Typical laser system applications in space include precision range measurements, radar-like “lidar” systems to gather a complete picture of surface terrain or three-dimensional samplings of planetary atmospheres and laser-based space communications with high bandwidth and minimal electromagnetic interference. ESA has selected Yokogawa digital oscilloscopes for its European … [Read more...]
Inflight Wi-Fi Interfering with Flight Critical Electronics
Inflight Wi-Fi and cellphone services, which transmit low power microwave radio signals within an aircraft's fuselage, has been found to be interfering withflight critical electronics. This latest finding was made by Boeing while testing inflight Wi-Fi equipment for use on its next generation 737 twin-engined aircraft. The plane maker found that a certain type of new, brighter … [Read more...]
Russian Satellite Crash May Have Been Caused By EMI
A Russian Geo-IK-2 satellite launch failed “because of possible external electromagnetic interference from a sea-, land- or air-based source.” The satellite was launched by a rocket converted from a SS-19 intercontinental ballistic missile that apparently did its job sufficiently well, but an additional Briz-KM booster malfunctioned. Finally, the Geo-IK-2 was boosted to an … [Read more...]
NASA Satellite Completes EMI/EMC Testing
The NASA National Polar-orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project (NPP) climate/weather satellite is undergoing flight environmental testing. The NPP satellite began environmental testing in November 2010 and has successfully completed vibration, acoustics, shock environments and electromagnetic compatibility/electromagnetic interference … [Read more...]
Good News from U.S. Navy for Shipboard Electronics Integrators
U.S. Navy projects to build a variety of surface warships are on track, despite several different cutbacks, which is good news for suppliers and integrators of shipboard electronics who are looking forward to a wealth of new projects, electronic systems upgrades, and technology insertion. Two EMC-related projects include electronic modular enclosures (EME) for communications … [Read more...]
Electrostatic Discharge Cripples Galaxy 15 Satellite
The Galaxy 15 telecommunications satellite, which remained electrically active while in an uncontrolled drift in geostationary orbit for more than eight months, was rendered unable to take commands by an electrostatic discharge that fouled its on-board software. The exact cause of the electrostatic discharge, which disabled components in the satellite’s baseband equipment … [Read more...]
NASA Notes EMI Restrictions around Fueled Rocket
The area around the space shuttle Discovery’s external fuel tank is considered a hazardous environment, which requires special safety precautions including grounding and electromagnetic interference restrictions. Discovery’s external fuel tank has taken on a bit of a starring role for the STS-133 mission because of the extra work needed to handle the unexpected challenges … [Read more...]
Multispectral Camera Receives EMI Design Improvements
A multispectral imager built by FluxData, Inc. is heading to the International Space Station. Substantial improvements were made to the system’s design to withstand the environmental conditions in the space station and tough NASA requirements for electromagnetic interference, shock and vibration, the company says. Learn more at Space Ref. … [Read more...]
New Family of Military Analog Switches and Multiplexers
Vishay Intertechnology, Inc., a supplier of high-reliability discrete and IC components to military and aerospace customers, has expanded its family of MIL-PRF-38535-screened analog switches and multiplexers with the release of the hi-rel DG408, an 8-channel, single-ended analog multiplexer. In June 2010 the Vishay Siliconix facility in Santa Clara, Calif., was re-qualified by … [Read more...]
Safety Issues of EMI on Airplanes
A recent article in the New York Times discusses how airline passengers are taking an increasing array of electronic devices on board planes, and while they may not seem to cause any problems, older planes might not have the best shielding against the latest generation of devices. The Federal Aviation Administration says there are risks associated with electromagnetic … [Read more...]
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