Why Should You Care About EMC Testing? - The ABCs of EMC (E01)
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- čas přidán 5. 08. 2024
- Learn what EMC is and why it matters for all electronic devices.
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Transcript:
There are several types of interference, and they all have the potential to disrupt our electronic devices. Interference can come from a variety of sources that may cause undesired effects such as electromagnetic interference or EMI; or even physical damage to your device.
Therefore, not only is it imperative to test for electromagnetic emissions coming from your device, but it is also required that all electronic devices/ meet electromagnetic compatibility standards set by local regulators. Today, we’ll discuss the fundamentals of electromagnetic compatibility testing/ and why its as important as your ABC's.
Electromagnetic compatibility, or EMC, is the branch of electronics concerned with the unintentional generation, propagation, and reception of electromagnetic energy. EMC testing is the analysis of the interaction of electrical equipment with its electromagnetic environment. Emissions and immunity testing measure the propagation and reception of electromagnetic energy.
When testing for emissions, you're measuring the electromagnetic energy strength of the emissions that your device is outputting. On the other hand, when testing for immunity, you are concerned with your device’s susceptibility to emissions from other surrounding devices.
All electronic devices have the potential to emit electromagnetic energy; however, this only becomes a problem if your device’s emissions are higher than what is deemed acceptable according to standards set by your local regulator. Since electronic signals are everywhere and can impact the way your device operates, standards set by organizations, like CISPR, ensure that all devices work in harmony. To be sure of this, every electronic device must go through compliance testing in order to measure for unexpected emissions.
Compliance testing ensures the safe and reliable operation of electronic devices. Compliance measurements are determined by standards that vary slightly by country. CISPR’s standards specify equipment and methods for measuring interference and immunity requirements for compliance testing.
CISPR also considers the impact of safety regulations on interference suppression of electrical equipment. These not only protect the device being tested, but also other devices near it.
Compliance testing is a formal process that your device must successfully pass at a certified test house in order to be brought to market.
If you wait until the end of your product development cycle for formal compliance testing and don’t do any compliance testing of your own, this could cause a couple problems. The first of which is most painful: cost.
You need a significant budget to go through formal compliance testing at a test house. So, if you don't pass formal compliance testing, you not only lose money due to the cost of reserving time in a compliance test lab, but you might need to make costly revisions to your device so it will end up passing the formal compliance test.
Another reason why you should do compliance testing on your own is time. If your device doesn't pass the formal compliance test at a certified test house then you'll have to revise your device so it does pass. To mitigate this risk, many companies perform in-house compliance tests, also known as - pre-compliance tests.
Pre-Compliance testing is a low-risk, cost effective method to ensure your device passes final compliance testing, which will allow your product to enter the market. Pre-compliance testing is your own in-house compliance test that will help ensure that your device will pass at a formal compliance test lab.
Formal compliance testing requires a very expensive set up using an anechoic chamber and a directional antenna. Since this isn’t feasible for many companies - because they aren’t running EMC compliance tests all the time - these dedicated set-ups are normally only found at certified test houses.
You don’t need a crazy, expensive set up to know if your device will pass compliance tests. You can create your own pre-compliance test, set-up in a lab space using just a few pieces of equipment.
All you need for pre-compliance testing is a signal analyzer with EMC pre-compliance software, a signal generator, a set of antennas, and a set of near field probes.
See you next time. - Věda a technologie
This is a great start, and I look forward to the rest of the series!
Thanks!
I appreciate all the educational content this channel is putting out lately. It's great!
Very intristing video. GOOD JOB BROO.
as a ham radio guy, everyone, please make monitors that are better in this regard!
Thank you! more about this subject would be appreciated!
Definitely! We'll be more hands-on in future episodes.
I appreciate your efforts for giving us this content, I wanna ask if you can talk a little bit about the EMC between devices and the steps to follow to approve the confirmation for these devices to work in the same environment.
Looking forward to the rest of the videos on this topic. Our next product release will be forced into CISPR compliance and I am quite intimidated by the process and cost.
i guess Im asking the wrong place but does any of you know a tool to get back into an instagram account..?
I was dumb forgot my login password. I would appreciate any help you can give me
@Alec Tony instablaster :)
@Brixton Desmond I really appreciate your reply. I got to the site on google and Im trying it out now.
Takes a while so I will get back to you later with my results.
@Brixton Desmond It worked and I finally got access to my account again. I'm so happy:D
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@Alec Tony no problem xD
Near field probes! Their cost makes me a sad panda :(
Kind of robotic speech but interesting information.:)
I thought they might zoom in to his mustache.
It is indeed a missed opportunity
@@KeysightLabs 😂😂
stop the music not only it is a bad choice but it causes emi interferences with the information
Blah blah blah. So much repetition