What are the different types of electromagnetic equipment?
The term electromagnetic device concerns any item that is powered by electromagnetic fields, produces electricity using magnetic fields or is magnetized by electricity. Electromagnetic fields are classified as electric motors or solenoids. Electric generators and alternators are electromagnetic devices that produce electricity using magnetic fields. Electromagnets and electromagnetic coils form a third group of electromagnetic devices. The motor uses an electric current to generate magnetic fields inside the windings to turn the engine shaft on its axis. Solenoid only works in two directions of movement. When the solenoid winding is electrically charged, the shaft moves either inside or from the coil, depending on the magnetic orientation of the shaft. In some cases, spring can be assisted.
An interesting example of solenoid in action is an electromagnetic projectile device. After the power supply they create coilsThis device high magnetic pressure on the magnetized shaft and push it out of the coil. The shaft of this electromagnetic device is not strapped and can therefore be excluded from the coil at high speed.
Another application of solenoid is its use in the operation of timed locking mechanisms for high security areas such as bank safes. When these solenoids receive strength, the shaft remains in the coils. When the timer cuts the power supply to the coils, the spring pushes the shaft out of the coil and into the locking position.
Another group of electromagnetic devices includes those that create electricity from magnetic currents. The simplest form of an alternator or generator is actually an electric motor. The wiring rotates manually instead of using the battery to power the engine. The alternator is distinguishable from the generator only by its movable part and electric output. Alternators createAC current (AC) by moving spinning magnets around coils. Generators produce a direct current (DC) by rotating wire coils instead of magnets.
The third group of devices that bear the name Electromagnet contains any item that is magnetized by electricity. Thus, the wire coils of the electric motor and the generator can be separately under the name of the electromagnetic device on their own merit. Other devices that fit into this category are large electromagnets used in automotive rescue and electromagnetic coils used in the ignition systems of some cars.
In some cases, electromagnetic devices are used as part of a safety device such as security sensors. In the case of a safety alarm sensor, an electromagnetic device is kept with a wire coil or permanent magnet. When these two items are kept within reach, the perimeter remains open and the sounds of the alarm. When it is moved isDNA of two items, generates a change in an electromagnetic field and closes the alarm.