Electronics & Computers

T-rays Will “Speed Up” Computer Memory By a Factor of 1,000

Together with their colleagues from Germany and the Netherlands, scientists at the Moscow Institute of Physics and Technology (MIPT) have found a way to significantly improve computer performance. They propose the use of so-called T-waves – or terahertz radiation – as a means of resetting computer memory cells. This process is several thousand times faster than magnetic-field-induced switching.

Posted in: News, News, Board-Level Electronics, Computers, Electronic Components, Electronics, Electronics & Computers
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Advanced Thermal Management Solutions

Now more than ever, devices with increasing power and smaller footprints are demanding a good stable cost effective thermal management solution. Fortunately many options are available today. However, for device packaging designers not familiar with these technologies, determining which thermal management technology is appropriate for their application can be a challenging task. To help sort out the many options, here is an overview of three very different thermal technologies: passive heat pipes, pumped two-phase cooling systems and temporary thermal storage/ phase change materials (PCM) heat sinks. In each case we’ll provide an overview of each of these technologies, explain how they function and provide some examples of when they should be considered.

Posted in: Articles, Aerospace, Defense, Thermal Management, Thermal management, Packaging
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Thermoelectric Cooling

There are many places one can go to get an outline on the pros and cons of different methods for enclosure cooling. Although we will briefly touch on them here, this is really an in-depth article on how to choose a Peltier (thermoelectric) air conditioner, once you have committed to the technology.

Posted in: Articles, Defense, Thermal Management, Air conditioning, Thermal management
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Thermal Ground Planes Optimizing Heat Transfer in Aerospace and Defense Applications

Wide band gap (WBG) semiconductors are semiconductor materials that allow higher voltages, higher frequencies and operation at higher temperatures over conventional electronic materials, thereby allowing higher performance electronics to be constructed. The Defense Advanced Research Projects Agency (DARPA) understood the advantages of using WBG in aerospace and defense applications but also understood that thermal management was going to be a significant technical challenge to achieving the full potential of WBG technology. Accordingly, to overcome these and other challenges, DARPA sponsored the development of a new form of heat pipe, known as a Thermal Ground Plane (TGP), to effectively cool WBG devices.

Posted in: Articles, Defense, Thermal Management, Electronic equipment, Thermal management, Defense industry, Cooling, Semiconductors
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Thermal Management of Laser Diodes

High-power laser diodes can generate a great deal of heat. Even for laser diodes operating with 70% or higher efficiency, a large amount of applied energy is converted to heat. Since the performance and optical efficiency of a laser diode is dependent upon operating temperature, maintaining a stable temperature close to room temperature (about +25°C) is instrumental in achieving high reliability.

Posted in: Articles, Defense, Thermal Management, Lasers, Thermal management
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Avionics Upgrades

ARC® Avionics Corporation (ARC)
Kirkland, WA
425-576-5030
www.arcavionics.com/

ARC® Avionics Corporation (ARC), a wholly-owned business unit of AirSpeed® Engineering (ASE) and host MRO Commercial Jet, announced completion and delivery of a B737-400C as avionics-compliant for EASA-SESAR operations. ARC, as Universal Avionics integrator, has installed STC - ST03662AT for dual UNS-1Fw FMS and future UL-801 DataLink capability. Commercial Jet (KMIA) has installed an 11-pallet AEI cargo door and floor conversion as new NextGen DHL freighter conversion delivered to CarGOAir of Sofia, Bulgaria.

Posted in: Application Briefs, Aviation, Defense, Electronics, Avionics
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Clean Sky Open Rotor Engine Components

+44 (0)1527 517 715
www.gkn.com/aerospace

GKN Aerospace has delivered the two rotating frames for a major research program exploring open rotor aero-engine designs with a goal of achieving a 20% reduction in fuel consumption and CO2 emissions. The Open Rotor engine project is part of the Clean Sky Sustainable and Green Engines (SAGE) program, a 50% European Union-funded, multi-partner activity aimed at lowering fuel consumption and emissions through more efficient aero-engine architectures.

Posted in: Application Briefs, Aerospace, Aviation, Defense, Electronics, Suppliers, Engine components, Rotary engines
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Cloud Security & Compliance

What Every Defense Organization Needs to Know

Not too many years ago, network security was a relatively low level priority in most organizations. That has changed today due to such high level failures as the recent breaches at Sony and Target. Closer to home, the University of Maryland is now incurring large expenses for all students due to the recent leak of personally identifiable student information.

Posted in: Articles, Defense, Electronics & Computers, Cyber security
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MicroTCA Computing for Mil/Aero Applications

Small Form Factor (SFF) embedded systems have been gaining popularity due to their small size, weight, and power (SWaP) advantages. The SFF architectures are typically purpose-built, providing just a few specific functions. But, the performance level is often limited and the versatility and re-usability across multiple applications is typically very low. Is a balance available where there is high performance and versatility in an open standard architecture, but a compact size that is optimized for SWaP-C (C stands for cost)?

Posted in: Articles, Defense, Electronics & Computers, Architecture, Computer software / hardware
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Isotope Beta-Battery Approaches for Long-Lived Sensors

The energy density of isotopes enables long-life electronics in sensor network applications.

The energy density of isotopes exceeds that of chemical energy storage by six orders of magnitude. Isotopes are used in many commercial applications, and are produced and available at modest prices. The power requirements of many sensors and communications equipment can greatly reduce the power requirements of many devices such as sensors, light sources, and transmitters. Chemical batteries are the mainstay of power for these devices. However, chemical batteries have limited lifetimes. This makes remote use and replacement difficult for applications extending the lifetime use.

Posted in: Briefs, Defense, Power Management, Sensors, Batteries, Sensors and actuators
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