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Electric solenoids may not seem like a commonly heard term but it is simply an electromagnetic device that is used in a number of machines. A solenoid is a length of wire, through which electricity passes. It is typically a wire wrapped around a metal and basically what makes a magnetic field. As electricity passes through the wire, the magnetic field activates, and this can be used to manipulate the motion of the different components of a machine. This is extremely crucial to making machines operate seamlessly.
Electric solenoids are commonly used as sensors (e.g., to sense switch signals for on-off) in machines. Here the magnetic field produced by the solenoid tried to exert a force when electricity is passed through it. This creates a force that can either attract a rod (called a plunger) towards the centre of the coil, or repel it. The movement is extremely useful as it is used to control the flow of fluid/gas, or, in some cases, it acts as an actuator that drives a machine part to perform a useful work.
A good example is an electric lock on a door. A solenoid moves a bolt that either locks (or unlocks the door). As you insert and turn the key, electric current travels to the solenoid, engaging a magnetic force that moves the bolt to lock or unlock the door. Electric locks secure your house and your property in this manner.
Similarly solenoids in a car engine serve a very crucial role. They can also regulate the amount of air and fuel that goes into the engine cylinders, required for the engine to work properly. Also, solenoids can also change gears in an automatic car to make it easy and fast for the car to change the speeds without even the need of the driver.
With ever advancing technology, electric actuators are gaining new and interesting applications. In the field of medicine, for example, solenoids are used in medical devices for the treatment of patients such as pacemakers, which help people with cardiac problems, and insulin pumps that help people who suffer from diabetes mellitus. Such devices are extremely critical to basically maintain well-being in individuals.
Of course, solenoids are also employed in the entertainment industry to produce special effects. These can operate moving platforms found on theme parks or allow animatronic figures to move and perform during shows. This makes for a much more fun and exciting experience for all.
Huagong is a well-known electric solenoid manufacturer that offers firm and resilient components. Their team of experts boasts an industry experience of 20+ years and strives to create unique and innovative solutions to cater to customer needs. They are committed to ensuring that their products are both high quality & effective.
