MEMs

Lab Research Mimics Blast-Induced Brain Trauma in Soldiers

Researchers have developed a procedure to mimic in laboratory experiments a form of brain trauma commonly seen in combat veterans, and findings suggest a new diagnostic tool for early detection and a potential treatment.

Posted in: News, Defense
Read More >>

Sandia Works on Nuclear Weapon Life Extension Program

Sandia National Laboratories is doing what it hasn’t done in decades: extending the life of a nuclear warhead at the same time the U.S. Air Force develops a replacement cruise missile that will carry the weapon. The goal of the W80-4 Life Extension Program (LEP) is refurbishing the W80 warhead with replacement components for aging technology and components that have limited lifespans. Sandia’s California site is responsible for development of non- nuclear components and subsystems and for systems integration. Lawrence Livermore National Laboratory is responsible for the refurbishment of the nuclear explosive package and joint development of detonators with safety features.

Posted in: News, Defense
Read More >>

New Anechoic Chamber Makes Room for Larger Vehicle Tests

The Army recently increased its ability to test radio frequencies used by soldier technologies when it opened one of the largest anechoic chambers on the East Coast. The Radio-frequency Electro-Magnetic Compatibility and Antenna Test (REMCAT) laboratory provides additional testing space required for larger and mobile vehicle-mounted projects. This space allows the U.S. Army Communications-Electronics Research, Development and Engineering Center (CERDEC) to test vehicles in a wide variety of radio frequency spectrum tests, allowing maximum function while maintaining accurate performance measurement.

Posted in: News, Defense
Read More >>

Disappearing Carbon Circuits on Graphene Could Have Security Uses

Using carbon atoms deposited on graphene with a focused electron beam process, Georgia Institute of Technology professor Andrei Fedorov and collaborators have demonstrated a technique for creating dynamic patterns on graphene surfaces. The patterns could be used to make reconfigurable electronic circuits, which evolve over a period of hours before ultimately disappearing into a new electronic state of the graphene. Graphene is also made up of carbon atoms, but in a highly-ordered form.

Posted in: News, Defense
Read More >>

Remote-Controlled Weapons Augment Soldiers on Perimeter Security

Remotely-controlled weapons systems have drastically reduced the number of soldiers needed for perimeter security at an expeditionary base camp.

"Every Soldier I have assigned to securing the perimeter is one I don't have that can execute support missions," said Lt. Col. Raphael Heflin, commander, 142nd Combat Service Support Battalion, or CSSB, 1st Armored Division.

Posted in: News, Defense
Read More >>

IR Filter Sets

LASER COMPONENTS (Bedford, NH) has begun introducing pyroelectric and lead salt detectors to the market. With this in mind, they also now offer low-cost accessories such as new IR filter sets. Fourteen standard bandpass filters are sawn up hexagonally and integrated into pluggable filter mounts with an inner diameter of 8.5 mm, with an aperture of 6 mm. Wavelengths range from 3.33 μm to 7.30 μm, having full width half maximum values from 60 nm to 600 nm. These filters use silicon substrates providing blocking to 10μm, with thirteen out of the fourteen filters being angle optimized.

Posted in: Products
Read More >>

Lighting Test System

G&H Instruments (Orlando, FL) has introduced the new and improved OL 770-NVS Night Vision Display Test and Measurement System for the measurement of NVG-compatible lighting and displays. With all of the features of the original system, the new 770-NVS allows for NVIS compatible testing of Tungsten backlit devices without the need for additional filters and system calibrations. This is achieved by utilizing a concave, aberration-corrected grating spectrograph specifically designed to target the NVIS wavelength range as defined in MIL-L-86762A Appendix B / MIL-STD-3009.

Posted in: Products
Read More >>

Optical Wavelength Meter

Bristol Instruments, Inc. (Victor, NY) recently introduced the 828B Optical Wavelength Meter that can measure the absolute wavelength of WDM lasers to an accuracy of ± 1 pm. This accuracy is maintained over long periods of time by calibrating with a built-in wavelength standard resulting in a confidence level of 99.7%. What makes the 828B system special is that it measures wavelength at a rate as high as 1 kHz. What’s more, the speed of the 828B system provides time resolution as short as 1 ms, resulting in more detailed wavelength characterization of components such as tunable WDM lasers.

Posted in: Products
Read More >>

Ultraviolet DLP Chip

Texas Instruments (TI) DLP® Products (Dallas, TX) has released the DLP9500UV chipset, a high resolution ultraviolet (UV) DLP chip designed to quickly expose and cure photosensitive materials in industrial and medical imaging applications, including direct imaging lithography, 3D printing, laser marking, ophthalmology, phototherapy and hyperspectral imaging. Two million micromirrors (1920 x 1080) enable end equipment to image large exposure areas with few print heads, and it supports print feature sizes approaching 1µm. It is optimized for exposure in the 363 – 420 nm wavelengths.

Posted in: Products
Read More >>

Ontology for Insider Threat Indicators

The study of insider threat presents some of the most complex challenges in information security. Even defining the insider threat has proven difficult, with interpretations and scope varying depending on the problem space. Organizations have begun to acknowledge the importance of detecting and preventing insider threats, but there is a surprising lack of standards within the insider threat domain to assist in the development, description, testing, and sharing of these techniques. For many organizations, establishing an insider threat program and beginning to look for potentially malicious insider activity is a new business activity.

Posted in: Briefs, Aerospace, Defense, Information Technology, Security systems, Data management
Read More >>