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Interference Technology

For EMI / EMC Engineers

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Shielding

A Short History and Review of Shielded Cables

 

Effective Shielding prevents interference from entering or emanating from a cable. Don Dodge, Calmont Wire and cable, Inc., Santa Ana, California, USA HISTORY In the late 1800s, as the use of electricity was first being used for communications, interference reared its ugly head. The imperative for some form of mitigation became apparent. The first attempts involved wire … [Read more...]

RF Shielding Materials: An Update on Selection and Cost Consideration

 

RF gasket selection must be a well-informed decision in the design process. Gary Fenical, Laird Technologies, St. Louis, MD, USA Advances in electronic components continue to occur at a rapid pace, and this ongoing rush means more and more wireless devices, increasing power levels, and higher frequencies. While consumers demand more advanced products with increased features … [Read more...]

Protection of Commercial Installations from the 'Triple Threat' of HEMP, IEMI and Severe Geomagentic Storms

 

With properly designed protection, commercial installations and buildings can be protected against each of these environments. William A. Radasky, Ph.D, P.E., Metatech Corporation, Goleta, California, USA Over the past five years, many publications have indicated that three unusual high-power electromagnetic threats pose significant danger to industry. These are: the … [Read more...]

Mitigation of EMP Effects Using Shielded Rooms and Enclosures

 

Performance and reliability of a shielding system is essential in times of emergency. Wayne D. Martin, ETS-Lindgren, Glendale Heights, Illinois, USA The most cursory assessment of news and events around the globe during this first decade of the Twenty-First Century leads to the inescapable conclusion that we live in perilous times. Around the globe, political, ethnic and … [Read more...]

Shielding of an EMG Machine Utilizing a Conductive Tent

 

Testers seek to remedy the longstanding problem of “noisy’ responses from an EMG instrument. Terence P. O’Laughlin and Michael J. Oliver, MAJR Products, Saegertown, Pennsylvania, USA INTRODUCTION This paper presents a shielding methodology and test in which an electromyography (EMG) instrument is shielded from spurious electromagnetic and radio frequency interference … [Read more...]

The Global EMC University: 2009 IEEE International Symposium on Electromagnetic Compatibility

 

The Global EMC University was first offered at the 2007 IEEE EMC Symposium in Honolulu, Hawaii as a means of helping engineers who were new to EMC to get up to speed on a variety of topics that are an important part of EMC engineering. The overwhelming response to this program caused the Symposium Committee to add it to the Technical Program for the 2008 Symposium in Detroit … [Read more...]

Technical Paper Sessions

 

Approximately 160 regular technical papers and approximately 30 Special Session papers are expected to be presented at EMC 2009 in Austin. The Technical Paper Sessions are aligned according to technical topic areas associated with the IEEE EMC Society Technical Committees.The greatest number of papers received was in the topic area of EMC Measurements (TC2). Over 40 papers are … [Read more...]

EMC Society Technical Committees

 

What is a technical committee? The technical committees play an important role in the overall success of the EMC Society by promoting activities in their fields and providing expert knowledge and assistance to generate and review technical papers, to organize and operate sessions at symposia,  to generate and develop standardsn and to evaluate the “state of the art” in EMC … [Read more...]

Low Frequency Magentic Shielding: An Integrated Solution

 

Innovative direct coating technique as an alternative to conventional foils Rich Emrich and Andrew Wang, Integran Technologies Inc.; Toronto, Canada INTRODUCTION Many electrically sensitive devices, such as transducers, sensors, detectors, and test instrumentation require protection from electromagnetic interference (EMI). Higher frequency interference is normally shielded … [Read more...]

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