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2. Induction coil - Wikipedia

   en.wikipedia.org/wiki/Induction_coil

   Antique induction coil used in schools from around 1900, Bremerhaven, Germany. An induction coil or "spark coil" (archaically known as an inductorium or Ruhmkorff coil [1] after Heinrich Rühmkorff) is a type of transformer [2] [3] [4] used to produce high-voltage pulses from a low-voltage direct current (DC) supply.

3. Pulsed inductive thruster - Wikipedia

   en.wikipedia.org/wiki/Pulsed_inductive_thruster

   The Mk VII (early 2000s) has the same geometry as Mk VI, but is designed for high pulse frequency and long-duration firing with a liquid-cooled coil, longer-life capacitors, and fast, high-power solid-state switches. The goal for Mk VII is to demonstrate up to 50 pulses per second at the rated efficiency and impulse bit at 200 kW of input power ...

4. Metal detector - Wikipedia

   en.wikipedia.org/wiki/Metal_detector

   This then was the first magnetic induction metal detector, and the first pulse induction metal detector. In late 1878 and early 1879, Professor (of music) David Edward Hughes published his experiments with the 4-coil induction balance. [3] He used his own recent invention the microphone and a ticking clock to generate regular pulses and a ...

5. Electromagnetic induction - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_induction

   A diagram of Faraday's iron ring apparatus. Change in the magnetic flux of the left coil induces a current in the right coil. [2] Electromagnetic induction was discovered by Michael Faraday, published in 1831. [3] [4] It was discovered independently by Joseph Henry in 1832. [5] [6]

6. Inductance - Wikipedia

   en.wikipedia.org/wiki/Inductance

   Electromagnetic induction; Electromagnetic pulse; ... as a convenient way to refer to "coefficient of self-induction". [2 ... is the number of turns in coil 2 ...

7. Transcranial magnetic stimulation - Wikipedia

   en.wikipedia.org/wiki/Transcranial_magnetic...

   An electric pulse generator, or stimulator, is connected to a magnetic coil connected to the scalp. The stimulator generates a changing electric current within the coil which creates a varying magnetic field, inducing a current within a region in the brain itself. [1]: 3 [2]

8. Resolver (electrical) - Wikipedia

   en.wikipedia.org/wiki/Resolver_(electrical)

   The rotor houses a coil, which is the secondary winding of the turning transformer, and a separate primary winding in a lamination, exciting the two two-phase windings on the stator. The primary winding of the transformer, fixed to the stator, is excited by a sinusoidal electric current, which by electromagnetic induction induces current in the ...

9. Induction loop - Wikipedia

   en.wikipedia.org/wiki/Induction_loop

   An induction or inductive loop is an electromagnetic communication or detection system which uses a moving magnet or an alternating current to induce an electric current in a nearby wire. Induction loops are used for transmission and reception of communication signals, or for detection of metal objects in metal detectors or vehicle presence ...