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Specialty Fibers Guide Light When the Going Gets Tough

In spectrometry, the more light gathered the better the results. Yet in many applications, both military and commercial, the need to protect instruments or operators from harsh environments, as well as installation constraints, make conventional line-of-sight optics impractical. Specialty fibers can offer the robustness and light-handling characteristics that such applications require.

Posted in: Articles, Features, ptb catchall, Photonics

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Direct Spray Liquid Cooling Systems

For decades military platforms have included electronics for avionics, vehicle controls, radios, radar, sonar and fire control. From a computational standpoint most of these systems could be accomplished with relatively low power devices. There have always been higher performance electronics for applications such as radar processing, Intelligence, Surveillance, and Re - connaissance (ISR) processing, and mission computing; however, high performance electronics were relegated to stationary, benign environments. Due to bandwidth limitations of secure communications between command centers and front line troops, trends to include these computationally intense applications on vehicles and aircraft exist. From airborne platforms such as U-2 Dragon Lady and Global Hawk operating up to 70,000 feet and -65°C, to a surface-to-air missile launcher mounted on a 5-ton truck called Medium Extended Air Defense System (MEADS) in a scorching +60°C desert, the military is deploying incredible performance in harsh environments. To fit on these military vehicles, the size, weight and power (SWaP) of the electronic systems are minimized to extend the range of airborne platforms or allow ground vehicle transport with a wider range of operation. Direct spray cooling systems are enabling these programs with minimal SWaP budgets and harsh environmental requirements to use lower cost, high performance embedded electronics.

Posted in: Articles, Articles

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Applying Cognitive Memory to Pattern Recognition

CogniMem can be considered a true Artificial Intelligence device because it has been designed specifically for the purpose of learning, memorizing and recognizing.

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Deciphering the New SUMIT™ Specification

The new SUMIT specification is managed by the Small Form Factor Special Interest Group (SFF-SIG). SFF-SIG is a newly formed, non-profit industry group that develops, promotes, and supports small form factor circuit board specifications and related technologies. The group embraces the latest technologies, but also has a philosophy of maintaining legacy compatibility and enabling smooth transitions to next-generation interfaces.

Posted in: Articles, Articles

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CAD Tools: Breaking Barriers

With difficult economic times, CAD vendors are under more pressure than ever to provide customers with products that increase productivity, reduce time to market, and give them more value for their money. In our annual poll of CAD company executives, we found that new technology is the focus in helping customers break the barriers to efficient design with limited resources. Five years ago, we asked executives at leading CAD companies if, in five years, most design engineers would be using 3D design tools rather than 2D, and all of them said yes. Yet, there are still barriers that design engineers face in migrating from 2D to 3D. Jeff Ray, CEO of SolidWorks, believes one major barrier continues to be fear of change.

Posted in: Articles

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Micromachining with Lasers

Laser micromachining involves using light to remove material. Lasers can also be used in many other applications such as welding, marking, additive manufacturing and surface alteration, but these fall outside the definition. As a general rule, laser micromachining involves working on substrates that are less than 1 mm in thickness — usually much less — and feature sizes that are also less than 1 mm, with the lower end on the order of a few microns.

Posted in: Articles, Features, ptb catchall, Photonics

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Flowmeters Are Not All Alike

When it comes to choosing a flowmetering device, some users assume “one size fits all.” In reality, there are significant differences between flowmeter types, and each design has its unique “pros and cons.” The basis of proper meter selection is a general awareness of flow measurement science — and a clear understanding of your specific application requirements.

Posted in: Features, Articles

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