Special Coverage

Active Aircraft Pylon Noise Control System
Unmanned Aerial Systems Traffic Management
Method of Bonding Dissimilar Materials
Sonar Inspection Robot System
Applying the Dynamic Inertia Measurement Method to Full-Scale Aerospace Vehicles
Method and Apparatus for Measuring Surface Air Pressure
Fully Premixed, Low-Emission, High-Pressure, Multi-Fuel Burner
Self-Healing Wire Insulation
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Emitters Provide Flexibility

Philips Lumileds (San Jose, CA) expanded its LUXEON® Rebel family of LEDs with nine new emitters designed for illumination solutions such as recessed lighting, street lamps, and retrofit bulbs. The new LEDs meet ENERGY STAR® requirements.

Posted in: GDM, Products, News, Energy, Energy Efficiency, Lighting

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Ethanol Funding Opportunity

DOE announced the availability of up to $5.5 million from the American Recovery and Reinvestment Act to increase the use of higher ethanol blends up to E85 (85% ethanol/15% gasoline) by expanding refueling infrastructure.

Posted in: GDM, News, News, Biomass, Energy, Renewable Energy, Government, Government Initiatives, Alternative Fuels, Green Design & Manufacturing, Transportation

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Working Toward Better CO2 Capture

Separating carbon dioxide from its polluting source - such as the flue gas from a coal-fired power plant - may soon become cleaner and more efficient thanks to a screening method developed by a Lawrence Livermore National Laboratory researcher.

Posted in: GDM, News, News, Green Design & Manufacturing, Greenhouse Gases

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LED Driver Increases Component Longevity

Supertex, Inc. (Sunnyvale, CA) introduces a buck-mode LED driver IC with hysteretic current control and high-side current sensing. The HV9918 is ideal for a variety of solid-state lighting applications, such as low-voltage industrial and architectural LED lighting.

Posted in: GDM, Products, News, Lighting

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Allen Parker, Systems Engineer, Advanced Structures and Measurement Group, Dryden Flight Research Center

Allen Parker is a systems engineer with expertise in the areas of fiber optics and data acquisition. He is currently part of the team that is developing and flight testing an innovative new fiber optic wing shape sensor system installed on the Ikhana unmanned aircraft system.

Posted in: Podcasts

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Beyond the Box: A Software-Defined Approach to RF Testing

The traditional engineering re sponse to testing a new wireless standard often involves selecting a box instrument with the closest specifications. For automated test systems with multiple test requirements, this approach usually results in a different box for each measurement requirement in the system. When the test requirements are uniform and non-changing, this method may be sufficient, but it becomes cumbersome, slow, and ultimately more expensive for testing today’s complex radio frequency (RF) devices, which often use multiple wireless standards. A software-defined approach is ideal for automating RF verification, validation, and production tests, while traditional RF box instruments continue to play an important role on the design bench.

Posted in: Articles

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Collecting Ground Samples for Balloon-Borne Instruments

Harpoonlike sample-collection devices would be dropped, then hauled back up. A proposed system in a gondola containing scientific instruments suspended by a balloon over the surface of the Saturn moon Titan would quickly acquire samples of rock or ice from the ground below. Prototypes of a sample-collecting device that would be a major part of the system have been tested under cryogenic and non-cryogenic conditions on Earth. Systems like this one could also be used in non-cryogenic environments on Earth to collect samples of rock, soil, ice, mud, or other ground material from such inaccessible or hazardous locations as sites of suspected chemical spills or biological contamination.

Posted in: Briefs, TSP, Mechanical Components, Mechanics

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