Electromagnetic Interference

As the density of electronic devices on the market increases, the amount of electromagnetic interference proportionally rises. Electromagnetic interference is a common problem that intervenes with the performance of electronic devices. This radiation has the capacity to disturb electronic components and can be either artificially or naturally produced.

The most common product on the market for controlling EMI/RFI is shielding gaskets. They may be referred to as RFI shields as well as EMI shields.

EMI occurs naturally in nature. Two common examples of EMI radiation are caused from solar flares and the aurora borealis. These phenomena cause radiation that inhibits with electronic components and devices. People with radios often experience technical difficulties and malfunctions in the presence of solar activity. Satellites and aircrafts can also have a decline in function due to the presence of natural EMI.

Inorganically produced EMI is typically caused by electronic devices. The interference can be minimal, and only cause small lines on a television, cell phone interference, and baby monitor disturbance. No matter the severity, all electronic device manufactures are obligated to conform with regulations, in order to prevent EMI.  These protective measures usually include shielding the electronic components with a shielding gasket. These shields keep the interference isolated and do not let EMI leak out.  

Some military sectors deliberately generate interference as a tactical weapon.  A strong pulse of EMI is able to jam radios and signals, leaving the enemy with inadequate communication avenues. Criminals and terrorists also build EMI jammers to block the signals of protective electronic devices, such as alarms or cameras.

Different sources of EMI have varying effects. Some are more significant than others, and can have serious ramifications, while others are less insidious. Ambient EMI disturbs sensitive electronic equipment within close proximity. The closer the susceptible component is to the EMI, the more it is disrupted. 

Another source of EMI is the result of high-powered electromagnetic pulse effects. These pulse effects can be incredibly strong, and have the capacity to fry electronic equipment entirely.

Railroad and Mass transit systems can also produce EMI via their engine propulsion system.

EMI RFI Shielding

As new devices enter the marketplace, it is important to shield components from new sources of EMI. If you need more information on EMI, its sources, or shielding gaskets, it is wise to contact a local manufacture with more questions. A professional in the shielding gasket field is capable of explaining the nuisances of gaskets, devices, and EMI. EMI radiation is serious, and proper shielding is necessary, in order to limit danger.

• Purpose of EMI/RFI Shielding Gaskets
  Electronic devices have the ability to emit EMI/RFI waves that negatively affects other circuits within a devices as well as devices nearby.
• EMI is?
• Conductive Rubber and EMI
• Shielding Theory