Testing

This article documents the role of margin demonstration in system-level EMC testing: how and why they were first instituted, and how they have evolved over time.

It is very common for people doing simulations to make a measurement of a similar set up to validate the simulation. This is a reasonable precaution since modern simulation tools will give a very accurate answer to whatever question it is asked.

Modeling and simulation is a complex topic, usually left to experts of the EMC field as the amount of knowledge and understanding that goes into creating a model can be tremendous.

There are several scenarios where integrated circuits (ICs) are mounted on printed circuit boards (PCBs) which might be charged-up and experience CDM-like events.

This article will define the test requirements, and discuss the methods used to obtain results. Limitations of the equipment used will also be discussed, so that lab personnel can be made aware and do their best to minimize tolerance errors.

Quite often, we are asked about the most common deficiencies that are cited by assessors during A2LA assessments to ISO/IEC 17025:2005.

Statistical models for maximum electromagnetic fields within RF reflective enclosures (i.e. complex cavities) have historically been derived from parent distributions obtained from the central limit theorem applied to sums of random variables.

Radiated emission measurements are required worldwide as one type of EMI measurement to demonstrate product compliance with regulatory requirements.

If you are entering the Japan marketplace for the first time, it is highly recommended to hire an experienced regulatory consultant, familiar with the latest requirements as they frequently change as electronics equipment advances, especially since many Japanese consumers are early adopters of new technologies.

Although the foundation of a failure analysis is rooted in science, there is also an art to completing one, successfully. The path from “problem discovery” to “problem solution” has many bumps and twists along the way and this article will hopefully help guide you on your journey.