Safety of Active Implantable Devices During MRI Examinations: A
... an empty titanium pump case with its antenna. A signal generator was connected to the emitting loop antenna, which was placed around the pump, and used to produce RF fields at predefined power levels. Two different tuning conditions were used in the validation to verify that the FE model captures th ...
... an empty titanium pump case with its antenna. A signal generator was connected to the emitting loop antenna, which was placed around the pump, and used to produce RF fields at predefined power levels. Two different tuning conditions were used in the validation to verify that the FE model captures th ...
PPT - Link to J-PARC Accelerator Subgroup etc.
... [10] L. J. Lindgren et al.: “Fast Kicker Magnet System,” Nucl. Instr. and Meth. 214 (1983) 175-178. [11] Gerd Stange: “A new delay-line kicker with capacitive loading sandwiches,” Nucl. Instr. and Meth. A 300 (1991) 425430. [12] M. Kikuchi et al.: “Beam-transport system of KEKB,” Nucl. Instr. and Me ...
... [10] L. J. Lindgren et al.: “Fast Kicker Magnet System,” Nucl. Instr. and Meth. 214 (1983) 175-178. [11] Gerd Stange: “A new delay-line kicker with capacitive loading sandwiches,” Nucl. Instr. and Meth. A 300 (1991) 425430. [12] M. Kikuchi et al.: “Beam-transport system of KEKB,” Nucl. Instr. and Me ...
Ch21_Faraday_ANS
... How does the current in the resistor I R compare to the current in the drawn from the AC source Iinput? (With AC circuits, we always use rms values of I and V.) A) I R > I_in B) I R < I_in I_in C) I R = I_in IR D) Depends on the value of Iin ...
... How does the current in the resistor I R compare to the current in the drawn from the AC source Iinput? (With AC circuits, we always use rms values of I and V.) A) I R > I_in B) I R < I_in I_in C) I R = I_in IR D) Depends on the value of Iin ...
wireless energy meter reading system using zigbee
... The EB side module is designed to work as follows. The receiver module is interfaced with a system which is monitored by the officials in the electricity board. The Zigbee transceiver on the EB module receives the data and displays it in the terminal C window of the system interfaced with it. The ho ...
... The EB side module is designed to work as follows. The receiver module is interfaced with a system which is monitored by the officials in the electricity board. The Zigbee transceiver on the EB module receives the data and displays it in the terminal C window of the system interfaced with it. The ho ...
![[ThA1-3] "Magnetic Ear"-Based Balancing of Magnetic Flux in High](http://s1.studyres.com/store/data/023118059_1-1b39f154ae572d53d219653223db620a-300x300.png)
Resonant inductive coupling
Resonant inductive coupling or electrodynamic induction is the near field wireless transmission of electrical energy between two magnetically coupled coils that are part of resonant circuits tuned to resonate at the same frequency. This process occurs in a resonant transformer, an electrical component which consists of two high Q coils wound on the same core with capacitors connected across the windings to make two coupled LC circuits. Resonant transformers are widely used in radio circuits as bandpass filters, and in switching power supplies. Resonant inductive coupling is also being used in wireless power systems. Here the two LC circuits are in different devices; a transmitter coil in one device transmits electric power across an intervening space to a resonant receiver coil in another device. This technology is being developed for powering and charging portable devices such as cellphones and tablet computers at a distance, without being tethered to an outlet.Resonant transfer works by making a coil ring with an oscillating current. This generates an oscillating magnetic field. Because the coil is highly resonant, any energy placed in the coil dies away relatively slowly over very many cycles; but if a second coil is brought near it, the coil can pick up most of the energy before it is lost, even if it is some distance away. The fields used are predominately non-radiative, near fields (sometimes called evanescent waves), as all hardware is kept well within the 1/4 wavelength distance they radiate little energy from the transmitter to infinity.One of the applications of the resonant transformer is for the CCFL inverter. Another application of the resonant transformer is to couple between stages of a superheterodyne receiver, where the selectivity of the receiver is provided by tuned transformers in the intermediate-frequency amplifiers. The Tesla coil is a resonant transformer circuit used to generate very high voltages, and is able to provide much higher current than high voltage electrostatic machines such as the Van de Graaff generator. Resonant energy transfer is the operating principle behind proposed short range (up to 2 metre) wireless electricity systems such as WiTricity or Rezence and systems that have already been deployed, such as Qi power transfer, passive RFID tags and contactless smart cards.