Sessions will cover the following:

GTEM Testing Methodology for ICs by Vince Rodriguez, ETS-Lindgren

                        Abstract:    As integrated circuits (ICs) become increasingly pervasive in all industries, especially automotive, emissions from ICs and their effect on the overall product performance become increasingly significant.  For example, vehicles today have much more processing power than used in the past on board the space vehicle Apollo, which put a man on the moon!  ICs, switches, transducers, sensors, motors and interfaces all operate today in a very harsh and confined environment, particularly in the automotive environment.  Their impact on overall vehicle performance cannot be overestimated, especially as faster ICs have pushed the upper emission limits above the 1 GHz mark, in such standards as SAE 1752-3.   This presentation will outline new ways to effectively perform EM testing of ICs that are time efficient, repeatable, accurate, and cost effective using GTEM testing methodology. 

CISPR 25 Testing Using Time Domain (FFT) Based Test Instruments, by James Young, Rohde & Schwarz

Abstract:  This session will discuss EMI measurement systems with a focus on comparing and contrasting time domain/FFT based instruments and frequency domain instruments.  Discussions centering the pros and cons of each method, timing comparisons, accuracy comparisons and overall usability of the results will be addressed.  The burning question: “Can an FFT yield compliant measurements?” will be discussed, as will be “What are the considerations when using the statistical approximations of the quasi-peak and average detectors in FFT based systems?” 

600 Volt per Meter Reverb Systems; Real World Experiences and Test Data, by Hans-Peter Bauer, Rohde & Schwarz

 Abstract:  This session will review four recent reverberation immunity system installations that achieved 600 volt per meter field strengths.  It is well known that RF power amplifiers used in immunity systems make up the bulk of the price of the system, and that the price of the amplifiers is directly proportional to required output power.  As a result, component suppliers and testing facilities benefit from having an accurate representation of the power requirements necessary to achieve a 600 V/m field under real world conditions.  Actual test data will be shown which display the achievement of the required GMW and Ford field strength and the power required to attain it given paddle positions, size of the chamber, and different loading configurations

EMC Chapter Inter Laboratory Correlation Task Force.”  Recent emphasis on verification testing within the automotive EMC community, and in particular among the A2LA accredited AEMCLAP laboratories, has generated the need to discuss this topic in an open forum.   

Abstract:  Verification Testing for the EMC Laboratory - The EMC laboratory, its ISO 17025 requirements and methods: ISO 17025 requirements for verification and inter laboratory correlation pose two related, yet different, tasks on the EMC laboratory.  Each has its place in ensuring the laboratory’s continued skills and data accuracy.  Verification testing serves two fundamental functions: First, it ensures a periodic function of the test equipment and procedures, and in turn ensures that skills that might become weak are maintained at least to a minimum level.  The second is to serve as a check on the data gathered using the particular test method.  Comparisons between earlier data sets and the most recent can be used to determine the long term, historical stability of the test system, and of the training of its operators.  We will discuss both functions in some detail, and provide examples of methods of ensuring both the near term repeatability as well as long-term historical records.  A template for the minimum required verification testing schedule will be suggested along with three methods of satisfying the requirement.  Correlation testing between cooperating laboratories will be discussed with the intention of defining the purpose, benefits, costs and rewards of this approach to test method verification.  We will also engage in an internal debate on both the risks and rewards to be encountered in such ‘open’ programs of inter laboratory cooperation.  Several options for building a network of such laboratories, and possible alternatives will be explored, compared, and contrasted. 

 Abstract:  The New Local IEEE EMC Chapter Inter Laboratory Correlation Task Force:  A growing need was perceived within the EMC community by the officers of Southeastern Michigan Section Chapter VIII (EMC) for a method to facilitate the gathering and ‘safe’ distributions of inter laboratory comparison test data.  Engineers at Yazaki were instrumental in devising a prototype minimum-maintenance system and promoting its use within the local EMC community.  In order to expand this system’s use, the Chapter organized a sub-element within its structure as a Round Robin Task Force designed to lead the Chapter in the development of appropriate systems to extend this system to all of the most common tests and coordinate among a larger number of EMC laboratories.  Topics covered will include: Information exchange, Round Robin testing, control of the test artifacts, development of ‘common’ test methods, test method tutorials and workshops for education and training at the Chapter level.  In addition, we will lay the groundwork for inter laboratory mutual self-help. 

This is a FREE event Sponsored by ETS-Lindgren, Rohde & Schwarz, U of M Dearborn and the Southeastern Michigan Chapter of the IEEE Electromagnetic Compatibility (EMC) Society.

Acknowledgement

The SE Michigan EMC Chapter is grateful for the support provided by Rohde & Schwarz, ETS-Lindgren, and Conformity Magazine for providing the technical experts, equipment to support the demonstrations, and for funding the printing of the program and catering during the seminar. Also, many thanks to Kimball Williams for lending his time and expertise to the technical program.   Last, but not least, our gratitude goes to the University of Michigan at Dearborn for providing the excellent conference facilities and for establishing an undergraduate course in EMC complemented by an on campus EMC laboratory.

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