Results 11 to 20 of about 662 (149)
CIVA Confirmation of Frequency Dependence of TOFD Lateral Wave
e-Journal of Nondestructive TestingPulse-duration (ring-time) of the TOFD (Time of Flight Diffraction) lateral wave has been assumed to be based on the nominal frequency of the probe. With the improved damping used for TOFD applications, these probes now have had their ring-time reduced ...
Edward Ginzel, Edward Ginzel
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Geophysical Research LettersSurface and near‐surface wind speeds, critical factors for dust emission, are often overestimated in desert regions by models, leading to exaggerated predictions of sandstorm extent and dust concentration. This study implements a new turbulent orographic
Huoqing Li +6 more
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CIVA as an Aid to Understanding TOFD Dead Zones
e-Journal of Nondestructive TestingTOFD (Time of Flight Diffraction) has been a popular ultrasonic testing method for many years. It has associated with it, limitations associated with the pulse duration.
Edward Ginzel
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Chinese Journal of Mechanical Engineering, 2022 The shallow subsurface defects are difficult to be identified and quantified by ultrasonic time-of-flight diffraction (TOFD) due to the low resolution induced by pulse width and beam spreading.
Xu Sun, Li Lin, Shijie Jin
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Revista EIA, 2012 This paper shows how the symbiosis of two disciplines, software engineering and ultrasonic techniques, made possible the development of a nondestructive testing system for TOFD imaging, and it also allowed to make the application of commercial ...
Darío Segura, Alejandro Rodríguez
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PA+TOFD testing by automated UT systems – implementation and applications — [PDF]
, 2022 Celem referatu jest prezentacja prac wdrożeniowych automatycznych systemów ultradźwiękowych PA+TOFD, dedykowanych do badania doczołowych złączy spawanych o zakresie grubości od 6 do 40 mm na obiektach ze stali węglowych - płaskich oraz na rurociągach w ...
Śliwowski, Marek
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Système de contrôle novateur basé sur la technique UT TOFD
e-Journal of Nondestructive Testing, 2023 Du fait de ses nombreux avantages en termes de facilité de mise en oeuvre, de vitesse d’examen, de performances de détection et de caractérisation des indications, la technique de contrôle TOFD (Time of Flight Diffraction) est de plus en plus utilisée ...
Michel Cence, Weina Ke, Celia Chevallier
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Non-contacted Permanent Magnetic Absorbed Wall-climbing Robot for Ultrasonic Weld Inspection of Spherical Tank [PDF]
MATEC Web of Conferences, 2019 A novel wall-climbing robot for the onsite weld inspecting of spherical tank with Time of Flight Diffraction (TOFD) method has been developed, in order to liberate operators from dangerous and heavy working environment.
Ding Yulin, Sun Zhenguo, Chen Qiang
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Multi-Mode Total Focusing Method (MTFM) to Detect High-Temperature Hydrogen Attack (HTHA) – A Review
Journal of Materials Exploration and Findings, 2023 High temperature hydrogen attack (HTHA) is a commonly observed harm component in carbon steels exposed to high temperature and pressure in a hydrogen-rich environment. Hydrogen together with carbon responds to produce methane.
Anjar Oktikawati +2 more
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Nuclear Engineering and Technology, 2017 During the fabrication process of reactor vessel head penetration (RVHP), the grain size of the tube material can be changed by hot or cold work and the inner side of the tube can also be shrunk due to welding outside of the tube. Several nonregular time-
Kyungcho Kim +5 more
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