Results 261 to 270 of about 17,120 (311)
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Implementation of optimized electromagnetic induction coils
SPIE Proceedings, 2014Electromagnetic induction (EMI) systems often employ separate transmit and receive coils that are placed in close proximity to one another. This placement is desirable for packaging reasons, but it makes achieving minimal mutual coupling between the two coils difficult.
Mark A. Reed, Waymond R. Scott
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Electromagnetic actuator for voice coil
The Journal of the Acoustical Society of America, 1979An electromagnetic actuator for linear driving of movable heads of a magnetic disc unit in an information processing system. A plurality of slits or plates are provided with a magnetic pole inscribed directly on the internal surface of a permanent magnet, and increase magnetic reluctance of the magnetic path and reduce inductance of a moving coil, thus
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Electromagnetic and electric field configurations produced by two coils
Acta Orthopaedica Scandinavica, 1980Journal Article ; SCOPUS: ar.j ; info:eu-repo/semantics ...
Dierickx, Maurice +3 more
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Design and testing of a coil-unit barrel for helical coil electromagnetic launcher
Review of Scientific Instruments, 2018A coil-unit barrel for a helical coil electromagnetic launcher is described. It provides better features of high structural strength and flexible adjustability. It is convenient to replace the damaged coil units and easy to adjust the number of turns in the stator coils due to the modular design.
Dong Yang +4 more
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A Versatile Laboratory Electromagnet With HTS Coils
IEEE Transactions on Appiled Superconductivity, 2004We report the development of a laboratory electromagnet utilizing high temperature superconducting (HTS) coils which is designed to generate fields in excess of 3 Tesla, but with power consumption and size significantly below that possible with copper-wound coils for an equivalent useful field volume.
D.M. Pooke +5 more
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Electromagnetic force analysis of a driving coil
2012 16th International Symposium on Electromagnetic Launch Technology, 2012Electromagnetic force (EMF) analysis and configuration design of a driving coil is quite important for a coil launcher. Lots of efforts have been focused on armature and control system to improve efficiency or interior ballistic characteristic. By contrast, EMF performance of a driving coil is rarely researched.
Yadong Zhang, Jiangjun Ruan, Ting Zhan
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Electromagnetic Force Control System of Solenoidal Coil
2018 37th Chinese Control Conference (CCC), 2018This paper focuses on studies of electromagnetic force control system of solenoid coil electromagnetic field. The mathematical relationship of electromagnetic force with power supply current of solenoid electromagnetic coil is derived. The control system of electromagnetic force is constructed, which includes an adjustable PWM power supply and a ...
Fang He, Yayun Zheng, Qiang Wang, Hao Li
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Optimal Coil Currents in Electromagnetic Flow Tomography
IEEE Sensors Journal, 2017Electromagnetic flow meters are a gold standard in measuring the mean flow velocity of conductive liquids and slurries in process industry. A drawback of this approach is that the velocity field cannot be determined. Velocity field information is important for characterizing multiphase flows in the process industry.
Ossi Lehtikangas, Marko Vauhkonen
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Control optimization of electromagnet coil driver for electromagnetic groundwater measurement.
2022As a part of New Zealand’s National Science Challenge, a novel groundwater measurement device was developed by a team of researchers from various institutions, including the University of Canterbury. A prototype device was built during this research.
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Multi-Axis Electromagnetic Moving-Coil Micro-Actuator
Design Engineering and Computers and Information in Engineering, Parts A and B, 2006This paper presents the design and proposed fabrication of an electromagnetic (EM) micro-actuator capable of independent force output in two orthogonal axes of motion. This actuator enables independently controlled in- and out-of-plane motion when coupled with a suitable flexure. An electromagnetic force model is presented.
Dariusz Golda, Martin L. Culpepper
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