EMC shielding
What are the main sources of EMC problems?
In all cases there has to be a source and a victim for a path to exist thereby permitting a radiated or conducted coupling. RF Interface (sometimes referred to as RFI), more correctly known as Electromagnetic interface (EMI), results from the operation of electrical or electronic devices involving rapidly changing voltage or current levels and which cause the generation of electromagnetic energy at discrete frequencies and over frequency bands.
Discounting natural sources such as atmospherics or lighting, conduction and radiation emitting sources include;
Discounting natural sources such as atmospherics or lighting, conduction and radiation emitting sources include;
- Radar and communications transmitters
- Receiver local oscillators
- Computer and their peripherals
- Motors and switches
- Power lines
- Fluorescent lights
- Arc welders
- and many more…
- Nolato PPT
- EMC products
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How can EMI be contained?
In simple terms, most ‘shielding’ problems could be solved by welding the equipment into seamless steel box. The problems that this would lead to are obvious, access would be impossible, power unavailable, visibility would be zero and the equipment would rapidly overheat.
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Why must we achieve EMC?
Other than the fact that products which do not comply cannot be marketed legally in the EC, more disruptive manifestations would exist that could affect the very manner in which we lead out lives.
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Nolato's Trishield RTV: Revolutionizing EMI Shielding
Nolato's new Trishield RTV technology sets a new standard in EMI shielding. With room temperature vulcanization, it offers high shielding effectiveness and strong mechanical performance, making it ideal for heat-sensitive materials like plastic and magnesium.