solenoideja

Solenoideja is a Finnish term referring to solenoids. A solenoid is a type of electromagnet made into a coil of wire. When an electric current is passed through the wire, it generates a magnetic field. This magnetic field can be used to move a movable ferromagnetic core, usually a plunger, inside the coil. The movement of the plunger can then be used to operate a mechanical device.

Solenoids are commonly used as simple linear actuators. They are often used in applications where a quick on-off action is required. Examples include locking mechanisms, valves, and relays. In a solenoid valve, the plunger moves to open or close a passageway for fluid or gas. In a relay, the solenoid's magnetic field activates a switch to control a separate electrical circuit. The force and stroke of a solenoid are dependent on its design, including the number of turns in the coil, the current flowing through it, and the properties of the core material. They are valued for their simplicity, reliability, and relatively low cost.