Results 11 to 20 of about 1,110 (240)

Research on residual wall thickness inversion of oil and gas pipelinewith cladding based on support vector machine

open access: yesYou-qi chuyun, 2021
The oil and gas pipelines in the oil field are usually equipped with a layer of cladding in certain thickness, and the pulsed eddy current testing technology can be adopted to measure the wall thickness without removing the cladding, which saves a lot of
Xianfeng HAO   +4 more
doaj   +1 more source

Wall Thinning Assessment for Ferromagnetic Plate with Pulsed Eddy Current Testing Using Analytical Solution Decoupling Method

open access: yesApplied Sciences, 2021
The wall-thinning measurement of ferromagnetic plates covered with insulations and claddings is a main challenge in petrochemical and power generation industries. Pulsed eddy current testing (PECT) is considered as a promising method.
Qing Zhang, Xinjun Wu
doaj   +1 more source

Comparison of different types of focusing probes in pulsed eddy current testing

open access: yesAIP Advances, 2022
Pulsed eddy current (PEC) testing has attracted widespread attention because of its unique advantages in detecting local defects in insulated pipes. In this paper, rectangular, U-shaped, and semicircular PEC focusing probes are designed, the magnetic ...
Fan Yang   +5 more
doaj   +1 more source

Multi-Frequency Magnetic Induction Tomography System and Algorithm for Imaging Metallic Objects

open access: yesSensors, 2021
Magnetic induction tomography (MIT) is largely focused on applications in biomedical and industrial process engineering. MIT has a great potential for imaging metallic samples; however, there are fewer developments directed toward the testing and ...
Gavin Dingley, Manuchehr Soleimani
doaj   +1 more source

A DOUBLE PULSE EDDY CURRENT TESTING SYSTEM [PDF]

open access: yes, 1959
ing. Radiography was used to ore fter bending. The ultrainspect the alloys cores, ished fuel elements. as used to determine element core blanks. at ing fatigue tests were performed in the range 1300 to 1500 F, for frequencies of 6 and 60 cpm. Continuous traces of load and strain were made to determine relationships between stress, strain, and lifetime,
Renken, C.J., Myers, R.G.
openaire   +2 more sources

MACHINE-LEARNING-BASED EVALUATION OF CORROSION UNDER INSULATION IN FERROMAGNETIC STRUCTURES

open access: yesInternational Islamic University Malaysia Engineering Journal, 2021
Corrosion under insulation CUI is one of the challenging problems in pipelines used in the gas and oil industry as it is hidden and difficult to detect but can cause catastrophic accidents.
Ali Sophian   +4 more
doaj   +1 more source

Numerical Analysis of Pulsed Eddy Current Testing for Erosion Defects of High-pressure Manifold

open access: yesShiyou jixie, 2023
In fracturing operation, erosional damage easily occurs in high-pressure manifold running for a long time under bad working conditions, and the online testing of high-pressure manifold is particularly important to ensure safe production.Based on pulsed ...
Li Jie   +4 more
doaj  

Defect Characterization Based on Eddy Current Technique: Technical Review

open access: yesAdvances in Mechanical Engineering, 2014
Eddy current testing is widely used for nondestructive evaluation of metallic structures in characterizing numerous types of defects occurring in various locations.
Ruzlaini Ghoni   +3 more
doaj   +1 more source

Non-Destructive Techniques Based on Eddy Current Testing

open access: yesSensors, 2011
Non-destructive techniques are used widely in the metal industry in order to control the quality of materials. Eddy current testing is one of the most extensively used non-destructive techniques for inspecting electrically conductive materials at very ...
Ernesto Vázquez-Sánchez   +2 more
doaj   +1 more source

Parameter identification of pulsed eddy current testing equivalent circuit model and its application to defect evaluation

open access: yesMeasurement + Control, 2021
The equivalent circuit model of pulsed eddy current testing (PECT) has simple mathematics but its applications are limited to qualitative analysis such as principle illustration and signal interpretation.
Zhiyuan Xu, Shanwei Fan, Tiejun Song
doaj   +1 more source

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