EMF Shielding: All You Need To Know
Government and individuals have continued to express worry on the impact of electromagnetic fields radiation on health and the environment. Products that will help you reduce exposure to EMFs are in the market. However, EMF shielding is the best. Why others may be complicated and difficult to figure out, EMF shielding has been proven to be easy and is simple to understand.
What is EMF shielding?
This is a means by which Electromagnetic Fields are reduced in a space by using barriers designed of conductive or magnetic materials to block the field. Usually, shielding is applied to separate electrical devices from their environment using enclosures and to separate wires from their surroundings via cables. For instance, EMF shielding that obstructs radio frequency (RF) electromagnetic radiation is also known as RF shielding, and it can lower the coupling of radio waves, electrostatic fields, and electromagnetic fields.
EMF Shielding has been around for over two hundred years since the time of Michael Faraday, who invented the Faraday cage named after him in 1836. These cages are enclosures designed to block electric charges. Faraday cages can block large amounts of electromagnetic field radiation. Since its invention, Faraday cages have been used to safeguard electrical equipment from EMF effects as you can check on the link.
What Materials Are Used For EMF Shielding?
Over the years, EMF shielding has evolved greatly. Thus, today you will find shielding in different types including films, fabrics, and even plastics. However, EMF shielding is typically made from metal; sheet metal, metal foam, and metal screen. The material; its size, thickness, shielded volume, shape, and orientation of apertures, determine the amount of EMF reduction in a field.
The effectiveness of shielding depends on the physical properties of the metals used for shielding. The effectiveness which is how well a shield absorbs or suppresses electromagnetic radiation includes thickness, conductivity, permeability, weight, and solderability. To select a material for shielding, the properties of the metal should be put into consideration. For instance, Highly conductive metals like silver, brass, and copper, reflect electrically dominant waves while steel or stainless steel absorb or suppress magnetically dominant waves. Brass, Copper, Steel, Silver, Tin, and Nickle Common are common sheet metals for shielding.
On the other hand, there is another method of EMF shielding commonly used especially with electronic goods housed in plastic enclosures. Under this method, the inside of the enclosure is coated with metallic ink or similar material. This ink contains a carrier material filled with an appropriate metal, usually nickel or copper, in the form of very small particulates. When sprayed in the enclosure, it produces a continuous conductive layer of metal once dry. This conductive metal layer can be connected electrically to the chassis bottom of the equipment and provides effective shielding.
Without the use of EMF shielding, safety cannot be guaranteed. Lives will be exposed to the great danger of electric shock. So shielding are a great way of reducing exposure and dangers from EMF radiations. The good thing is that these shielding are being adopted by every manufacturer.
Why EMF Shielding?
EMF Shielding is very important, it reduces the rate of exposure to both low frequency and high-frequency emf radiation. It helps to protect you from the impact of electromagnetic fields radiation since the use of modern electronic devices is geometrically increasing daily. There are several EMF radiation blockers you can use to block yourself from EMF radiation of your electronics gadgets such as Anti Radiation Laptop Computer Pad & EMF Blocker Lap Lapdesk can check it out.
