Reasons for widely differing results in commercial radiated emission measurements. MIL-STD-461 RADIATED EMISSION MEASUREMENTS In 1967, the first version of MIL-STD-461 was introduced. Radiated emission measurements were allowed outside of a shielded room but due to the low levels of radiated emission limits, compared to an average ambient, measurements were invariably made … [Read more...]
Military
Company Completes Rocket Test Plans EMI Test
After the recent completion of a tanking test of its Falcon 9 rocket, engineers at SpaceX, a space exploration technologies corporation, plan to perform electromagnetic compatibility tests with the Air Force while the Falcon 9 is on the pad. Testing of the rocket’s flight termination system is continuing. Before the Air Force approves the launch, SpaceX and the supplier of its … [Read more...]
Spotlight on Carbon Nanotube Technology
Meaningful advancement and delivery of novel materials such as carbon nanotubes is critical to state-of-the-art global defense, transportation and energy, experts say. Carbon nanotube technology (CNT) sheet material allows for easy incorporation into many fixed-form and flexible structures as a lightweight shielding alternative to conventional solutions currently in use. … [Read more...]
Electronics Experts Discuss EMI in Sudden Acceleration Incidents
When it comes to sudden acceleration, automakers claim absence of a detectable fault proves absence of design defect. Not true, said a panel of electronics experts who gathered Tuesday at the National Press Club in Washington, D.C., to demystify some of the electronics issues they say are likely responsible for Toyota – and other automakers -- sudden acceleration … [Read more...]
Selecting the Right RF Coaxial Connector and Cable
RF coaxial connectors and cables provide a vital link within the communications, EMC test and measurement, commercial and military fields. Although there are a variety of RF coaxial connectors, they are characterized by a few key parameters. An article in Dataweek shows how these characteristics, along with connector durability and cost, must be considered in light of the … [Read more...]
Electronics Experts Debunk Toyota Claims
When it comes to sudden acceleration, automakers claim absence of a detectable fault proves absence of design defect. Not true, said a panel of electronics experts who gathered Tuesday at the National Press Club in Washington, D.C., to demystify some of the electronics issues they say are likely responsible for Toyota – and other automakers -- sudden acceleration … [Read more...]
Contact System Available with Crimp, PCB Mount Terminations
Positronic’s new PosiBand contact system is now qualified to SAE AS39029. This specification covers a wide range of high reliability crimp connector contacts for use in military and aerospace applications. The PosiBand system is suitable for any application requiring rugged, high reliability connectors, and is available with crimp and PCB mount terminations, including … [Read more...]
Laboratory Helps Bolster Kansas Aerospace Industry
As the aerospace industry converts to composite materials and develops new tools, laboratories like the Wichita, Kan.-based National Institute for Aviation Research (NIAR) have become critical in testing such things as the top-secret electronics and electronics-shielding products for the military and others. Roy Wenzel of The Wichita Eagle looks at NIAR’s effect on the industry … [Read more...]
COTS Filters Perform in Extended Temperature Range
LCR Electronics recently announced that it now offers a line of single phase 300 VAC 50/60Hz COTS filters ideal for high reliability applications as found in the lighting, military and medical industries. Operating over an ambient temperature range of -40°C to +85°C (-40°F to +185°F), the new RoHS-compliant Single Stage 0913 Filters and Double Stage 0923 Filters are used where … [Read more...]
Henry Ott’s EMC Classic, Now Updated
“Electromagnetic Compatibility Engineering” is a completely revised, expanded, and updated version of Henry Ott's popular book “Noise Reduction Techniques in Electronic Systems.” It reflects the most recent developments in the field of electromagnetic compatibility and noise reduction, and their practical applications to the design of analog and digital circuits in computer, … [Read more...]
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