Apr 22 2011
Fascinating Facts About Magnetic Field Coils
Magnetic field coils are based upon very basic scientific principles. A thin long wire is wrapped around a metal rod very tightly and a magnetic field is subsequently produced when electric current is passed through it. It is possible to control this field to a high degree. This technology is very important and is used in many different ways. Electrical engineers make extensive use of these principles when designing new systems.
Among the many reasons why solenoids are so popular is the fact that they contain very few moving parts. They therefore require very little maintenance and they are extremely reliable. They are mostly silent and the can be very powerful compared with their physical size. Solenoids last for a very long time and use very little electricity.
Many of the appliances that we use from day to day use solenoids. In side by side refrigerators, they are employed to minimize power consumption by opening and closing a damper between them, allowing for colder air to flow to warmer areas. They are also used to actuate valves in washing machines and dishwashers. They are even used to lock oven doors.
This technology is particularly prevalent in the security industry. In many instances mechanical locks have been replaced by electromagnetic versions. This provides better access control. Many other devices, such as vending machines and electricity meters can be made tamper proof by the use of this technology. Many home alarm systems also use solenoids extensively.
Another industry that has found this technology indispensable is the food and beverage field. High speed food processing plants actually use razor thin jets of water to cut poultry and fish. This process is controlled by solenoids that ensure that there is minimum waste and that portions are precisely controlled. Most vending machines and beverage dispensers also use these techniques to ensure accurate volumes.
Many devices and systems in the medical field are totally dependent upon this technology. Pharmaceutical dispensing systems make extensive use of solenoids in order to ensure precise measuring. Most modern sterilization systems are electronic and also use solenoids. Most machines that are used for blood analysis, dialysis and breathing cannot possible function without the use of this amazingly simple technology.
There are many other applications for solenoids. It is clear that this technology is incredibly versatile and that it is used in just about every imaginable field. Magnetic field coils may be a simple concept but it has proved to be so versatile that it now forms an integral part of all the aspects of our daily lives.
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