Demystifying EMC Testing: All about Keeping Electronics in Order

Electromagnetic Compatibility or EMC testing is all about or defined as the ability of an electrical and electronic product to bear a certain degree of electromagnetic disturbance (EMI) from the nearby electronic device(s) and not emit more than a specified amount of electromagnetic interference (EMI).


EMC Testing


EMC testing assesses and evaluates whether the product meets the requirements of EMC emission and immunity standards. When a product complies with the requirements of these EMC standards, the product is considered to be aEMC certified product (i.e., withstand EMI from nearby devices and operate properly, and not emit more than a specified level of EMI) and can sell in the market.This testing is defined as the performance of testing regimens which may help evaluate the levels of EM radiation from and to your board to determine the effect on the performance of your board, and potential impact on electronics in the surrounding environment.


Why Test for EMC?

There are a number of good reasons why your board should undergo testing for EMC, including the following:-


Safety

The prevailing motivation for EMC testing is to ensure the safety of users and operators of the electronic equipment and systems of which your boards are a part.


Reliability

In addition to safety, boards should be tested to find out whether they will function as designed and meet their operational objectives within their deployment environment.


Regulations and Standards

Just in case the two reasons listed above do not provide the necessary motivation to perform EMC testing, then the fact that most EMC testing is mandatory and defined by one of many standards. From a regulatory perspective, only applicable testing must be done to avoid sanction(s) for noncompliance. Applicability may be determined by manufacturer location, end-user geolocation or industry for which the board is made.


After the testing is done, the results are verified, analysed to determine if the product meets the necessary EMC standards. If the product is not meeting or aligned to the right standards, the manufacturer may need to make changes or modifications to improve its EMC performance. The testing ensures the product complies with the right and standard EMC protocols/standards.

Location: India

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