Here’s a quick look at how testing works.Įlectronic devices must pass formal testing by an accredited EMC testing lab. Local standards are usually based on these and the CISPR standards. In the US, standards are governed by the American National Standards Institute (ANSI), Department of Defense (DoD), Federal Communications Commission (FCC), Radio Technical Commission for Aeronautics (RTCA), and the Society of Automotive Engineers (SAE). There are different tests and standards based on the type of product/device and whether it’s intended for residential or industrial use. Definitions, tests, and standards are developed by two bodies within the International Electrotechnical Commission (IEC): Technical Committee 77 and the International Special Committee on Radio Interference (CISPR). All new electronic devices must pass EMC tests in order to be brought to market.ĮMC includes international, national, and local standards. Testing also indicates if a device is susceptible to radiated or conducted emissions from neighboring devices. In general, testing verifies if a device falls within acceptable frequency ranges and meets limits on amounts of radiation emitted. OEMs and their suppliers need to design and test electronics for electromagnetic compatibility (EMC). malfunctioning aircraft controls or electronic breaking signals). static on the radio) to life-threatening (e.g. The effects of interference range from annoying (e.g. Electronic devices can impact how nearby devices function and they can be susceptible to emissions from other neighboring devices. Electromagnetic and radio frequency interference shielding is concerned with the “noise” and electromagnetic emissions from signals and currents inside electronic devices.
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