Results 61 to 70 of about 63,195 (336)
Ultrasonic sensing using Yb3+/Er3+-codoped distributed feedback fibre grating lasers. [PDF]
, 2005 Yb3+/Er3+-codoped distributed feedback (YbEr-DFB) fibre grating lasers have been investigated for the detection of ultrasonic Lamb waves generated in an aluminum plate. Two sensor configurations have been investigated. A path length imbalanced readout
Ye, Chen-Chun, Tatam, Ralph P.
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Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
A modular FPGA-based ultrasonic array system for applications including non-destructive testing [PDF]
, 2008 This paper reports work aimed at the development of an ultrasonic imaging system comprising modular, reprogrammable building blocks, or tiles, which can be customised for multiple applications, including and within non-destructive testing (NDT), by the ...
Afroukh, F. +6 more
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A Combined Signal Display Method for Hollow Axle Automated Ultrasonic Test System
Kongzhi Yu Xinxi Jishu, 2018 Hollow axle automated ultrasonic test system uses high speed spinning probes inside the hole of the axle. This generates massive data containing echo wave and position information.
TANG Lixin
doaj
High-precision robust broadband ultrasonic location and orientation estimation
, 2009 This paper presents an indoor broadband ultrasonic system for estimation of a mobile device’s 3-D location and three-axis orientation using beacons. It presents the first implementation and characterization of a real frequency hopping spread spectrum ...
J. R. Gonzalez +3 more
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BMC Oral Health, 2022 The aim of this work was to analyze and compare the removal capability, conical internal hex implant-abutment connection damage and thermal effect using ultrasonic and drilling techniques for the extraction of fractured abutment screws.
María Bufalá Pérez +6 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin +2 more
wiley +1 more source
Defect Detection in Wood Using Air-Coupled Ultrasonic Technique Based on Golay Code
SensorsAir-coupled ultrasound overcomes the limitations of traditional contact-based ultrasonic methods that rely on liquid couplants. Still, it faces challenges due to the acoustic impedance mismatch between air and wood, causing significant signal scattering ...
Jun Wang, Tianyou Xu, Hongyan Zou
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Applications of Flexible Ultrasonic Transducer Array for Defect Detection at 150 °C
Sensors, 2013 In this study, the feasibility of using a one dimensional 16-element flexible ultrasonic transducer (FUT) array for nondestructive testing at 150 °C is demonstrated.
Jiunn-Woei Liaw +5 more
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Non-destructive testing of metallic specimens using "C" scan ultrasonic procedures
, 2020 Ultrasonic technique using an automated C-scan over the years has established an important role as the primary inspection method for materials due to the advantages that it brought. The principles of ultrasonic inspection, different types of defects that
Ong, Jeremy Zee Boon
core