Study of Residual Stress Using Phased Array Ultrasonics in Ti-6AL-4V Wire-Arc Additively Manufactured Components [PDF]
SensorsThis paper presents a study on residual stress measurement in wire-arc additively manufactured (WAAM) titanium samples using the non-destructive method of phased array ultrasonics. The contour method (CM) was used for the verification of the phased array
Joseph Walker +2 more
exaly +7 more sources
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
Analysis of Flaw Detection Sensitivity of Phased Array Ultrasonics in Austenitic Steel Welds According to Inspection Conditions [PDF]
Sensors, 2021 The anisotropy and inhomogeneity exhibited by austenitic steel in welds poses a challenge to nondestructive testing employing ultrasonic waves, which is predominantly utilized for the inspection of welds in power plants.
YoungLae Kim, Sungjong Cho
exaly +4 more sources
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
openaire +3 more sources
Phased electromagnetic acoustic transducer array for Rayleigh wave surface defect detection [PDF]
, 2020 A phased electromagnetic acoustic transducer (EMAT) array system has been developed for detection and characterisation of surface breaking defects. An array of four linear coils which are individually controlled are used to generate a Rayleigh wave.
Dixon, S. +3 more
core +1 more source
Ultrasound array transmitter architecture with high timing resolution using embedded phase-locked loops [PDF]
, 2012 Coarse time quantization of delay profiles within ultrasound array systems can produce undesirable sidelobes in the radiated beam profile. The severity of these sidelobes is dependent upon the magnitude of phase quantization error - the deviation from ...
Cowell, DMJ +4 more
core +1 more source
The high frequency flexural ultrasonic transducer for transmitting and receiving ultrasound in air [PDF]
, 2020 Flexural ultrasonic transducers are robust and low cost sensors that are typically used in industry for distance ranging, proximity sensing and flow measurement.
Dixon, Steve M. +2 more
core +3 more sources
Total focussing method for volumetric imaging in immersion non destructive evaluation [PDF]
, 2007 This paper describes the use of a 550 (25x22) element 2MHz 2D piezoelectric composite array in immersion mode to image an aluminum test block containing a collection of artificial defects.
Drinkwater, B. +6 more
core +1 more source
Multiple wavemode scanning for near and far-side defect characterisation [PDF]
, 2020 The combination of ultrasonic inspections using different wavemodes can give more information than is available with single mode inspection. In this work, the response of shear and Rayleigh waves to surface-breaking defects propagating on the near-side ...
Edwards, R. S. (Rachel S.), Xiang, L.
core +1 more source
Ultrasonic Well Integrity Logging Using Phased Array Technology
Volume 9: Offshore Geotechnics; Petroleum Technology, 2023 Abstract Ultrasonic well integrity logging is an important and common procedure for well completion and plug-and-abandonment operations. Typical logging tools employ single-element ultrasound transducers. In medical ultrasound imaging, however, more flexible phased arrays are the standard.
Johansen, Tonni Franke +4 more
openaire +2 more sources