In an effort to encourage the enthusiasm and innovation of tomorrow’s engineers, the National Academy of Engineering is sponsoring an essay entitled, “EngineerGirl!—Imagine That! Engineering Innovation.” Prospective contestants are asked to examine carefully one of three images and then to answer some provocative questions. What is it? What might it be used for? What are the … [Read more...]
Inductor Selector Guide for R&D Engineers
Würth Elektronik, one of the world leaders in EMC & Inductive Solutions, has launched the 'Inductor Selector' specifically for R&D Engineers. The Inductor Selector is an ideal software tool for all electronic R&D engineers developing DC/DC converters. With the WE Inductor Selector you get a suitable inductor for your specific DC/DC converter within 30 seconds, no … [Read more...]
M2M and 3G Wireless Integration Challenges
Author Bruce E. Touzel, Cisco Systems, Inc. The Opportunity More and more, 3G wireless modems are finding their way into places other than your typical mobile phones and laptops for internet connection. A term called M2M (machine-to-machine) is defining the new 3G communications link between machines for telemetry and other industrial & commercial purposes such … [Read more...]
IEEE Leaders Work to Encourage Engineering as a Career Choice
Leaders of the Institute of Electrical and Electronic Engineers (IEEE) have noted a worldwide alarming trend and are taking steps to counter the situation. In Western Europe, Australia, Japan, and even India, the number of students attracted to engineering is declining. For example, a 2003 Harris poll conducted in the U.S. shows that only two percent of first year university … [Read more...]
Electromagnetics at 431 kmh!
That’s about 267mph by my reckoning! And this takes place every day, as many of you may already have guessed, on the Shanghai Maglev (Magnetic Levitation) Train. Over the last five years, I have tried several times to try this wonder of modern science, only to be thwarted by mechanical failures on their part, or bad timing on my part. Well, last Friday, when leaving the 2008 … [Read more...]
Improving the Way We Measure Insertion Loss
A proposed set of new test methods may provide more accurate attenuation data Kermit O. Phipps, Philip F. Keebler, Bradford R. Connatser Many commercial and industrial electrical environments contain equipment that is sensitive to radio-frequency (RF) interference. Theft detectors, digital sensors, and medical-telemetry systems have all been known to malfunction in the … [Read more...]
Performing GR-1089-Core Lightning and Power Cross Test
A review of the test methodologies and equipment required to perform GR-1089-CORE lightning and power cross testing James Press, Jennifer Lawrence, Mark Betts, John Ngo ABSTRACT The pitfalls and difficulties in performing testing in accordance with GR-1089-CORE, Section 4 are discussed. A brief description of the GR-1089-CORE document is presented to familiarize the reader … [Read more...]
Chinese Safety and EMC Laboratories Receive International Accreditations
The Chinese power supply company, Huntkey Enterprise Group, has announced that its safety laboratory and EMC laboratory have received accreditation certified by UL, TUV and NEMKO. Receiving these accreditations will tremendously shorten the accreditation cycle of product R&D and accelerate the public listing of Huntkey products, the company says.Visit Huntkey’s Web site to … [Read more...]
EMC in Space …
Successfully dealing with EMC in space systems requires strong EMC engineering Daryl Gerke, PE, and William Kimmel, PE Many of us in the EMC business came of age during the “space race” of the 1950s, 60s, and 70s. We well remember names like Sputnik, Mercury, Gemini, and of course, Apollo. Some of us in the EMC business have even been fortunate enough to spend some (or all) or … [Read more...]
Spiteful EMI Can Cost You
The Federal Communications Commission (FCC) has issued a monetary forfeiture order in the amount of $1,500 to Dale Lloyd Allred of Tunnel Hill, GA. Allred was fined for willful and repeated violations of Sections 301 and 333 of the Communications Act of 1934 as amended. Earlier this year, the FCC’s Atlanta office received complaints about interference to school bus radios … [Read more...]
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