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Eddy Current

Eddy Current Array Optimisation

Eddy Current Array Optimisation

... In eddy current testing, the effects of the material’s properties on the coil impedance is ...the current in the transmit coil is kept constant, the coil voltage will reflect the same changes in the ...

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Defect Detection of Carbon Fiber Composite by Eddy Current Sensor

Defect Detection of Carbon Fiber Composite by Eddy Current Sensor

... Eddy current is one of the important non-destructive detection technologies [1], ...theory, eddy current in metal parts near a coil with alternating excitation will induced an additional ...

6

A Quasi-Analytical Model for Remote Field  Eddy Current Inspection

A Quasi-Analytical Model for Remote Field Eddy Current Inspection

... 13. Thirunavukkarasu, S., B. P. C. Rao, S. Mahadevan, T. Jayaku- mar, B. Raj, Z. Zeng, L. Udpa, and S. S. Udpa, “Finite element modeling for detection of localized defects using remote field eddy current ...

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Design of a Multi-Engine Test Stand with Eddy Current Dynamometer.

Design of a Multi-Engine Test Stand with Eddy Current Dynamometer.

... This project started out with the goal of refurbishing an existing engine test stand that had been worked on by various students but never completed. 1With a team of one Master’s student and two undergraduate students ...

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Comparison of impedance analysis and field analysis in eddy current testing

Comparison of impedance analysis and field analysis in eddy current testing

... This paper presents the theoretical basis of eddy current testing. Firstly, it introduces the impedance analysis method used in the field of eddy current testing. Then we analyze the skin ...

9

Magnet Eddy Current Loss Reduction in Permanent Magnet Machines

Magnet Eddy Current Loss Reduction in Permanent Magnet Machines

... In this paper, a new method has been proposed to reduce the magnet eddy current loss in a high speed machine. The 3-slot/2-pole machine with concentrated winding has been investigated at first. The air-gap ...

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Pulsed Eddy Current Non-destructive Testing and Evaluation: A Review

Pulsed Eddy Current Non-destructive Testing and Evaluation: A Review

... Pulsed eddy current (PEC) non-destructive test- ing and evaluation (NDT&E) has been around for some time and it is still attracting extensive attention from researchers around the globe, which can be ...

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Characteristics of Eddy Current Attenuation and Thickness Measurement of Metallic Plate

Characteristics of Eddy Current Attenuation and Thickness Measurement of Metallic Plate

... that eddy current (EC) density is maxi- mal on conductor surface and decreases exponentially along the depth direction, which is called skin effect [8, ...

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Nondestructive Determination of Stresses  in Steel Components by Eddy Current Method

Nondestructive Determination of Stresses in Steel Components by Eddy Current Method

... Nondestructive eddy current (EC) method for evaluation of stresses in ferromagnetic steel components based on the stress-induced magnetic anisotropy (MA) changes was ...

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Study of Combined Braking System Using Eddy Current

Study of Combined Braking System Using Eddy Current

... Arunesh Kumar Singh et al [2014] [3] this paper presented a detailed study of different types Eddy Current Braking System. Various applications of ECBS such as retarders in high speed trains, in ...

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Evaluation of Sensitivity of Remote Field Eddy Current Testing and Low Frequency Eddy Current Testing for Inspecting Grooves of Metal Plate

Evaluation of Sensitivity of Remote Field Eddy Current Testing and Low Frequency Eddy Current Testing for Inspecting Grooves of Metal Plate

... Earlier studies have validated the effectiveness of RFECT in inspecting back-side grooves in a plate both in numerical simulations and experiment. However, a shield makes it difficult to handle coils; the shield also ...

6

Optimisation Frequency Design of Eddy Current Testing

Optimisation Frequency Design of Eddy Current Testing

... using eddy current instrument to get the optimal frequency of brass, copper and magnesium alloy had been drilled with different of width on the surface (7, 14 and 21 ...fabricated eddy current ...

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Minimization of Eddy-Current Loss in a Permanent-Magnet Tubular Linear Motor

Minimization of Eddy-Current Loss in a Permanent-Magnet Tubular Linear Motor

... Abstract— This paper presents a minimization of eddy-current loss (ECL) in permanent-magnet (PM) of three tubular linear PM motors (TLPMMs). Three-dimensional Finite-Element Analysis has been used for the ...

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Modelling and Evaluation of Electrical Resonance Eddy Current for Submillimeter Defect Detection

Modelling and Evaluation of Electrical Resonance Eddy Current for Submillimeter Defect Detection

... of eddy current probe to submillimeter crack in alloy, which is well known for its microstructural background noise due to different crystallographic orientations of the ...simulate eddy ...

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Measuring misalignment of valve seats using eddy current inspection method

Measuring misalignment of valve seats using eddy current inspection method

... the eddy current intensity in the test piece increases [16]. Eddy currents also contribute to the increasing of the power dissipation of energy that changes the real part of coil ...

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High frequency eddy current measurements using sensor mounted electronics

High frequency eddy current measurements using sensor mounted electronics

... the eddy current sensor coils, reducing issues with cable induced electrical noise, enabling one to detect smaller defects at earlier stages of ...at eddy current frequencies to over 15 ...

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Reduction of eddy current losses in inductive transmission systems with ferrite sheets

Reduction of eddy current losses in inductive transmission systems with ferrite sheets

... in eddy current suppression are necessary to meet the demand for increasing miniaturization of inductively driven transmission systems in industrial and biomedical ...

18

GE Inspection Technologies. Eddy Current Probes and Accessories Catalogue

GE Inspection Technologies. Eddy Current Probes and Accessories Catalogue

... 40A002 For connecting Locator absolute probes to Locator 3s, Phasec 2s/2d 12-way Lemo to BNC 40A003 probes to Locator 3s, Phasec 2s/2d For connecting Locator 2/2s 7-way Lemo Socket 12-way Lemo to 45A101 For connecting ...

24

Eddy Current Detection of Subsurface Cracks in Engine Disk Boltholes

Eddy Current Detection of Subsurface Cracks in Engine Disk Boltholes

... U-core probe and the test geometry Finite element predicted eddy current signals for two different slots in the second layer... This probe is not optimized to provide maximum sensitivity[r] ...

9

Probability of Tight Crack Detection via Eddy Current Inspection

Probability of Tight Crack Detection via Eddy Current Inspection

... CONCLUSION The work reported here shows that the demonstrated ability [2] of replacing a large number of eddy current measurements by a computer simulation in assessing flaw detectabilit[r] ...

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