Electricity is an important topic in education. However, basic education does not adequately cover the all important concept of EMI shielding. With many applications in industry, its theoretical bit is only fully covered in science oriented courses offered in higher learning.
Areas that have large numbers of communication masts are always bound to have electromagnetic waves. When in the air, the waves may interfere with a wide range of electronic equipment. The disturbance occasioned by the waves is commonly known as electromagnetic interference.
Some companies have a specialty in manufacturing shields that help lock out disruptive waves from equipment. Many technological products rely on this type of protection to function correctly. Among the areas that manufacturers like to keep an eye on is the transmission equipment for electronic media. These days, television cables come with shields that help prevent the possibility of interference through radiation.
Without a shield, your TV set would not display clear pictures all the time. Its application goes as far as in the medical sector. Modern electronic machines used in hospitals ought to function without any disruption as it could be the difference between life and death.
Metal is the primary material used when making shields. A protective edge may be made using sheet metal, metal foam or a metal screen. Technically, a protective mesh should have holes that are smaller in size than the wavelength of an interfering wave. Large holes may permit the passage of smaller disruptive waves, thereby causing equipment malfunction.
These days, almost all electronic products are enclosed in plastic. Whereas plastic can allow radiation to pass through, the ones used in electronics are usually coated with metallic ink on the inside. Nickel and copper are the most used metals for this purpose. To provide an even coating for conduction, they are usually broken down into small particles before being sprayed on the plastic.
Another great application of the concept can be found in microwaves. Their doors have protective screens built around the window. Microwaves typically have wavelengths of 12 centimeters. By applying Faradays law, the protective screen and metal encasing in a microwave confines the dangerous rays within its enclosure and at the same time keeps interference out.
When transmitting radio waves, protective technology ensures there is no loss of sensitive data from chips. Most biometric passports use chips to store data. With identity theft a major issue, protection is a major concern for authorities.
The loss of data is also a great concern when it comes to using computers. Intruders often target weakly protected computers while on the prowl for sensitive information. However, keyboard shields are known to prevent data from being passively emitted when keyed in using keyboards. As a result of the high price of implementing the technology, it is often confined to the military.
There are many companies specializing in the manufacture of protective equipment. Most of them feature their products online. You should be able to find a solution that works for your company or household if you are a homeowner.
Areas that have large numbers of communication masts are always bound to have electromagnetic waves. When in the air, the waves may interfere with a wide range of electronic equipment. The disturbance occasioned by the waves is commonly known as electromagnetic interference.
Some companies have a specialty in manufacturing shields that help lock out disruptive waves from equipment. Many technological products rely on this type of protection to function correctly. Among the areas that manufacturers like to keep an eye on is the transmission equipment for electronic media. These days, television cables come with shields that help prevent the possibility of interference through radiation.
Without a shield, your TV set would not display clear pictures all the time. Its application goes as far as in the medical sector. Modern electronic machines used in hospitals ought to function without any disruption as it could be the difference between life and death.
Metal is the primary material used when making shields. A protective edge may be made using sheet metal, metal foam or a metal screen. Technically, a protective mesh should have holes that are smaller in size than the wavelength of an interfering wave. Large holes may permit the passage of smaller disruptive waves, thereby causing equipment malfunction.
These days, almost all electronic products are enclosed in plastic. Whereas plastic can allow radiation to pass through, the ones used in electronics are usually coated with metallic ink on the inside. Nickel and copper are the most used metals for this purpose. To provide an even coating for conduction, they are usually broken down into small particles before being sprayed on the plastic.
Another great application of the concept can be found in microwaves. Their doors have protective screens built around the window. Microwaves typically have wavelengths of 12 centimeters. By applying Faradays law, the protective screen and metal encasing in a microwave confines the dangerous rays within its enclosure and at the same time keeps interference out.
When transmitting radio waves, protective technology ensures there is no loss of sensitive data from chips. Most biometric passports use chips to store data. With identity theft a major issue, protection is a major concern for authorities.
The loss of data is also a great concern when it comes to using computers. Intruders often target weakly protected computers while on the prowl for sensitive information. However, keyboard shields are known to prevent data from being passively emitted when keyed in using keyboards. As a result of the high price of implementing the technology, it is often confined to the military.
There are many companies specializing in the manufacture of protective equipment. Most of them feature their products online. You should be able to find a solution that works for your company or household if you are a homeowner.
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