Honeywell by the Letters - EMC

July 21, 2016 | Author: Jennifer Spantak


EMC compliance is a mandatory requirement in most markets including Europe, the U.S., China, Korea, Australia and New Zealand? But, what’s exactly EMC testing and why is it so important to Honeywell? EMC testing is the process of making sure products can survive in a high electromagnetic environment.

For Honeywell Aerospace, this testing is crucial because it ensures an airplane can still fly when you bust out your cell phone or laptop during a flight. It also make sure an airplane can still function if it flies in front of a radar transmitter, because it makes sure the electromagnetic waves that our cell phones and other technologies are putting off won’t interfere with the technology being used to keep the plane in the air. And that’s not all; EMC testing is also used to make sure Honeywell products can withstand a lightning strike.

There’s two ways of doing this. The first is by using a specialized room called an anechoic chamber, which is a steel room lined with a series of cones and ferrite tiles to keep outside energy out and radio frequency waves from bouncing around inside the room. This room is similar to an acoustic room and allows for a controlled environment. Scientists and engineers can then send high amounts of electromagnetic energy into the room to see if Honeywell products can function under extreme circumstances.

Another type of EMC testing is called High Intensity Radiated Fields or HIRF. It takes places in a copper lined reverberation chamber, which exposes the product to an even higher level of electromagnetic waves. This happens, because the copper and the stirring blade allows the energy waves to bounce all over; essentially saturating the product and interface cabling being tested.

It’s difficult to perfectly design a product that will function under such extreme electromagnetic conditions, because even the smallest design changes can have a huge impact, that’s why testing is so important.

Jennifer Spantak

Jennifer Spantak

Senior Communications Specialist, Honeywell Aerospace.