Magnetic shields contain magnetic interference from within or isolate interference from without. This is the simplest definition of the roles that magnetic shields play. Of course, this definition is insufficiently descriptive to give anyone a meaningful understanding of what magnetic shields do and how they do it. While a truly thorough understanding of the topic would have to involve a crash Continue reading
MuMetal image courtesy of Magnetic Shield Corp.
MuMetal’s the name. Low-frequency magnetic field attenuation’s the game. Whether it is needed for magnetoencephalography or for photomultiplication, MuMetal is an excellent magnetic shielding choice. Continue reading
EMI coating can be a lifesaver for industrial professionals and amateur hobbyists alike when it comes to inexpensively safeguarding sensitive electronic devices from electromagnetic interference. While it is possible to engineer integral EMI shields into an electronic device’s assembly, it can be simpler and less expensive to Continue reading
Before they begin their careers as electrical engineers, and probably even as early college students, designers of complex electronic devices are expected to develop a thorough understanding of the concepts of electricity, electromagnetism and all other related concepts within electrodynamics. They have to Continue reading
EMI-shielded expanded metal image courtesy of Dexmet Corporation.
Many people tend to stare down their food as it cooks in the microwave. At first glance it might seem like staring at a microwave from a short distance is not terribly smart behavior. After all, the process involves using microwave radiation to heat objects. Rest assured, though; microwave ovens pose Continue reading
My parents exposed my brothers and me to music when we were very young. For some reason, my dad let me play around with his electric guitar and amplifier. When I got bored with that, I’d pull the cable out of the guitar and press my finger to the tip of the cable, which caused the amp to make a loud, intensely annoying buzzing sound. I later discovered that the buzzing sound was caused by Continue reading
EMI gaskets image courtesy of Sealing Devices, Inc.
If asked to think of the five most common electronic components regularly put to use in industrial electronic devices, things like circuits, wiring, transistors and insulation would be likely to make the list. EMI gaskets? Less likely. Gaskets seem to be more commonly associated with things like Continue reading
EMI shields image courtesy of Compac Development Corporation.
It’s not a mistake to think of EMI shields as analogies to the hand-held shields used in combat centuries ago. While the nature of the threats they counter could not be more different, the means by which they provide protection are identical. Think, for example, of the kind of waves of arrows you’ve seen in Continue reading
Shielding tape image courtesy of Intermark USA.
Consumers have come to expect their electronic devices to work without interruption or incident, and quickly. Gone are the days of dad climbing up onto the roof to adjust the TV antenna, as are the days of unreliable dial-up Internet connections and asking the operator to connect our phone calls. Electronics continue to Continue reading
EMI-shielded filters image courtesy of Spira Manufacturing.
Enter “EMF protection” into Google, and you’re likely to see something you’re not looking for. If you’re a professional looking for a material that you can use to shield a product from electromagnetic interference, you’d probably be surprised by Continue reading