Tesla Coil


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Tesla coil

[′tes·lə ‚kȯil]
(electromagnetism)
An air-core transformer used with a spark gap and capacitor to produce a high voltage at a high frequency.

Tesla Coil

 

an electrical transforming device consisting of an air-core transformer, a spark gap, and a capacitor. The primary winding of the transformer consists of a few helical turns of thick copper wire. The secondary winding, which is located within or next to the primary winding, consists of a large number of turns of thin insulated copper wire. The primary winding is connected to an AC source via the spark gap and capacitor. Oscillations of high voltage (up to 7 × 106 volts) and high frequency (up to 1.5 × 105 hertz) are excited in the secondary winding, in which resonance conditions are satisfied.

The Tesla coil was invented in 1891 by N. Tesla. In the early period of the development of radio engineering, it was used at radio stations as a high-frequency oscillator; by the mid-1970’s it was used only for demonstration purposes.

References in periodicals archive ?
* The Tesla coil doesn't have a practical application in today's society besides demonstrating the awesome electrical arcs for amazed onlookers.
The Tesla coil, which is part of the centre's new Curiosity Zone, allows visitors to see the effect of hundreds of thousands of volts lighting up the air in a spectacular fashion.
Meanwhile, gallery two hosts Canadian Alexandre Burton's Impacts, an interactive "live" sculptural installation of Tesla coils fitted with a glass pane and suspended from the ceiling, where the presence of a visitor activates an audio and visual experience involving arcs of electricity.
The public will be able to participate even more intimately by playing with the controls for the tesla coils, turning them up or down on Ultrabook laptops provided by Blaine's sponsor, Intel.
They make music using giant singing Tesla coils which produce electrical arcs up to 12 feet long, each one acting as an instrument with a sound reminiscent of a synthesizer.
ADVENTURES FROM THE TECHNOLOGY UNDERGROUND covers the art of making catapults, pulsejets, flamethrowers, Tesla coils and robots, and comes from a professional engineer who interviews his fellow pros in an effort to find out what drives them to create such devices.
There are many bioelectromagnetics (BEM) devices and instruments emerging that are based on high voltage Tesla coils. These devices may bring beneficial improvements to human organisms.
Tesla coils, rotational physics, vortex energy, the energy grid/harmonics, etc.
make music using giant singing Tesla coils which produce electrical arcs up to twelve feet long, each one S acting as an instrument with a sound reminiscent of the early days of the synthesizer.
They make music using giant singing Tesla coils, which produce electrical arcs up to 12ft long, each one acting as an instrument with a sound reminiscent of the early days of the synthesizer.