Results 61 to 70 of about 61,227 (197)
New Proposal for Inverse Algorithm Enhancing Noise Robust Eddy-Current Non-Destructive Evaluation
Sensors, 2020 Solution of inverse problem in eddy-current non-destructive evaluation of material defects is concerned in this study. A new inverse algorithm incorporating three methods is proposed. The wavelet transform of sensed eddy-current responses complemented by
Milan Smetana +3 more
doaj +1 more source
Расчетная модель ортогонального вихретокового преобразователя [PDF]
, 2010 Розроблено розрахункову модель для оцінки взаємодії вихорострумового перетворювача з об’єктом, який має поверхневу тріщину. Наведено співвідношення для розрахунку залежностей сигналів вихорострумового перетворювача від взаємного розташування його обмоток
Сучков, Григорий Михайлович +1 more
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Technique for temperature compensation of eddy-current proximity probes [PDF]
Eddy-current proximity probes are used in turbomachinery evaluation testing and operation to measure distances, primarily vibration, deflection, or displacment of shafts, bearings and seals. Measurements of steady-state conditions made with standard eddy-
Masters, Robert M.
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Rotating flux-focusing eddy current probe for flaw detection [PDF]
, 1997 A flux-focusing electromagnetic sensor which uses a ferromagnetic flux-focusing lens simplifies inspections and increases detectability of fatigue cracks about circular fasteners and other circular inhomogeneities in high conductivity material.
Fulton, James P. +4 more
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Miniature mobile sensor platforms for condition monitoring of structures [PDF]
, 2009 In this paper, a wireless, multisensor inspection system for nondestructive evaluation (NDE) of materials is described. The sensor configuration enables two inspection modes-magnetic (flux leakage and eddy current) and noncontact ultrasound.
Chan, C.C. +6 more
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Measurement of Hydraulic Fracture Aperture by Electromagnetic Induction
SensorsWe present a new method for accurately measuring the aperture of a fluid-driven fracture. This method uses an eddy current probe located within a completion tool specifically designed to obtain the fracture aperture in the wellbore at the location where ...
Mohsen Talebkeikhah +2 more
doaj +1 more source
Apparatus and method for inspecting a bearing ball [PDF]
, 1985 A method and apparatus for inspecting the surface of a ball bearing is disclosed which includes a base having a high friction non-abrasive base scanning surface. A holding device includes a cone-shaped cup recess in which a ball element is received.
Bankston, B. F.
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Probe footprint estimation in eddy-current imaging
NDT & E International, 1995 Eddy-current imaging has been described in detail in previous publications [1,2,3]. As with other imaging systems, the image of an object represents blurring of the structures of the object by the system point spread function (PSF). Differing from other imaging systems, the PSF is very large and causes great spatial blurring of the object.
Hedengren, K. +2 more
openaire +4 more sources
Computer Assisted Eddy Current Probe Design
, 1996 For many years, the inspection of components using eddy current (EC) techniques has been playing an important role in the nondestructive evaluation (NDE) industry. There are many factors which affect the probability of detection (POD) of flaws. One important consideration is how to select suitable EC probes to inspect a given test component with ...
Chao, J. C. +3 more
openaire +3 more sources
Применение накладных преобразователей в импульсном вихретоковом контроле [PDF]
, 2016 В статті розглянуто застосування імпульсного режиму збудження накладних вихрострумових перетворювачів з метою розширення функціональних можливостей вихрострумового неруйнівного контролю.
Dugin, Oleksandr L. +11 more
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