Tailoring Safety Into Audio Frequency Power-Line Susceptibility Testing
Solar Electronics founder Al Parker used to say about EMI testing, “There’s more than one way to skin a cat.” Here are a couple more.
RF Tech Tip: BNC Versus Threaded Connectors
The shielding performance of bayonet vs. threaded connectors is measured and some possibly surprising conclusions are drawn. Bayonet connectors – more useful than you might think.
Lightning and RF Electrical Bonding
Everything you need to know about the lightning and radio frequency bonding requirements in military and aerospace standards (and nothing you don’t!)
MIL-STD-464D: A Review of Recent Changes
In this article, we detail the key changes between MIL-STD-464C and MIL-STD-464D, the recently-released update to the standard.
A Problem (and a Solution) with MIL-STD-461F/G CS114 Below 10 kHz
Ten years ago, MIL-STD-461F added a low frequency extension to CS114 that models common mode noise generated by dc power systems used on Navy ships.
Evolution of Margin Demonstrations in the EMC Discipline
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.
(More) On Field-To-Wire Coupling Versus Conducted Injection Techniques
Investigating a Significant Discrepancy in Modern Bulk Cable Injection Test Methods
In the 1990s, bulk cable injection (BCI) techniques were still relatively new and controversial. BCI in support of ... Read More...
Fifty-Year Old EMI Testing Problems Solved!
There have been inherent problems with audio frequency conducted susceptibility tests since their inception. These are: ensuring that the injected signal drops across the test sample; monitoring the signal that is developed across the test sample, both from the point-of-view of isolating the instrumentation so it doesn’t ground the input power return and, more problematically, monitoring injected ripple riding on an ac bus potential. These issues are resolved using a novel but inexpensive transducer described herein.
MIL-STD-464C – A Review of the Latest Revisions to the Standard: Part 3
This is the last in a three part review of the newly released MIL-STD-464C, “Electromagnetic Environmental Effects Requirements for Systems.” The following is a summary of Parts 1 and 2 of the review, then on to new material.
MIL-STD-464C – A Review of the Latest Revisions to the Standard: Part 2
AUTHOR’S NOTE
Due to problems in the digital publishing process, MIL‑STD‑464B 01 October 2010 is scrapped and MIL‑STD‑464C, release date 01 December 2010 will take its place. There are no technical changes f... Read More...