A formalized materials qualification process is essential in preventing non-conforming or suspect counterfeit packaging that can lead to ESD hazards during parts inspection process, long-term storage issues and failures in manufacturing. Robert J. Vermillion, CPP/Fellow, RMV Technology Group, LLC, NASA-Ames Research Park, Moffett Field, CA The aerospace community has made … [Read more...]
Extending the Concept of Common Mode Noise: Single Mode
Electronic switching circuits are used for power conversion, data communication and other applications. According to the theory of Fourier Transform, in these circuits, the periodical change of the current/voltage produces harmonics in a wide frequency spectrum. The resultant currents of these harmonics are called conducted emission (CE), and are categorized classically as … [Read more...]
COTS Alternatives to MIL SPEC Flexible Conduit Systems for EMI/RFI Containment
Applications, electrical and physical performance, termination and installation factors of shielded flexible conduits. Linda Sardone, Zero Ground Electronic solutions for military and government equipment and installations are expanding rapidly, and the need for supplemental shielding of cable runs via conduit is moving beyond traditional applications requiring MIL SPEC … [Read more...]
Halogen-Free Embedded Capacitance Material
Design engineers in the electronics industry who are seeking ways to improve power integrity and reduce electromagnetic interference while meeting halogen-free requirements now have a new solution to meet their needs. The 3M Electronic Solutions Division now offers halogen-free* versions of its Embedded Capacitance Material. 3M’s ECM is a thin, capacitor laminate, which can be … [Read more...]
Navy Awards Contract for Altimetry Satellite
Ball Aerospace & Technologies Corp. was recently awarded a contract by the U.S. Navy’s Space and Naval Warfare Systems Command in San Diego to work on the next generation ocean altimetry satellite. Under the contract, Ball will upgrade the payloads with a dual frequency radar altimeter, and provide enhanced radio frequency interference immunity with significantly reduced … [Read more...]
Choosing the Right Chamber for Your Test Requirements
Martin Wiles, Vince Rodriguez, ETS-Lindgren Developments within standards community has led to new chamber validation procedures above 1 GHz and alternative test methods using FARs. INTRODUCTION Anechoic chambers are used today for performing EMC measurements according to a variety of published EMC standards. There are many different fields of application, including … [Read more...]
Ground Testing of New Generation GLONASS-K Satellite in Progress
The latest GLONASS-K satellite, a radio-based satellite navigation system developed by the former Soviet Union, is undergoing testing of the satellite’s antenna-feeder devices. Specialists have been conducting the necessary measurements of radiofrequency antenna characteristics of the spacecraft and checking their electromagnetic compatibility. Learn more from GPSWorld.com. … [Read more...]
New High-Current EMI Filters
Power Solutions of Crane Aerospace & Electronics, a business unit of Crane Co. recently released EMI filters designed to work with Crane’s Interpoint brand 28 volt input, 1.5 to 120 watt DC/DC converters. The filters are backward compatible and interoperable with Interpoint brand FMH, FMC, FMD, and FME filters.Learn more from Crane Aerospace & Electronics. … [Read more...]
Satellite Instruments Pass EMI Tests
The new satellite FASTSAT-HSV01, which will soon be exploring the outer layers of Earth’s atmosphere, is undergoing testing. The satellite has gone through vibration, thermal, and electromagnetic interference (EMI) tests and “everything looks great,” said Michael Collier, principal investigator for the Miniature Imager for Neutral Ionospheric Atoms and Magnetospheric Electrons … [Read more...]
Fourth 787 Joins Boeing Flight-Test Fleet
Boeing has added the fourth 787 Dreamliner to its flight-test fleet. In addition to demonstrating that the interior meets certification requirements, the new plane will be used to conduct tests on systems, noise performance, flight-deck operations, avionics, electromagnetic effects, high-intensity radiofrequency response and extended operations. Learn more from Boeing. … [Read more...]
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