EMI/EMC in Military Systems Training

Systems EMC (Electromagnetic Compatibility) involves the control of EMI (Electromagnetic Interference) at the systems, facility, and platform levels (e.g. outside the box.) This three-day EMI/EMC in Military Systems Training course provides a comprehensive treatment of EMI/EMC problems in military systems. These include both the box level requirements of MIL-STD-461 and the systems level requirements of MIL-STD-464. The emphasis is on prevention through good EMI/EMC design techniques – grounding, shielding, cable management, and power interface design. Troubleshooting techniques are also addressed in an addendum. Please note – this class does NOT address circuit boards or specific test issues. Each student will receive a copy of the EDN Magazine Designer’s Guide to EMC by Daryl Gerke and William Kimmel, along with a complete set of lecture notes.

Thinking about EMC training? The payback is there — just one extra trip to the test lab can cost you $10-20K in test and engineering time! Not to mention the additional cost of being late to the market, or the cost of fixing EMI problems in the field.

EMI/EMC in Military Systems TrainingDuration: 4 days

  • We can adapt this EMI/EMC in Military Systems training course to your group’s background and work requirements at little to no added cost.
  • If you are familiar with some aspects of this EMI/EMC in Military Systems course, we can omit or shorten their discussion.
  • We can adjust the emphasis placed on the various topics or build the EMI/EMC in Military Systems course around the mix of technologies of interest to you (including technologies other than those included in this outline).
  • If your background is nontechnical, we can exclude the more technical topics, include the topics that may be of special interest to you (e.g., as a manager or policy-maker), and present the EMI/EMC in Military Systems course in manner understandable to lay audiences.

The target audience for this EMI/EMC in Military Systems course:

  • All

The knowledge and skills that a learner must have before attending this EMI/EMC in Military Systems course are:

  • N/A
EMI/EMC in Military Systems Training - OBJECTIVES

Upon completing this EMI/EMC in Military Systems course, learners will be able to meet these objectives:

  • How to identify, prevent, and fix common EMI/EMC problems in military systems
  • Simple models and “rules of thumb” and to help you arrive at quick design decisions (NO heavy math).
  • EMI/EMC troubleshooting tips and techniques.
  • Design impact (by requirement) of military EMC specifications (MIL-STD-461 and MIL-STD-464)
  • EMI/EMC documentation requirements (Control Plans, Test Plans, and Test Reports)
EMI/EMC in Military Systems Training - COURSE SYLLABUS
  1. Introduction. Interference sources, paths, and receptors. Identifying key EMI threats – power disturbances, radio frequency interference, electrostatic discharge, self-compatibility. Key EMI concepts – Frequency and impedance, Frequency and time, Frequency and dimensions. Unintentional antennas related to dimensions.
  2. Grounding – A Safety Interface. Grounds defined. Ground loops and single point grounds. Multipoint grounds and hybrid grounds. Ground bond corrosion. Lightning induced ground bounce. Ground currents through chassis. Unsafe grounding practice.
  3. Power – An Energy Interface. Types of power disturbances. Common impedance coupling in shared ground and voltage supply. Transient protection. EMI power line filters. Isolation transformers. Regulators and UPS. Power harmonics and magnetic fields.
  4. Cables and Connectors – A Signal Interface. Cable coupling paths. Cable shield grounding and termination. Cable shield materials. Cable and connector ferrites. Cable crosstalk. Classify cables and connectors.
  5. Shielding – An Electromagnetic Field Interface. Shielding principles. Shielding failures. Shielding materials. EMI gaskets for seams. Handling large openings. Cable terminations and penetrations.
  6. Systems Solutions. Power disturbances. Radiofrequency interference. Electrostatic discharge. Electromagnetic emissions.
  7. MIL-STD-461 & MIL-STD-464 Addendum. Background on MIL-STD-461 and MIL-STD-464. Design/proposal impact of individual requirements (emphasis on design, NOT testing.) Documentation requirements – Control Plans, Test Plans, Test Reports
  8. EMC Troubleshooting Addendum. Troubleshooting vs Design & Test. Using the “Differential Diagnosis” Methodology Diagnostic and Isolation Techniques – RFI, power, ESD, emissions
EMI/EMC in Military Systems Course Wrap-Up

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