coil

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coil:

see inductorinductor,
electric device consisting of one or more turns of wire and typically having two terminals. An inductor is usually connected into a circuit in order to raise the inductance to a desired value.
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; solenoidsolenoid
, device made of a long wire that has been wound many times into a tightly packed coil; it has the shape of a long cylinder. If current is sent through a solenoid made of insulated wire and having a length much greater than its diameter, a uniform magnetic field will be
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.

Coil

One or more turns of wire used to introduce inductance into an electric circuit. At power line and audio frequencies a coil has a large number of turns of insulated wire wound close together on a form made of insulating material, with a closed iron core passing through the center of the coil. This is commonly called a choke and is used to pass direct current while offering high opposition to alternating current.

At higher frequencies a coil may have a powdered iron core or no core at all. The electrical size of a coil is called inductance and is expressed in henries or millihenries. In addition to the resistance of the wire, a coil offers an opposition to alternating current, called reactance, expressed in ohms. The reactance of a coil increases with frequency. See Inductor

coil

[kȯil]
(control systems)
Any discrete and logical result that can be transmitted as output by a programmable controller.
(electromagnetism)
A number of turns of wire used to introduce inductance into an electric circuit, to produce magnetic flux, or to react mechanically to a changing magnetic flux; in high-frequency circuits a coil may be only a fraction of a turn. Also known as electric coil; inductance; inductance coil; inductor.
(science and technology)
An arrangement of flexible material into a spiral or helix.

Coil

One or more turns of wire used to introduce inductance into an electric circuit. At power line and audio frequencies a coil has a large number of turns of insulated wire wound close together on a form made of insulating material, with a closed iron core passing through the center of the coil. This is commonly called a choke and is used to pass direct current while offering high opposition to alternating current.

At higher frequencies a coil may have a powdered iron core or no core at all. The electrical size of a coil is called inductance and is expressed in henries or millihenries. In addition to the resistance of the wire, a coil offers an opposition to alternating current, called reactance, expressed in ohms. The reactance of a coil increases with frequency. See Inductor, Reactor (electricity)

heat exchanger

A device designed to transfer heat between two physically separated fluids; generally consists of a cylindrical shell with longitudinal tubes; one fluid flows on the inside, the other on the outside.

coil

1. an electrical conductor wound into the form of a spiral, sometimes with a soft iron core, to provide inductance or a magnetic field
2. the transformer in a petrol engine that supplies the high voltage to the sparking plugs
References in periodicals archive ?
Summary: A new market study, titled "Discover Global Knee Coil Market Upcoming Trends, Growth Drivers and Challenges" has been featured on WiseGuyReports.
Chest X-ray: postero-anterior view (a) and lateral view (b) with the coil on the right hilum topography and pelvis X-ray (c) with the coils on the hypogastric and gonadal veins.
(4) A two-port model of the selectable options in HFSS was adopted to add a capacitor to resonate at 13.56 MHz with both the transmit and receive coils. After calculating the resonance capacitance from f = l/2[pi] [square root of (LC)] to C = l/[(2[pi]f).sup.2] L, the capacitance value was changed slightly based on the calculated value, and the exact capacitance value was found for the desired resonance frequency.
There was no mortality related to procedure, multiple coils were used In 11 patients, 8 patients 3 coils ,12 patients had 2 coils and 7 patients had single coil utlized.
Although hail is a commonly reported cause of loss, field investigations often reveal other sources of damage to condenser coils. Statistics show that nearly three out of 10 systems with claimed hail damage in 2016 were actually damaged by some other cause, and in many cases by another foreign object.
Delta pressure readings were recorded across Hospital A and Hospital B's cooling coils post chemical cleaning and post UVGI installation.
This quantitative analysis further confirms the following observations: (a) the NRMSE and SNR values of the reconstructed images with 32 original coils, 6 virtual coils in SCC, and 6 virtual coils in GCC are always close; (b) when the acceleration factor is low (2 or 3), data from 32 original coils generate the least errors and the highest SNR; (c) when the acceleration factor is high (5 or 6), data from 6 virtual coils in GCC generate the least errors and the highest SNR.
For intraocular pressure applications, the distance between coils will remain constant so the coupling factor k will not change, making the resonating frequency [f.sub.s] of the implant the only variable capable of changing the impedance of (5).
There have been divergent views in the country on the efficacy of mosquito coils; with opinions divided as to its potency to kill mosquitoes (Atagra, 2008).
Rogowski coil is composed of uniformly wound n number of turns on a nonmagnetic core (dielectric).
Cook Medical Inc., based in Bloomington, Ind., has released a new 0.35 inch embolization coil, intended for peripheral arterial and venous embolization.