Results 261 to 270 of about 12,183 (299)

An electromagnetic variable-ratio torque convertor

Proceedings of the IEE Part A: Power Engineering, 1959
The torque convertor differs radically from any other type known to be in commercial use. It depends for its operation upon the phenomenon exemplified in Faraday's disc and constitutes, theoretically, an ‘infinitely variable’ gear whose ratio can be varied over a wide range.This paper is limited to a brief description of the basic principles and some ...
D.O. Bishop, G.S. Brosan
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Spin-Torque Oscillator in an Electromagnet Package

IEEE Transactions on Magnetics, 2012
Spin-torque oscillators (STO) hold promise for multi-octave frequency operation at very high frequencies and modulation speeds. STO operation is typically demonstrated using large electromagnets and probe stations, and has so far not been packaged with a portable form factor. For STOs to be utilized in real applications, a smaller packaging solution is
Persson J, Sani SR, Bonetti S, Magnusson F, Pogorylov Y, Mohseni SM, Gunnarsson S, Norling M, Stoij C, Akerman J   +9 more
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Analysis of electromagnetic torque of induction machines with the load torque changes suddenly

2014 17th International Conference on Electrical Machines and Systems (ICEMS), 2014
Since many Cascaded H-bridge multilevel (CHBML) inverters that are applied to drive high voltage machines can't transmit electric energy reversely, the electric energy transmitted from the machines may damage the inverters. This paper presents a transfer function to analyze the electromagnetic torque, when the load torque changes suddenly. Based on the
Xinjian Cai, Zhenxing Wu, Le Sun
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Electromagnetic torque on the toroidal plasma and the error-field induced torque

Nuclear Fusion, 2007
The electromagnetic torque on the toroidal plasma is calculated assuming a linear plasma response to the applied perturbation, which may be the error field or the field created by the correction coils, or both. The result is compared with recently published expressions for the error field induced torque (Zheng et al 2006 Nucl.
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Electromagnetic brake with controllable torque

Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry, 1961
MANY LARGE materials handling machines and processing machines require smooth, accurate stopping. In the past, accurate stopping has usually been accomplished by the use of hydraulic brakes. Recently, an electromagnetic brake has been developed to perform the same functions and to overcome some disadvantages of hydraulic brakes, such as the need for ...
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Radiation torque on a birefringent sphere caused by an electromagnetic wave

Physical Review E, 2005
We present an exact ab initio calculation of the optical torque on a spherical uniaxially birefringent particle of arbitrary size illuminated by plane electromagnetic wave of arbitrary polarization mode and direction of propagation. The calculation is based on the extended Mie theory and the Maxwell stress tensor formalism.
Mengkun, Liu, Nian, Ji, Zhifang, Lin, S T, Chui   +3 more
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Force and Torque Production in Electromagnetic Circuits

2011
In Chap. 6 inductors have been analyzed. In these devices there are no moving parts. In this chapter the force (\( {\vec{\hbox{F}}} \)) and torque (\( {\vec{\hbox{T}}} \)) production in electromagnetic circuits such as magnets, actuators, relays, linear and rotating machines will be discussed.
Ewald F. Fuchs, Mohammad A. S. Masoum
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Design of Electromagnetic Torque Rods

1965
Abstract : This report is a compilation of considerations involved in the design of electro-magnetic rods for satellite erection. Formulae are derived showing the effect of various choices of core and wire material and weight, number of cores, length of cores, number of turns per core, and wire area on the magnetic moment, hysteresis power, hold power,
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Proposal for electromagnetic torque estimation

1999
In this paper the proposal for electromagnetic torque estimation for AC slip-ring motor is inestigated. Basicaly, two methods are propsed: electromagnetic torgue estimation based on DC stator voltage and current values and electromagnetic torgue estimation based on the AC stator voltage and currents values.
Ferega, Davor, Slutej, Alojz, Kolonić, Fetah, Idžotić, Tomislav   +3 more
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Torque Kills! Future Control of the Ambient Electromagnetic Spectrum

IEEE Multimedia, 2007
Recently the development of sensor-based experiential systems points to a new direction of multimedia research. Comparing the mobile communication and medical imaging described in science fiction with today's developments, Keith Baker reflects on the chances and pitfalls of research within the electromagnetic ...
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