Shape-based defect classification for Non Destructive Testing
, 2015 The aim of this work is to classify the aerospace structure defects detected by eddy current non-destructive testing. The proposed method is based on the assumption that the defect is bound to the reaction of the probe coil impedance during the test ...
D'Angelo, Gianni, Rampone, Salvatore
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The use of orbitals and full spectra to identify misalignment [PDF]
, 2014 In this paper, a SpectraQuest demonstrator is used to introduce misalignment in a rotating set-up. The vibrations caused by misalignment is measured with both accelerometers on the bearings and eddy current probes on the shaft itself.
D Southwick +6 more
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Development and Application of Wide Bandwidth Magneto-Resistive Sensor Based Eddy Current Probe [PDF]
, 2010 The integration of magneto-resistive sensors into eddy current probes can significantly expand the capabilities of conventional eddy current nondestructive evaluation techniques.
Simpson, John, Wincheski, Russell A.
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A comparative study of using spindle motor power and eddy current for the detection of tool conditions in milling processes [PDF]
, 2015 This paper investigates the use of the power of the driving motor of a CNC spindle in comparison to two perpendicular eddy current sensors for the detection of tool wear in milling processes. Monitoring the power through the current profile is a low cost
Abbass, JK, Al-Habaibeh, A
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Lift-Off Effect of Koch and Circular Differential Pickup Eddy Current Probes
Chinese Journal of Mechanical EngineeringA flexible or planar eddy current probe with a differential structure can suppress the lift-off noise during the inspection of defects. However, the extent of the lift-off effect on differential probes, including different coil structures, varies.
Guolong Chen +5 more
doaj +1 more source
Angular Spectral Density and Information Entropy for Eddy Current Distribution
Entropy, 2016 Here, a new method is proposed to quantitatively evaluate the eddy current distribution induced by different exciting coils of an eddy current probe. Probability of energy allocation of a vector field is modeled via conservation of energy and imitating ...
Guolong Chen, Weimin Zhang
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Minimizing the effect of probe-to-metal spacing in eddy current testing [PDF]
, 1959 "January 8, 1959."Two titles published in one volume. "Reduction of probe-spacing effect in pulsed eddy current testing" by Donald L. Waidelich and "Minimizing the effect of probe-to-metal spacing in eddy current testing" by C.J. Renken Jr.
Renken Jr., C.J., Waidelich, Donald L.
core
Two Novel Information Entropy Indices for Analysis of the Eddy Current Distribution
Entropy, 2018 The Koch curve exciting coil eddy current sensor is a kind of novel flexible planar eddy current probe. In this study, an intersection angle spectrum entropy index and a radial direction energy spectrum entropy were proposed to evaluate the eddy current ...
Guolong Chen
doaj +1 more source
Eddy Current System for Material Inspection and Flaw Visualization [PDF]
, 2007 Eddy current methods have been successfully used in a variety of non-destructive evaluation applications including detection of cracks, measurements of material thickness, determining metal thinning due to corrosion, measurements of coating thickness ...
Bachnak, R. +3 more
core +1 more source
Spin current induced magnetization oscillations in a paramagnetic disc [PDF]
, 2011 When electron spins are injected uniformly into a paramagnetic disc, they can precess along the demagnetizing field induced by the resulting magnetic moment.
Abraham Slachter +2 more
core +4 more sources