Zobrazeno 1 - 10
of 49
pro vyhledávání: '"James R. Nagel"'
Publikováno v:
KONA Powder and Particle Journal, Vol 37, Iss 0, Pp 258-264 (2019)
Electrodynamic sorting (EDX) is a new technology developed to sort industrial scrap metals. Under the present embodiment, an electromagnet is placed directly underneath a conveyor belt and then excited by an alternating electrical current to produce
Externí odkaz:
https://doaj.org/article/6539d8d341f14bc98ec226d043669013
Publikováno v:
KONA Powder and Particle Journal, Vol 35, Iss 0, Pp 251-257 (2017)
Electrodynamic sorting is a process that sorts metals based on conductivity, density, and geometry. The process works by inducing electrical eddy currents within particles placed in a time-varying magnetic field. For the special case of a perfect, un
Externí odkaz:
https://doaj.org/article/c1802d879ffc4dac92c3e198f039e2e8
Publikováno v:
KONA Powder and Particle Journal, Vol 34, Iss 0, Pp 241-247 (2016)
We present a novel technique for sorting nonferrous metal scrap by using eddy current separation. However, rather than vary the magnetic field with a spinning rotary drum, our system utilizes a fixed electromagnet excited by an alternating electric c
Externí odkaz:
https://doaj.org/article/4663ad83ddbc469e8db90ffeafc60a7b
Autor:
James R. Nagel
Publikováno v:
IEEE Antennas and Propagation Magazine. 64:41-49
Autor:
James R. Nagel
Publikováno v:
Progress In Electromagnetics Research M. 107:231-242
Publikováno v:
IEEE Sensors Journal. 21:16134-16140
Unexpected results have been seen in multiple papers involving spread spectrum time domain reflectometry (SSTDR) measurements on twin lead cables with one line containing a fault. A small portion of the signal is able to transmit past the fault, refl
Autor:
James R. Nagel
Publikováno v:
IEEE Transactions on Magnetics. 55:1-8
The magnetic excitation of eddy currents in thin metal sheets is a mathematically challenging problem with many practical applications. Since the eddy current density is a solenoidal field on a 2-D plane, we may express it as the curl of a separate v
Publikováno v:
Minerals Engineering. 133:149-159
Eddy current separation (ECS) is a process used throughout the scrap recycling industry for sorting nonferrous metals from other nonmetallic fluff. The mechanism is based on the principle that a time-varying magnetic field will induce electrical curr
Publikováno v:
Applied optics. 58(29)
The increasing prevalence of satellite-to-ground laser communications necessitates unconditional security measures that so far can only be provided by quantum key distribution. However, in a free-space optical channel, the diffraction of laser beams
Autor:
James R. Nagel
Publikováno v:
IEEE Antennas and Propagation Magazine. 60:81-88
A complete mathematical formalism is introduced to describe the excitation of electrical eddy currents due to a time-varying magnetic field. The process works by applying a quasistatic approximation to Ampere's law and then segregating the magnetic f