Defense

Army Equips Stryker Unit With New Communications Technology

The Army's Stryker vehicle, designed to quickly move soldiers into a combat zone, is swift and mobile. Now its communications equipment will be, too.

Posted in: News, Wireless

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Remediation and Prevention of Moisture in Electronics

Receiving product complaints and returns may be your first indication that there is a problem with moisture in your electronic product. Moisture in sealed electronics may result in shorting, attenuation problems, mirror and lens fogging, intermittent functionality, and catastrophic failure. The experience your customer has with your product directly affects your brand integrity, which in turn affects sales and profits. Taking steps to correct a moisture issue or prevent it early on in the design stages can help you make large strides in reclaiming or protecting your brand position.

Posted in: White Papers, Electronics

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New Serenity Payload Detects Hostile Fire

Two government-developed sensors are working together to increase the security of deployed soldiers. The Firefly and Serenity sensors employ government developed algorithms, software, and hardware to locate hostile fire around a base. The technology, a joint effort between the Army Aviation Research, Development and Engineering Center, or AMRDEC, and the Army Research Lab, referred to as ARL, has been under development for more than a decade.

Posted in: News, Cameras, Optics, Photonics, Detectors, Sensors

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Wireless Devices Used by Pilots are Vulnerable to Hacking

A new class of apps and wireless devices used by private pilots are vulnerable to a wide range of security attacks, which in some scenarios could lead to catastrophic outcomes, according to computer scientists at the University of California, San Diego and Johns Hopkins University. They examined three combinations of devices and apps most commonly used by private pilots to access the same information available to the pilot of a private jet at a fraction of the cost. All have to be paired with tablet computers to display information.

Posted in: News, Aviation, PCs/Portable Computers

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Foldable Material Can Support Many Times its Weight

Researchers at Drexel University and Dalian University of Technology in China have chemically engineered a new, electrically conductive nanomaterial that is flexible enough to fold, but strong enough to support many times its own weight. They believe it can be used to improve electrical energy storage, water filtration, and radio frequency shielding in technology from portable electronics to coaxial cables.

Posted in: News, Energy Storage

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Scientists Turn Handheld JCAD into Dual-Use Chemical, Explosives Detector

Scientists at the U.S. Army Edgewood Chemical Biological Center recently gave the Joint Chemical Agent Detector (JCAD) the ability to detect explosive materials. The original JCAD was developed and fielded to U.S. Forces nearly 25 years ago, to serve as a portable, automatic chemical warfare agent detector. Currently there are approximately 56,000 chemical warfare agent detecting JCADs in service within the Department of Defense. However, recent needs have required scientists to find ways to create a similar portable technology to detect explosive materials. According to the Army, "Future Army forces require the capability to provide support to unified land operations by detecting, locating, identifying, diagnosing, rendering safe, exploiting, and disposing of all explosive ordnance, improvised explosive devices, improvised/homemade explosives, and weapons of mass destruction." Funded through an Army Technology Objective (ATO) program starting in 2010, under the requirement to assess which existing detectors could also detect explosives, ECBC's Point Detection Branch began to research different options. Since so many JCADs are already in the hands of warfighters across all four services, the team explored the possibilities with that technology. ECBC Point Detection Branch handled the technical evaluation of the unit in collaboration with Smiths Detection, who is building the parts for the new capability. While working to make the JCAD an explosives detector, the team had to overcome several challenges. On a programmatic level, the ATO requirement had restrictions against modifying the existing JCAD hardware. Also, the JCAD needed to maintain its original chemical warfare agent detector purpose. Aside from the ATO requirements, making a chemical warfare agent detector into an explosives detector had some scientific challenges. The original JCAD is designed to detect vapors. However, explosive materials are usually low vapor pressure solids. ECBC scientists had to figure out how the JCAD could detect solid explosive materials, without changing the hardware or original intent of the detector. Given these parameters the scientists sought to determine how to modify this detector while essentially keeping it the same. "Many of the emerging chemical threats and explosives share the challenge of presenting little to no detectable vapor for sampling. By conducting research into the detection of solid explosive residues, we have learned valuable lessons that are equally important for detecting nonvolatile solid and liquid chemical agent residues as well," said Dr. Augustus W. Fountain III, senior research scientist for chemistry. The add-on pieces are a new JCAD Rain Cap with a Probe Swab and an inlet. Within the JCAD itself, scientists added two on-demand vapor generators: a calibrant and a dopant. The dopant changes the chemistry of the detector so that it can detect explosives easier. To convert an ordinary JCAD into a JCAD Chemical Explosive Detector (JCAD CED), the existing rain cap is replaced with one that has a new inlet. Once in place, scientists wipe any surface using the probe swab, which then retracts back into the inlet. With a simple button push, the probe swab tip with the explosives sample heats up to a certain temperature, vaporizing the explosive residue. These additional features allow an ordinary JCAD to now have the role of a portable, automated explosives detector. The swab allows users to pick up often-invisible residue from any surface and analyze it. The explosive residue can be transferred and easily detected using the instrument. The JCAD CED can already detect roughly a dozen compounds including TNT, RDX and EGN. Future efforts could increase the number of detectable compounds. Scientists plan to determine the amount of explosives that can be detected and develop a concept of operations. Other goals include developing a methodology for detecting homemade explosives, and reaching a technology readiness level 6. JCAD CED will be demonstrated in a fiscal year 2015 military utility assessment. Source:

Posted in: News, Detectors, Sensors

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Adaptive Zoom Riflescope Prototype Has Push-Button Magnification

When an Army Special Forces officer‑turned engineer puts his mind to designing a military riflescope, he doesn’t forget the importance of creating something for the soldiers who will carry it that is easy to use, extremely accurate, light‑weight and has long‑lasting battery power. The result is the Rapid Adaptive Zoom for Assault Rifles (RAZAR) prototype, developed by Sandia National Laboratories optical engineer Brett Bagwell. At the push of a button, RAZAR can toggle between high and low magnifications, enabling soldiers to zoom in without having to remove their eyes from their targets or their hands from their rifles.

Posted in: News, Optics, Photonics

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