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Interference Technology

For EMI / EMC Engineers

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IEC Issues Two Amendments on EMC Testing and Measurement Techniques

 

The International Electrotechnical Commission (IEC) has issued two amendments on EMC testing and measurement techniques. IEC 61000-4-34-amd1 Ed.1.0 is entitled “Electromagnetic compatibility (EMC) – Part 4-34: Testing and measurement techniques – Voltage dips, short interruptions and voltage variations immunity tests for equipment with mains current more than 16 A per … [Read more...]

Interference Technology Presents: AR RF/Microwave Instrumentation

 

This video features the first part of our conversation with AR RF/Microwave Instrumentation’s President and Founder Don “Shep” Shepherd on the EMC testing industry.  Shep discusses some of the industry trends that have had the biggest impacts on test engineers, his take on EMC in the news in regards to automotive applications, and more.For more information, contact AR … [Read more...]

Significance of Dielectric Materials for In-Vehicle Electromagnetic Field Computation

 

Studies suggest that models based on only the metallic parts of a vehicle can provide useful data for predicting the electromagnetic performance of complex systems such as vehicles. Alastair R. Ruddle, Ph.D., MIRA Limited, Nuneaton, UK Numerical modeling is an increasingly popular approach for investigating electromagnetic issues in complex systems. Possible applications … [Read more...]

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...]

Properly Applying Surge Protective Devices (SPDs) in a Health Care Facility

 

Protecting electrical systems within a facility is paramount to ensure equipment operation and longevity. Bryan Cole, Technology Research Council, Nichols, New York, USA Jim Tiesi, Emerson Network Power Surge Protection, Binghamton, New York, USA Surge protective devices (SPDs) are utilized in numerous applications: commercial buildings, telecommunication shelters, industrial … [Read more...]

Smart and Reliable Assessment of Electromagnetic Environmental Effects on Ordnance

 

Become a successful HERO tester in four easy steps. Gaétan Duplain and Charles Leduc, Opsens, Inc., Quebec, Canada Hazards from Electromagnetic Radiation to Ordnance (HERO), the potential for electromagnetic radiation to pose an adverse effect on munitions, is a familiar problem first identified in the 1950s. Avoiding the unintended detonation or malfunction of electrically … [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...]

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