Electronics & Computers

Advances in Lightweight Electronics Protection

Lightweighting continues to be a key topic for the aerospace, avionics and defense industries as new metals and composites are being integrated into end products and assemblies with the goal of decreasing overall system weight. As technologies continue to evolve, with components often decreasing in size and increasing in complexity, the materials used to manufacture and protect the latest components and systems are also improving. Whether used in commercial or military aircraft, rockets, satellites, terrestrial or water vessels, or the latest in unmanned air, land and sea vehicles; systems within these industries must meet similar requirements – assemblies, components and electronics must be both lightweight and designed to withstand harsh operating conditions.

Posted in: Articles, Aerospace, Defense, Electronics, Coatings & Adhesives, Avionics, Electronic equipment, Avionics, Electronic equipment, Lightweight materials, Lightweighting, Military vehicles and equipment

Powering Outer Space: An In-Depth Look at Aerospace Battery Technology

With space’s extreme environments, there is never a one-size-fits-all battery. Nor is any space mission ever the same, so customized batteries for each operation are essential. Saft, has been powering outer space for more than 50 years. Saft’s first battery was launched into space in 1966 aboard the D1A “Diapason”, which was powered with nickel cadmium (Ni-Cd) technology. To date they are the only battery manufacturer to supply all battery technologies used in space: Nickel (Ni-Cd, Ni-H2), primary lithium (Li-SO2, Li-SOCl2 and Li-MnO2) and rechargeable lithium or lithium-ion (Li-ion).

Posted in: Articles, Aerospace, Batteries, Power Supplies, Batteries, Batteries, Supplier assessment, Spacecraft

Communications Electronics Cooling Systems

Aspen Systems
Marlborough, MA

Aspen Systems are supplying Environmental Control Units (ECU’s) for critical communications electronics cooling for the Joint Light Tactical Vehicles (JLTV) being produced by Oshkosh Corporation. The first vehicle order under this contract was released by the Army on March 23, 2016 for 657 vehicles. The initial JLTV production contract calls for a delivery total of nearly 17,000 vehicles, while the total program is expected to result in over 50,000 JLTVs delivered to the US Military.

Posted in: Application Briefs, Communications, Defense, Electronics, Thermal Management, Electronic equipment, Telecommunications, Electronic equipment, Telecommunications, Cooling

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

Antenna Basics

The antenna is the most intrinsic component of all RF systems, yet the principles of antenna design and wave propagation are rarely discussed outside the entry level engineering classes. Rohde & Schwarz has developed an educational white paper on Antenna Basics to reteach the basic principles in a simplified manner.

Posted in: White Papers, White Papers, Aeronautics, Defense, Electronics & Computers, RF & Microwave Electronics

The Economics of Accuracy in Low-cost, High-volume Sensing Applications

Various research firms forecast the market for portable medical devices to be somewhere around the $20 billion-range within the next several years. Part of the increased demand is due to an aging population with more chronic conditions. These smaller portable units requires devices with smaller footprints. By the same token, smaller devices need to provide adequate levels of care to ensure patient safety and comfort. Thus, functionality cannot be sacrificed for space.

Posted in: White Papers, White Papers, Electronics, Electronics & Computers, Semiconductors & ICs, Data Acquisition, Sensors

Developing and Testing Electronic Control Units for Electric Drives

Air framers are looking to build more eco-friendly and economical aircraft, and they are turning to electric drives. One growing trend is to build more electrical aircraft by replacing pneumatic and hydraulic systems with electric actuators. Electric drives, therefore, will play an important role in the aircraft of the future. This paper examines the current state of technology for developing and testing electric drives.

Posted in: White Papers, White Papers, Aeronautics, Electronics, Electronics & Computers, Test & Measurement

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, Thermal management, Packaging

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, Air conditioning, Thermal management

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, Electronic equipment, Thermal management, Thermal management, Defense industry, Cooling, Semiconductors