Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Yinzhao Lei"'
Publikováno v:
Finite Fields and Their Applications. 82:102066
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48d2af79275948e7523c50cd7ddbe0dd
https://doi.org/10.1016/j.ffa.2022.102066
https://doi.org/10.1016/j.ffa.2022.102066
Autor:
Yinzhao Lei, Xuefei Mao
Publikováno v:
NDT & E International. 78:10-19
Swept-frequency eddy current measurement of pipe thickness is studied in this paper. First, suitable frequency range of swept-frequency eddy current testing is determined by comparing sensitivities of relative reactance change with respect to pipe th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2308b0d3f0a48c4f88929e8d604f1985
https://doi.org/10.1016/j.ndteint.2015.11.001
https://doi.org/10.1016/j.ndteint.2015.11.001
Autor:
Jin Xu, Yinzhao Lei
Publikováno v:
Measurement Science and Technology. 32:035104
In high-frequency eddy-current testing, the coil impedance is often seriously affected by the capacitance effect, while the existing calibration method only corrects the capacitive couplings within the coil itself and ignores the coupling between the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0caf440d7bc4cebfdf214b79a3d0d6fa
https://doi.org/10.1088/1361-6501/abc9f9
https://doi.org/10.1088/1361-6501/abc9f9
Autor:
Yinzhao Lei, Xingle Chen
Publikováno v:
NDT & E International. 75:33-38
Pulsed eddy current testing (PECT) method for electrical conductivity measurement of ferromagnetic metallic materials is proposed. Based on time-domain analytical solutions to the PECT model of ferromagnetic plates, the conductivity and permeability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd040b1503a6e72868a04247c2b4e109
https://doi.org/10.1016/j.ndteint.2015.06.005
https://doi.org/10.1016/j.ndteint.2015.06.005
Autor:
Yinzhao Lei, Xingle Chen
Publikováno v:
NDT & E International. 68:22-27
Using the second-order vector potential formalism and block matrix, the non-axisymmetric eddy current field induced by a probe coil positioned perpendicularly outside a conducting ferromagnetic pipe is solved analytically. Then, the time-domain expre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d318bb20e6c27acd4f153024a3755cf7
https://doi.org/10.1016/j.ndteint.2014.07.005
https://doi.org/10.1016/j.ndteint.2014.07.005
Autor:
Yinzhao Lei, Xingle Chen
Publikováno v:
NDT & E International. 66:28-33
Advantages of pulsed excitation current over conventional harmonic excitation for measuring the thickness of a ferromagnetic plate are studied. Compared with the sinusoidal voltage induced by harmonic excitation current, the time-domain voltage induc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a009cb530d22f1a1d06e9bc4845281a
https://doi.org/10.1016/j.ndteint.2014.04.006
https://doi.org/10.1016/j.ndteint.2014.04.006
Autor:
Liangliang Zhang, Yinzhao Lei
Publikováno v:
IEEE Transactions on Education. 57:20-24
Synchrophasors, widely used in the monitoring and analysis of power systems, evolved from the phasor method presented by Charles Proteus Steinmetz in 1893. The phasor method is a mathematical method for solving linear sinusoidal steady-state circuits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c446009872ce45afb61abbe7c5624bd
https://doi.org/10.1109/te.2013.2262686
https://doi.org/10.1109/te.2013.2262686
Analysis of eddy current interaction between a parallel coil and a ferromagnetic pipe with remanence
Autor:
Yinzhao Lei, Xuefei Mao
Publikováno v:
NDT & E International. 60:121-126
Eddy current field excited by a parallel coil placed next to a ferromagnetic pipe with remanence is studied in this paper. The influence of the remanence is analyzed at first. The analytical solutions to the ferromagnetic pipe eddy current field are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82e413198f7fa2ee73625249f527cab0
https://doi.org/10.1016/j.ndteint.2013.07.012
https://doi.org/10.1016/j.ndteint.2013.07.012
Autor:
Xuefei Mao, Yinzhao Lei
Publikováno v:
NDT & E International. 54:69-74
Eddy current field excited by a probe coil near a conductive pipe is studied analytically by means of a second-order vector potential formalism in this paper. Closed-form expressions of the second-order vector potentials are deduced directly in the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0c4626eb72a6bafc332d593b0f4e75e
https://doi.org/10.1016/j.ndteint.2012.11.010
https://doi.org/10.1016/j.ndteint.2012.11.010
Publikováno v:
IEEE Transactions on Power Delivery. 25:1146-1153
Parallel adjacent erection of UHVAC and UHVDC transmission lines in the same corridor will occur in the east of China. So the calculation method for the ac and dc hybrid electric field over the ground surface under this type of lines need to be studi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2f6bc6f70bec0ae76f2bd26ead6f594
https://doi.org/10.1109/tpwrd.2009.2036359
https://doi.org/10.1109/tpwrd.2009.2036359