How Solenoids Work
Generating a Controlled Magnetic FieldA solenoid is a device that creates electromagnetism after it has been electrified. Solenoids consists of a coil and a movable iron core called the armature. When current flows through a wire, a magnetic field is set up around the wire. If we make a coil of many turns of wire, this magnetic field becomes stronger, flowing around the coil and through its center in a doughnut shape.
Different systems need different types of solenoids. Jameco offers a variety of solenoids, which transform an electrical input signal into motion, in a range of sizes and voltages. There are many applications in today's industries where different magnetic fields, coils resistance and amps are needed. Solenoids valves are also common for pneumatic and hydraulic systems to control various mechanical actuators.
Made of solid state, durable materials, these solenoids, or actuators, are used in machine tools, industrial machinery, and computer parts like disk drives and printers. Available as open frame, tubular or pull-type models.
Image Credits: Geek3 - Own work, CC BY-SA 3.0