Results 11 to 20 of about 12,885 (297)

Modelling and Test of an Integrated Magnetic Spring-Eddy Current Damper for Space Applications [PDF]

open access: yesActuators, 2021
We present the design, manufacturing, and dynamical characterization of a mechanical suspension made by a passive magnetic spring and an eddy current damper integrated into a single device. Three configurations with 2, 3, and 4 permanent magnets axially distributed with opposite polarizations are designed, simulated, manufactured, and tested. Stiffness
Efren Diez-Jimenez   +3 more
openaire   +3 more sources

Three-Dimensional Analytical Modeling of an Eddy-Current-Based Non-Contact Speed Sensor

open access: yesIEEE Open Journal of Industry Applications, 2021
This paper presents a computationally efficient, three-dimensional electromagnetic model for eddy-current-based speed sensors featuring an injection coil, two or more pick-up coils and a magnetic yoke.
Arda Tuysuz   +5 more
doaj   +1 more source

Research on electromagnetic characteristics of traction motor rotary shafts with variable parameter defects based on finite element method

open access: yesScientific Reports, 2023
In view of the breakage of the rotary shaft of the traction motor of the locomotive, in order to ensure the reliability and safety of the equipment, this paper studies the magnetic field containing rich information in the space around the rotary shaft ...
Mengmeng Song   +5 more
doaj   +1 more source

Giant Magnetoresistance Sensors: A Review on Structures and Non-Destructive Eddy Current Testing Applications

open access: yesSensors, 2016
Non-destructive eddy current testing (ECT) is widely used to examine structural defects in ferromagnetic pipe in the oil and gas industry. Implementation of giant magnetoresistance (GMR) sensors as magnetic field sensors to detect the changes of magnetic
Damhuji Rifai   +3 more
doaj   +1 more source

Effects of curvature radius on flexible eddy current array sensors for the curved surface of metal components

open access: yesFrontiers in Physics, 2022
The flexible eddy current array sensor owns the advantages of high sensitivity and strong adaptability, but the results are always affected by the curvature radius of complex curved surfaces.
Zhiyang Deng   +6 more
doaj   +1 more source

An Efficient Algorithm for Finding a Threshold of Useful Signals in the Analysis of Magnetic and Eddy Current Defectograms

open access: yesМоделирование и анализ информационных систем, 2018
To ensure traffic safety of railway transport, non-destructive testing of rails is regularly carried out by using various approaches and methods, including magnetic and eddy current flaw detection methods.
Egor V. Kuzmin   +3 more
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

On Finding a Threshold of Useful Signals in the Analysis of Magnetic and Eddy Current Defectograms

open access: yesМоделирование и анализ информационных систем, 2017
To ensure traffic safety of railway transport, non-destructive testing of rails is regularly carried out by using various approaches and methods, including magnetic and eddy current flaw detection methods. The paper is devoted to the problem of automatic
Egor V. Kuzmin   +3 more
doaj   +1 more source

Simple Giant Magnetoresistance Probe Based Eddy Current System of Defect Characterization for Non-Destructive Testing

open access: yesAdvanced Electromagnetics, 2022
The purpose of this paper is to present a new giant magnetoresistance (GMR) sensor, in eddy current testing technique for surface defect detection, in conducting materials, we show that the GMR based eddy currents probe is more sensitive than the ...
D. R. Touil   +4 more
doaj   +1 more source

Surface Eddy Current Probes: Excitation Systems of the Optimal Electromagnetic Field (Review)

open access: yesПриборы и методы измерений, 2020
Development of technical tools with improved metrological and operational characteristics is the actual problem of the eddy current testing. Ensuring the optimal distribution of the electromagnetic excitation field in the testing zone carries out ...
V. Ya. Halchenko   +2 more
doaj   +1 more source

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