What is a solenoid electromagnetic coil?

What is a solenoid electromagnetic coil?

The spiral tube is the electromagnetic coil, a simple magnetoelectric conversion device.

Magnetic field lines are used to create magnetic field information in a circular solenoid (sectional view).

The solenoid (from the French SOLENOIDE, from the Greek SOLEN derivation and the "tube, channel steel" + combined with the Greek Eidos company "form, form" form [1]) is a coil winding into a compact spiral. The word was invented by a French physicist Andre Marie ampere specifying a spiral coil.

Spiral coil

In physics, the term refers specifically to a long, thin ring of wire, usually entangled in a metal core, which produces a uniform volume of space in a magnetic field (some of which may be done) when the current passes through it. When solenoid is a type of electromagnet, its purpose is to produce a controlled magnetic field. If the purpose of the solenoid valve is to replace the current to suppress the change, the solenoid can be more specifically divided into an inductor rather than an electromagnet. Not all electromagnets and inductors; for example, the first electromagnet, invented in 1824, has a horseshoe shaped rather than a cylindrical solenoid shape.

A cylindrical solenoid

In engineering, the term can also refer to a device that converts a variety of energy into linear motion transducers. The term is also usually used to refer to a solenoid valve, which consists of an electromechanical solenoid valve for actuating or pneumatic or hydraulic valves or electromagnetic switches, which is a specific type of electrical solenoid used for a relay, operating an electrical switch with an integrated device; for example, starting a solenoid coil in a car, or an electric solenoid. A linear solenoid, which is an electromechanical solenoid valve.

Solenoids are widely used and solenoids are the core components of electromagnets. It is necessary to understand the knowledge of solenoid (electromagnetic coil).