Christian Hoffmann, Technische Universität München, Lehrstuhl für Hochfrequenztechnik, Munich, Germany; Stephan Braun, GAUSS Instruments GmbH, Munich, Germany Arnd Frech, GAUSS Instruments GmbH, Munich, Germany; Peter Russer, Technische Universität München, Lehrstuhl für Nanoelektronik, Munich, Germany Time-domain electromagnetic interference (EMI) measurement systems are … [Read more...]
Electromagnetic Interference Sources and Their Most Significant Effects
As the density of the electromagnetic environment continues to increase, the concern about its effects from sources producing EMI also increases. Advances in technology and the number of products produced are having a significant effect on the efforts aimed at maintaining the required operation and interoperability of products and systems used in our society. These events had … [Read more...]
Going from Analog to Digital
Philip F. Keebler, EMC Group, Electric Power Research Institute, Knoxville, Tennessee USA; Stephen Berger, TEM Consulting, LLC, Georgetown, Texas USA Nuclear power plants (NPPs) in the United States have been undergoing upgrades from analog instrumentation and control (I&C) equipment to digital equipment over the past several years. Upgrades have been occurring on the … [Read more...]
Numerical Solution of Complex EMC Problems Involving Cables with Combined Field / Transmission Line Approach
Many problems of electromagnetic compatibility and interference involve cables, which either radiate through imperfect shields and cause coupling into other cables, devices or antennas, or which receive (irradiation) external electromagnetic fields (radiated from antennas or leaked through other devices) and then cause disturbance voltages and currents potentially resulting in … [Read more...]
LED Backlighting Lowers EMI
Sharp Microelectronics’ new large-format LED-backlit LCD product line are ideal for industrial applications including Factory Automation, Gaming, Medical Devices, Point of Sale Terminals, Transportation, Test and Measurement, and many others. LED backlighting in LCDs helps lower power consumption and reduces electromagnetic interference compared to CCFL-based products. LEDs are … [Read more...]
Cell Phone-Cancer Studies Pose More Problems than Answers
In an expansive New York Times article that examines the possible links between cell phones and cancer and reviews the various studies performed on the subject over the last decades, Siddhartha Mukherjee, an assistant professor of medicine in the division of medical oncology at Columbia University, determines that, thus-far, “this extraordinarily wide-cast net has yet to find … [Read more...]
European Test Company Buys EMC Lab
CSA Group has acquired INTRATest GmbH, a company with areas of expertise that include in-depth knowledge of the applicable standards, approval regulations and their interpretation and application in product design for Electromagnetic Compatibility (EMC) and Product Safety. INTRATest GmbH will become CSA's primary testing laboratory for medical equipment in Europe. CSA Group has … [Read more...]
Report: EMI a Long-Term Risk in Implantable Cardioverter Defibrillators
Electromagnetic interference could play a role in the long-term risks of having an implantable cardioverter-defibrillator (ICD), according to a recently published AccessMedicine report from McGraw-Hill. While the long-term risks, including lead- or device-related malfunction, infection, and inappropriate shock, are felt to be low when compared to the benefits of a life-saving … [Read more...]
Study: Cell Phones Cause Brain-Activity Changes
The electromagnetic radiation emitted by a cellular phone’s antenna appears to activate nearby regions of the brain to unusually high levels, according to a study published Tuesday in the Journal of the American Medical Association that is likely to spark new concerns about the health effects of wireless devices.According to the study, the area of the brain closest to the cell … [Read more...]
Material Gives EMI Shielding to Medical Devices
SABIC Innovative Plastics’ LNP Thermocomp high specific gravity (HSG) compounds for radiation shielding address upcoming changes to the lead replacement exemption for Category 8 products under the European Union’s (EU) Restriction of Hazardous Substances (RoHS) directive. The plastic compounds utilize electrically conductive stainless steel fibers in a resin matrix to provide … [Read more...]
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