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Radio frequency interference (RFI) and electromagnetic interference (EMI) are known as the two most common forms of interference. RFI is the interference produced by a signal that was generated by some form of outside noise source such as a cellular phone tower, power lines, power lines, or other outside noise source. EMI is the interference produced by a signal that was generated by inside noise source such as computers, television sets, or refrigerators. In either case, the interference can cause interference with other radio signals or electronics.

To prevent the interference, businesses and homeowners have developed several technological solutions. Contact, fingerstock and gasket are some of the most innovative ones.

Contacts, Fingerstock and Gaskets

Contacts, fingerstock and gasket are the three main electromagnetic interference (EMI) shielding materials. It is important to understand the differences between the different materials to ensure that they are used in the most effective way. Contact materials are typically used for direct contact with a high frequency source, whereas fingerstock and gasket materials are used for covering surfaces, creating edges and forming barriers.

Contact materials are designed to provide the most effective protection against RFI and EMI because they provide a direct contact between the high frequency source and the shield surface. These materials are typically constructed from metallic components such as foil, tin-plated brass or stainless steel. The materials are available in sheet or wire form and are designed to provide direct contact between the source of interference and the shield.

Fingerstock and gasket materials are designed to create a barrier between the source of interference and the surrounding environment. These materials are typically constructed from flexible metallic foams, such as nickel, stainless steel or tin-plated brass. The metallic foams are designed to create a coverage or “cage” around the source of interference, which works to reduce and block the interference. Fingerstock and gasket materials are also designed to form a flexible, uniform and reliable seal that can be compressed to insure a secure and impermeable barrier around the source of interference.

Fingerstock and gasket materials are essential components of any EMI shielding system. They are designed to create a physical separation between the source of interference and the surrounding environment. The high frequency source is often contained in an electronic device, such as a computer or television, and the fingerstock or gasket material will create a barrier between the high frequency source and the contents of the device. This ensures that the high frequency energy does not leave the device and does not affect the surrounding environment.

RFI and EMI shielding solutions are essential for businesses and homeowners alike. Contact, fingerstock and gasket materials are designed to provide effective EMI and RFI shielding solutions. By understanding the differences between the different materials it is possible to ensure that they are used in the most effective way.

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