging was greatly improved by the combination of HHT and ...
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Estimation of Inclusion in Forged Steel through Ultrasonic Imaging Technique
... In ultrasonic imaging technique the forged sample is immersed and placed in tank filled with water, which acts as couplant between probe and ...the ultrasonic signal comes back from the surface of ...
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Ultrasonic Imaging of Concrete for Rebar Detection.
... in ultrasonic imaging techniques has been achieved in the last couple of ...for ultrasonic testing. The widely used concrete imaging techniques are traditional B-scan imaging, Synthetic ...
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Novel lactoferrin-conjugated amphiphilic poly(aminoethyl ethylene phosphate)/poly(L-lactide) copolymer nanobubbles for tumor-targeting ultrasonic imaging
... innovative ultrasonic imaging contrast agent, may have appropriate mechanical properties, good stability, appropriate hydrophilic/lipophilic properties, and moderate degradation ...
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High Selectivity Ultrasonic Imaging of Closed Cracks Using Global Preheating and Local Cooling
... High-selectivity ultrasonic imaging of closed crack is an important subject for avoiding not only underestimation but also misidenti fi cation of closed ...
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Laser induced phased arrays for remote ultrasonic imaging of additive manufactured components
... Laser Induced Phased Arrays (LIPAs) use laser ultrasonics to generate and detect ultrasound, synthesising an ultrasonic phased array in post processing. Full Matrix Capture (FMC) is done by scanning the laser ...
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Solid state ultrasonic imaging
... A serial output of the voltage, and hence the acoustic pressure across the transducer surface, is obtained and this, after amplification, may be used to reproduce the object image on a d[r] ...
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Ultrasonic Imaging of Static Objects Through a Scattering Layer Using the Harmonic Phase Conjugation Approach
... The ultrasonic image processing was applied in two different ways: the first one was a conventional method which detected the reflected ultrasonic waves, and the other one was detecting the phase conjugate ...
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Non Destructive Evaluation of Weld Structure Using Ultrasonic Imaging Technique
... for ultrasonic measurement. Two types of ultrasonic measuring devices, FLEXSCAN SYSTEM (INSIGHT KK) and robot arm type ultrasonic measuring system (developed by NDIC), were ...
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Speckle processing for ultrasonic imaging
... ultrasonic waves incurred during propagation through mammalian soft tissue causes a loss in quality of ultrasonic images of such tissue when formed by conventional means... Part II of th[r] ...
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Beamforming and hardware design for a multichannel front-end integrated circuit for real-time 3D catheter-based ultrasonic imaging.
... ultrasound imaging system based on a 16×16-element capacitive micromachined ultrasonic transducer (CMUT) ...(CSA) imaging). Compared with classic phased array imaging (CPA), where multiple ...
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Ultrasonic imaging of electrofusion welded polyethylene pipes employed in utilities industry
... Using the B-Scan imaging technique, it was possible to detect the majority of defects which can be introduced into electrofusion welds. Detection of particulate contaminants can be challenging in some scenarios ...
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Data Acquisition System For Fingerprint Ultrasonic Imaging Device
... OCT (Optical coherence tomography) is novel imaging technology that can to obtain 3D images of fingerprint including in-depth layers. The OCT was presented in [13]; it is able to provide high resolution cross ...
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Three-dimensional acquisition and display system for ultrasonic imaging
... Variation of a conventional modulated chirp signal Block diagram of data Fig 7b: lOx Plot Fig 7c: Plot Fig 7d: Results Fig 8a-8b: Three dimensional Image Fig 8c-8d: Two dimensional Fig 8[r] ...
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Ultrasonic Imaging and the Long Wavelength Phase
... LONG WAVELENGTH PHASE The strategy in this section is to: 1 expand the wave equation in powers of the frequency in the long wavelength limit; 2 show that the expanded displacement transf[r] ...
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Laser Generation Based Imaging of Ultrasonic Wave Propagation on Welded Steel Plates and Its Application to Defect Detection
... laser ultrasonic imaging ...needed; ultrasonic generation by thermal expansion alone was sufficient for imaging the wave ...the ultrasonic signal that was generated at each grid ...
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Ultrasonic phased array inspection of wire + arc additive manufacture samples using conventional and total focusing method imaging approaches
... In this study, three aluminium samples produced by wire + arc additive manufacture (WAAM) are inspected using ultrasonic phased array technology. Artificial defects are machined using a centre drill, ø3 mm, and ...
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Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging application : a feasibility study
... Abstract— 2-Dimensional ultrasonic phased arrays are becoming increasingly popular in non-destructive evaluation (NDE). Sparse array element configurations are required to fully exploit the potential benefits of ...
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Plane Wave Imaging for ultrasonic non-destructive testing: Generalization to multimodal imaging
... Ultrasonic transducer arrays are more and more used for industrial Non-Destructive Testing (NDT). Compared to single element transducers, they are much more versatile as they allow different inspection modes ...
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Elastography: ultrasonic estimation and imaging of the elastic properties of tissues
... imaging system and signal processing algorithms modulus contrasts the improvement in the CNRe is due described by the SF can be combined with the elas- to the large difference in the mean strains. Note from tic ...
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