Transient electromagnetic disturbance is more popularly known as EMP or Electro Magnetic Pulse. This is more of a short burst of electromagnetic energy which should not be taken lightly. The pulse has originated from natural occurrence and also, this can be manmade and might occur as an electric, radiated, conducted electric current or magnetic field all of which will depend on source.
The interference caused by EMP is usually disruptive or damaging to electronic devices and equipment. At higher energy levels, powerful EMPs similar to lightning strike is more than enough to lay destruction to physical objects like aircraft structures, buildings and so on. The management effect for EMP is vitally important branch of EMC or Electromagnetic compatibility engineering. The truth is, EMPs today are weaponized in order to deliver the damaging effect it has to enemies.
This is the time when Faraday cage was invented. It was actually named after Michael Faraday and it’s a type of device that’s intended to provide protection on electronic devices from any sort of electromagnetic radiation. The cage is working by layering both non conductive and conductive layers which creates a shielding effect for the items stored inside the cage and protecting it from radiation. To an average individual, this seems complicated by in reality, anyone can have a DIY Faraday cage with aluminum foil.
If you wish to learn how this can be done, then make sure that you follow the steps that are listed below:
Step number 1. Wrap your electronic device in plastic layer – wrap the device inside a plastic wrap or put it in the plastic bag. What this will do is establish a barrier between conductive aluminum layer and the device. Aside from protecting your device from EMP, this can protect it as well from water.
Step number 2. Cover every inch of your device with aluminum foil – the reason to why this must be done is that, aluminum foil serve as conducting layer. For this to be effective, there has to be no gaps or tears in the aluminum foil you are using. Preferably, make use of your hands in molding the foil around the device. This act as the first 3 layers of aluminum foil.
Step number 3. Alternate the aluminum foil and plastic – you need to cover every inch of the device with three layers of aluminum foil. In between layer, it is recommended to add plastic layer to be able to maximize the protection it makes. By doing so, it will be able to create alternating layer of both conductive and non-conductive materials and thus, protect your device from electromagnetic radiation.