Faraday Cage
Faraday cage is a structure used to neutralize electromagnetic waves entering electromagnetic fields. It was invented by British physicist Michael Faraday in 1836. A Faraday cage is created using a conductive material and is usually designed as a metal cage or box. This structure allows electromagnetic radiation in and prevents it from spreading outside.
Faraday Cage: A Perfect Shield Against Electromagnetic Radiation
Entrance
Electromagnetic radiation has become a part of our daily life. Wireless communications, television broadcasts, microwave ovens and many other technological devices use electromagnetic waves. However, to prevent these waves from sometimes leaking into unwanted places or affecting the operation of a device, the Faraday cage comes into play.
What is a Faraday Cage?
A Faraday cage is a structure designed to block or limit electromagnetic fields. This structure, discovered by British physicist Michael Faraday, is generally made of conductive materials and does not allow electromagnetic waves to penetrate. The Faraday cage tightly traps electromagnetic radiation and protects the objects inside from this radiation.
Principles of the Faraday Cage
The working principle of the Faraday cage is that the waves entering the electromagnetic field are absorbed and dispersed by the electrons circulating freely on the conductive surfaces of the cage. This distribution prevents electromagnetic waves from outside from entering. The electrons in the cage act as a kind of "shield" in neutralizing waves coming from outside.
Faraday Cage Applications
The Faraday cage has many practical applications. It is especially frequently used in the following areas:
- Electromagnetic Compatibility (EMC): It is used to ensure that electronic devices operate in harmony with each other and their environment. Electromagnetic interactions of devices are measured using Faraday cages in EMC test chambers.
- Protection from Electromagnetic Radiation: It is used to protect from the harmful effects of radio frequencies, microwave radiation and other electromagnetic waves.
- Information Security: To prevent interception by electromagnetic radiation, computer rooms and important data centers may use Faraday cages.
Conclusion
Faraday cage is an effective solution to protect and control electromagnetic radiation. This simple but powerful structure, discovered by Michael Faraday in the 19th century, plays an important role in many technological applications today. Faraday cage has become an indispensable part of modern life in areas such as electronic devices, information security and radiation control.
