When thinking about the testing process for electronic devices, there are two key terms to be familiar with: electromagnetic interference (EMI) and electromagnetic compatibility (EMC). There are numerous similarities between these two concepts, but it’s crucial to be aware of the differences as well. Understanding how these two terms differ from one another can better equip you to navigate the testing process from start to finish.

Once you know which test is most suitable for your needs, you can be better prepared to receive a seal of approval for your electronic device. Here are the main differences between EMI and EMC that are worth noting.

What Is EMI?

EMI describes the interference that is caused by an electromagnetic disturbance emitted from an electronic device. This disturbance can have a significant impact on the functioning of a device, preventing it from operating properly. There are various characteristics associated with electromagnetic interference, all of which depend on the source of the interference.

Common sources of EMI include solar radiation, electrical storms and other electronic devices or electrical systems. EMI can also be categorized based on where it originated and how it was made. These two categories include man-made EMI and naturally occurring EMI.

Man-made EMI refers to EMI that originated from other types of electronic devices or the switching of large currents. Naturally occurring EMI, on the other hand, indicates electromagnetic interference that originated from a wider range of sources. These may include cosmic noise, lightning discharge and other notable forms of atmospheric noise.

What Is EMC?

EMC measures an electronic product’s ability to operate the way it was intended to. A properly functioning device should be designed to run smoothly in its shared operating environment. In addition, EMC guidelines stipulate that the device should not prevent other types of equipment in the same environment from functioning correctly.

All types of electronic devices have the potential to pick up outside interference from other devices. This can negatively affect the performance of other electronic devices. As a result, it’s crucial to ensure that your product does not interfere with other circuits and that it does its job properly within its intended environment.

Ever since EMC was first introduced, its regulations have been tightened to ensure that electronic products are safe to use. Now, it is imperative for all electronic devices to function at their full capacity without interfering with other products. It’s important to ensure that you’re aware of all the rules and regulations for electromagnetic compatibility so that you can navigate the testing process as smoothly as possible.

Choosing the Right Test for Your Needs

When designing a product that’s slated to undergo testing, it’s vital to take both EMI and EMC into consideration. Both of these options have their own set of guidelines that must be followed carefully throughout the entire testing process. In addition, each test has a distinct purpose, and it’s crucial to choose the right option for your specific needs.

At Compliance Testing, we ensure that you’re fully prepared to submit your product for testing. Whether you opt for EMI or EMC, we offer accredited testing equipment to help you complete the testing process seamlessly and to confirm that your product is up to snuff. Reach out to us today to learn more about the services we offer.

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