0077004317

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Radio frequency interference (RFI) and electromagnetic interference (EMI) are common forms of energy that interfere with the proper functioning of everyday electronic devices. RFI and EMI are caused by electromagnetic fields generated by electric motors, transformers, switches, and even radio and TV broadcasts. While these fields are usually present and not noticed, they can cause interference in the functioning of electronic devices. To combat this, manufacturers often employ technologies to reduce their effects.

One such technology is the use of contacts, fingerstock, and gaskets to shield against RFI and EMI. Contacts, also known as contact points, are essentially electrical connections between two components or layers. When a current is applied, the contact generates a field that can reduce the effects of interference. The contact material itself absorbs or reflects a portion of the incoming electromagnetic wave(s). By selecting the type of contact, manufacturers can achieve effective shielding.

Fingerstock, meanwhile, is a flexible material used to provide better shielding against EMI. It is a thin material, usually made of a metal foil such as aluminum or silver, which is folded into a three-dimensional structure and then applied around components or areas that are subject to interference. Fingerstock is effective in shielding against both RFI and EMI by reflecting and dissipating the energy. As a result, it is often used in areas prone to heavy interference, such as industrial or military environments.

The use of gaskets is another method used to shield against RFI and EMI. Gaskets are typically constructed using an elastomeric material, such as rubber, silicone, or polyurethane, and are designed to be sealed around an electronic component or system. The elastomeric material absorbs and dissipates a significant portion of the incoming electromagnetic wave(s), preventing them from entering the component or system.

The 0077004317 application field and working principle are quite extensive. Contacts, fingerstock, and gaskets used together are effective in providing shielding against RFI and EMI, thus preventing interference caused by electromagnetic waves or fields. By combining these materials in the proper way, manufacturers are able to create a barrier that prevents interference and protects the equipment from damage.

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