Articles

Thin Cavity Cooling of Electronic Circuitry

Anovel tested technology for cooling electronic circuitry is also useful in many other industries. The method is called “Thin Cavity Fluidic Heat Exchanger”(TCFHE). Technology details can be viewed at the U.S. Patent and Trademark Web site, at application 20100078155.

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Embedded Video Requirements Drive New Mezzanine Card Format

Sophisticated graphics have hit the embedded systems world and are increasingly demanded by military, aerospace, industrial, and medical applications. The problem, of course, is that graphics are challenging even in the desktop world. In embedded designs, they present unique issues that include very specific, non-standard functionality.

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Influence of Position Measurement on Accuracy in 5-Axis Machining

Productivity and accuracy are important attributes in the competition for machine tools. Five-axis machining provides considerable potential for increasing productivity. In many cases it permits higher metal removal rates than 3-axis machining. Production times can be significantly shortened thanks to a reduction of time required for resetting, for example, or through multi-operation machining in one setup. In any case, with increasingly complex workpiece geometry, 5-axis machining is becoming an indispensable part of the machining process.

Posted in: Articles, Test & Measurement, Machining processes, Productivity

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Changing How We Fly Aviation Technology Today and Tomorrow

The Federal Aviation Administration (FAA) reported that last year, U.S. and foreign air carriers transported an estimated 161.8 million passengers between the United States and the rest of the world. The FAA estimates there will be one billion passengers in 2024. So how does the aviation industry handle the prospect of a billion passengers with rising fuel prices, crowded airspace, out-dated systems, and increasing environmental concerns? The answer is new technology that is both in use today, and on the horizon for air travel tomorrow.

Posted in: Articles, Aviation, Environmental technologies, Research and development, Composite materials, Aircraft

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Bacteria Provide Cleanup of Oil Spills and Wastewater

NASA partnership leads to innovation on the microbial scale.Given the size of our planet and its wealth of resources, it is easy to forget that those resources are finite. As Earth’s human population continues to grow, the questions of how to effectively limit and recycle waste, avoid environmental contamination, and make the most of water and fuel reserves become all the more pressing.

Posted in: Articles, Green Design & Manufacturing, Water pollution, Water treatment, Bacteria, Waste materials

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Camera Trends 2012: Speed, Resolution, and Software

Cameras are still an important technology feature in manufacturing and inspection applications, but they are also increasingly valuable in non-traditional sectors. As part of June’s OEM Camera Directory & Guide, we look at three factors driving imaging tools: speed, resolution, and software.

Posted in: Articles, Imaging, Computer software and hardware, Imaging and visualization, Optics, Reliability

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Battery Options for Uninterruptible Power Supplies

The lead-acid battery was invented by the French physicist Gaston Planté in 1859, and is one of the oldest rechargeable battery technologies. For over 150 years, it has been the mainstay when a high-energy-capacity battery was required, and represents 70% of the secondary (rechargeable) batteries used worldwide. Even today, with the advent of higher-power-density and low-weight batteries, the lead-acid battery in all of its forms is the most commonly used battery type.

Posted in: Articles, Batteries, Battery cell chemistry, Lead-acid batteries

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Fiber Optic Oxygen Sensors — How Do They Work?

Fiber optic oxygen sensors use the fluorescence of a chemical complex in a sol-gel to measure the partial pressure of oxygen. The pulsed blue LED sends light, at ~475 nm, to an optical fiber. The optical fiber carries the light to the probe. The distal end of the probe tip consists of a thin layer of a hydrophobic sol-gel material.

Posted in: Articles, Features, ptb catchall, Photonics, Fiber optics, Sensors and actuators, Chemicals, Oxygen

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LED Backlighting From the Sidelines to Center Stage in Under 30 Years

By Steve Sievers, Lumex, Palatine, IL Though often drowned out by the excitement generated by general illumination LEDs, LED backlighting technology has evolved dramatically over the past 30 years. Continued advances in design and performance have allowed each new generation of LED backlighting technology to significantly grow the number of relevant applications. This trend continues in 2012, with the introduction of cutting-edge flexible backlight technology which allows LED backlights to be cut in custom shapes and used on curved surfaces, opening the door to a number of new applications.

Posted in: Articles, Lighting, Powering & Controlling LEDs

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Using IC Sockets in an LED Test System

By Ila Pal, Ironwood Electronics, Eagan, MN For more than half a century, the semiconductor industry has been governed by a commonly known principle described as Moore’s Law. This “law” predicts that through technological advancement a doubling of the number of transistors per integrated circuit will occur within a given geometric area on regular 18 month intervals. The realization of this doubling effect over time has resulted in an ever-widening range of semiconductor (IC) devices exhibiting increases in functionality and processing speed, combined with an increased demand for power and effective thermal management. This doubling effect has also driven a matching rapid evolution in IC package types (microprocessors, LEDs, memory packages, etc.) and I/O interface configurations.

Posted in: Articles, Lighting, Manufacturing & Prototyping

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