CaTV | The Electromagnetic Interference

 

Photo Credits | Freepik

Electromagnetic interference (EMI) is a phenomenon that occurs when the operation of an electronic device is disturbed by an electromagnetic (EM) field and typically occurs when the device is close to an EM field, which disrupts the radio frequency spectrum. EMI is a common issue for electronic components used in various industries, such as military, defense, communication systems, appliances, and aerospace.

Electrical noise, also known as electromagnetic interference (EMI), can destroy a clean signal from your measurement instrumentation (such as level sensors and pressure transducers). Protecting your sensors from electrical noise is a top priority. Luckily, this is a fairly simple task in most cases.

Also known as radio frequency interference, EMI can adversely impact electronics, causing them to operate poorly, malfunction, or stop working completely.

There are three different methods to help reduce or eliminate EMI - filtering, grounding, and shielding. A direct way to get rid of unwanted signals is through filtering them out, and in this instance, passive filters work well, and they're used in most new equipment to minimize EMI. You need to use properly shielded wire, you must be careful when routing your cables, and your sensors need to be grounded properly. Finally, it's important that the signal output is appropriate for the electrical environment.

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