magnetic coil
61Ignition coil — Bosch ignition coil. Dual ignition coils (blue cylinders, top of picture) on a …
62Near-field magnetic induction communication — A near field magnetic induction communication system is a short range wireless physical layer that communicates by coupling a tight, low power, non propagating magnetic field between devices. The concept is for a transmitter coil in one device to …
63Field coil — A field coil is a component of an electro magnetic machine, typically a rotating electrical machine such as a motor or generator. A current carrying coil is used to generate a magnetic field. Magnetic fields require a continuous circuit, thus… …
64Rogowski coil — A Rogowski coil, named after Walter Rogowski, is an electrical device for measuring alternating current (AC) or high speed current pulses. It consists of a helical coil of wire with the lead from one end returning through the centre of the coil… …
65ignition coil — A pulse transformer which is a part of the ignition system. It receives a small amount of electrical voltage from the battery and steps up the low primary voltage and amplifies it into a big jolt of voltage of about 20,000 volts, and sends it to… …
66Electro Magnetic Acoustic Transducer — An Electro Magnetic Acoustic Transducer (EMAT), is a non contact inspection device that generates an ultrasonic pulse in the part or sample inspected, instead of the transducer. The waves reflected by the sample induce a varying electric current… …
67Loading coil — In electronics, a loading coil or load coil is a coil (inductor) that does not provide coupling to any other circuit, but is inserted in a circuit to increase its inductance. The need was discovered by Oliver Heaviside in studying the… …
68voice coil — noun : a coil in an electro acoustic instrument (as a microphone or a loudspeaker) that carries the audio frequency currents corresponding to the sound waves * * * Elect. a moving coil that drives the diaphragm of a sound reproduction system, as… …
69search coil — noun : flip coil * * * search coil, a small coil of insulated wire used for measuring the strength of magnetic fields by means of the currents induced in the coil. * * * n. Physics a flat coil of insulated wire connected to a galvanometer, used… …
70Endorectal coil magnetic resonance imaging — or endorectal coil MRI is a type of medical imaging in which MRI is used in conjunction with a coil placed into the rectum in order to obtain high quality images of the area surrounding the rectum. [cite journal | author=Hricak H, White S,… …
