Zobrazeno 1 - 10
of 57
pro vyhledávání: '"John C. Moulder"'
Autor:
B. A. Auld, John C. Moulder
Publikováno v:
Journal of Nondestructive Evaluation. 18:3-36
A comprehensive review of advancements in eddy current (EC) modeling is presented. This paper contains three main sections: a general treatise of EC theory, the thin skin EC forward modeling, and the EC inverse problem. (1) The general treatise of ed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0680125ecb13bf0d0fd3e9c903eeff0
https://doi.org/10.1023/a:1021898520626
https://doi.org/10.1023/a:1021898520626
Publikováno v:
IEEE Transactions on Magnetics. 34:505-514
We study the frequency-dependent inductance of a small air-cored coil of wire placed flat upon various ferromagnetic metal plates. The change in the complex inductance of the coil, measured with an HP 4193A impedance analyzer, is reported for frequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7d5f6fffeb873564f8897655cd75a5e
https://doi.org/10.1109/20.661482
https://doi.org/10.1109/20.661482
Publikováno v:
Journal of Applied Physics. 82:4604-4610
Quantitative measurements have been made recently for the inductance of a coil placed next to flat ferromagnetic metal plates [1–3]. Results for a suite of low carbon steels were in good agreement with the analytic solutions of Cheng [4] and Dodd a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33427a0707494454ad71a8040d793898
https://doi.org/10.1063/1.366197
https://doi.org/10.1063/1.366197
Publikováno v:
Journal of Applied Physics. 81:6397-6406
There is growing interest in the applications of wavelets as basis functions in solutions of integral equations, especially in the area of electromagnetic field problems. In this article we apply a wavelet expansion to the solution of the three-dimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e2869b7144f30daa128f6f5f36aa507
https://doi.org/10.1063/1.364420
https://doi.org/10.1063/1.364420
Publikováno v:
Review of Scientific Instruments. 67:3965-3972
Coatings and surface treatments find a wide range of technological applications; they can provide wear resistance, oxidation and corrosion protection, electrical contact or isolation and thermal insulation. Consequently, the ability to determine the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecebbe458bdab2f704868213db13cacb
https://doi.org/10.1063/1.1147300
https://doi.org/10.1063/1.1147300
Publikováno v:
Journal of Applied Physics. 79:2811-2821
Changes in the impedance of a coil next to a one‐dimensional layered conductor due to three‐dimensional changes in the conductivity are studied. Eddy current probes are often used to inspect layered one‐dimensional, nonmagnetic metal structures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::721344afee46af710503bbf7cdbe3c3c
https://doi.org/10.1063/1.361273
https://doi.org/10.1063/1.361273
Publikováno v:
Inverse Problems. 10:753-764
We report experimental measurements that test an inverse method for determining the electrical properties of conducting surface layers on metals. We test the method's ability to determine the spatial variation of the near-surface electrical conductiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e22131d5a269d66b447b41cab81028fd
https://doi.org/10.1088/0266-5611/10/3/016
https://doi.org/10.1088/0266-5611/10/3/016
Publikováno v:
Journal of Applied Physics. 74:2076-2089
The frequency‐dependent impedance of right‐cylindrical air‐core eddy‐current probes over thick metal plates whose conductivity and permeability vary as a function of depth in the near‐surface region have been studied both experimentally and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6b6d4d621c76b4397a342d31097828f
https://doi.org/10.1063/1.354773
https://doi.org/10.1063/1.354773
Publikováno v:
Review of Scientific Instruments. 63:3455-3465
A robust method that uses eddy current measurements to determine the conductivity and thickness of uniform conductive layers is described. The method was tested by estimating the conductivity and thickness of aluminum and copper layers on various sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9164456fc56b032d46fb4eb7f9c1453d
https://doi.org/10.1063/1.1143749
https://doi.org/10.1063/1.1143749
Autor:
John C. Moulder, Denise Hayward
Publikováno v:
Materials Technology. 12:101-103
(1997). New Fast, Portable, and Relatively Low Cost Pulsed Eddy Current Instrument that LocatesFlaws in Layered Structures has Many Potential Applications. Materials Technology: Vol. 12, No. 3-4, pp. 101-103.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b01c3a539e59fa0d8aa7d20694958d0d
https://doi.org/10.1080/10667857.1997.11752737
https://doi.org/10.1080/10667857.1997.11752737