Christian Brull EMI gaskets are conductive hardware designed to conform to joint surface and provide a low impedance path. Compressed between two metal flanges, the gasket presents a complex impedance with resistive, inductive and capacitive properties. This will vary with frequency, materials, compression rate, geometry of the joint, etc. In the meantime, major differences … [Read more...]
What is an EMC Design Review?
What is an EMC Design Review?Most hardware engineers are used to doing functional design reviews on their circuit boards and systems before pressing the 'go' button for manufacturing. In the engineering teams I've worked with, that type of design review has usually taken the form of standing around a board room table with a red pen and the largest print outs of the schematics … [Read more...]
The Diagnosis of Under-Performing Semi-Anechoic Chamber Designs
As mentioned in the upcoming article ‘Applying Stealth Technology to EMC Chamber Designs’, and also mentioned during the recent EMC-LIVE webinar ‘Elephants in the TestRoom,’ the intention is to use 3D EM simulation software to explore possible design improvements to today’s under- performing chambers. The article itself is not out yet, but we can make useful progress in the … [Read more...]
Elephants in the Test Room Roundtable Commentary 1
On Thursday, Oct. 16, Interference Technology hosted a roundtable during EMC Live - 'Elephants in the Test Room' based on our blog series. Below is additional commentary about testing issues, from our expert panel.PanelTom Mullineaux - Moderator, Consultant and Author Patrick Andre - President, André Consulting, Inc.Fin O'Connor - Defense and Space Consultant and Contractor, … [Read more...]
Continuation of the Annual IEEE EMC Show in Dresden, Plus Updates on Other Topics
Welcome back. Before we get started - two updates:-3D EM Software Analysis of the Automotive Emissions Test FixtureThe tutorials in the handbooks are completed (there are quite a few because there is an entire suite of analysis tools). Also done are the ones that are downloaded with the software. With all tutorials, a lot of time is devoted to constructing the models to be … [Read more...]
The Annual IEEE EMC Show in Dresden, Plus Elephant #4 ‘The Zip Code Lottery in Achieving Product Compliance’
Hurrah!! The 3D EM software has arrived and I have started to familiarize myself with it. I am going to enjoy this. Reading through the features, it is extremely powerful and looks perfectly suited to simulating the automotive test fixture. It always seems to take me about 40 hours at the keyboard to get up to speed with a new software package, so it will be a while. Meantime … [Read more...]
EMP Protecting Housing and Solar Rooftops
Don White Consultant EMP Solutions This article presents some methods of EMP (electromagnetic pulse) protection for facilities. The EMC (electromagnetic compatibility) community provides most of the products and know how for structure shielding, bonding and grounding, plus cabling and connector surge suppression along with filtering. They also provide the service for on-site … [Read more...]
New EU Requirements and Test Methods for 2.4 GHz ISM Data Transmission Equipment
David Zhang, Nima Molaei, Leslie Bai Abstract New European Union Directive requirements have been introduced for 2.4GHz ISM Data Transmission Equipment, which will be in effect starting January 1, 2015. This article presents an overview of the regulatory compliance requirements, and provides a detailed analysis on the differences between the current standard ETSI EN 300 328 … [Read more...]
How much ESD can an IC bear?
IC immunity tests under the influence of ESD Sven Konig Nowadays, electronic devices have to meet the highest standards in terms of ESD immunity. "According to estimates of TÜV NORD, the manufacturing industry incurs costs amounting to millions of euros every year due to electrostatic discharges. ESD effects lead to circuit failures which in turn bring a vehicle, a process or … [Read more...]
The Need to Develop a Standardized Program for the Education and Training of Electromagnetic Compatibility Engineers
Anthony A. DiBiase There is an evolution in the study of electromagnetic field effects on electrical and electronic products and systems. It is progressing from an engineering art to an engineering science. This is in part due to the fact that the electromagnetic field source environment is increasing in complexity along with a greater intensity. The complexity and … [Read more...]
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