MEMs

Army Equips Vehicles With Electronic Stability Control

Soldiers laud the ballistic protection Mine Resistant Ambush Protected (MRAP) vehicles that protect them against underbody threats, but now a brand-new MRAP feature, the first of its kind for the Army, will help maximize warfighter safety and survivability.

Posted in: News, Defense
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Sandia Labs Uses Davis Gun to Test B61-12 Bomb

Three years of design, planning, and preparation came down to a split second, a loud boom and an enormous splash in a successful impact test of hardware in the nose assembly of an unarmed, mock B61-12 nuclear bomb. The Sandia National Laboratories test also captured data that will allow analysts to validate computer models of the bomb, part of Sandia’s decade-long effort in the B61-12 Life Extension Program (LEP). An LEP is a way to extend the life of an aging weapon without adding new military capability. The B61-12 LEP is an $8.1 billion National Nuclear Security Administration (NNSA) program coordinated across the nation’s nuclear security enterprise.

Posted in: News, Defense
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Compact UV Lasers Could ID Substances from a Distance

For soldiers in the field, the ability to identify an object or substance based on how it responds to light could mean the difference between life and death. They could, for example, determine from a safe distance if an approaching person or vehicle is carrying an explosive device or dangerous biological agent.

Posted in: News, Defense, Lasers & Laser Systems
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White Light LED Source

Excelitas Technologies Corp. (Waltham, MA) has introduced the X-Cite 120LEDmini – a compact white light LED source for fluorescence imaging applications. Through direct coupling, the X-Cite 120LEDmini provides efficient optical output and exceptional uniformity. The X-Cite 120LEDmini offers broad-spectrum coverage ranging from 370nm to 700nm with high excitation power for popular fluorophores including DAPI, GFP, mCherry, and Cy5. Through USB, TTL or manual control via speedDIAL, a standard component included with the system, the X-Cite 120LEDmini offers convenient control options for any instrument configuration, from basic to fully automated operation.

To learn more click here.

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Self-Supporting Sponge Connectors

Fujipoly’s (Carteret, NJ) Self-Supporting Sponge Connectors are ideal for connecting LCD panels to circuit boards with a very low deflection force. Each connector is made from an economical and highly reliable Zebra® core that is sandwiched between two soft sponge supports. The silicone rubber “supports” create a larger base width and eliminate the need to install a separate holder. The connector is available in a multitude of widths to accommodate LCD’s with a minimum glass lip overhang of 0.060”/1.5 mm. The carbon-based ZEBRA® connectors can be ordered with 140, 240 or 500 conductive layers per inch and provide a current carrying capacity of .050 mA per .040” x .040” pad.

To learn more click here.

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Plastic Diffractive Optical Elements

If diffractive optical elements are used at low and medium laser power, then plastic elements may be sufficient instead of using fused silica elements. Laser Components (Bedford, NH) offers Holo/ORs plastic DOEs in different materials: polycarbonate, PMMA, Zeonex, and Zoner. They are produced in large quantities using an injection molding process. Plastic DOEs are used in particular in systems of mass production. For the most part, customers have optics made that feature their required specifications. Holo/OR offers inexpensive tooling and low production costs. Multi-spot DOEs and homogenizers are currently available as standard elements for the wavelengths 850 nm and 532 nm.

To learn more click here.

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2-D Vision Measuring Systems

Mitutoyo America Corporation (Aurora, IL) has announced the latest version of the Quick Image series 2-D vision measuring system. Two new systems with advanced one-click measuring functionality – available with 0.2X or 0.5X magnification – have been added to the lineup. The Quick Image Telecentric lens design offers a wide field of view and depth of focus, enabling easy measurements on workpieces with multiple step heights. A new one-click measurement function enables measurement and tolerance judgment with a single mouse click. Measurement results are displayed in real time directly on the video image, which enables tolerance limits to be seen at a glance.

To learn more click here.

Posted in: Products
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Fabricating Transparent and Stretchable Supercapacitors Based on Wrinkled Graphene Electrodes

Stretchable electronic devices, including solar cells, light-emitting diodes, batteries, and textile supercapacitors, have been developed to retain their functions even when under large strains (up to 40%). Some transparent solar cells, batteries, and supercapacitors have also been developed. However, most of the currently developed electrodes and the associated supercapacitor cells cannot be both transparent and stretchable.

Posted in: Briefs, Aerospace, Defense, Manufacturing & Prototyping, Batteries, Electronic equipment, Ultracapacitors and supercapacitors, Fabrication
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Modular Exhaust Design and Manufacturing Techniques for Build-to-Order Muffler Systems

Managing the acoustic signature of military vehicles can play a critical role in the safety of soldiers. Low-frequency sounds propagate through the atmosphere, resulting in unacceptable acoustic vehicle detection ranges, requiring relatively large silencer structures to mitigate. Currently, these requirements are met by using a custom muffler that is hand-assembled using low-volume prototyping manufacturing techniques. This method results in significant engineering and manufacturing time.

Posted in: Briefs, Aerospace, Defense, Manufacturing & Prototyping, Design processes, Manufacturing processes, Noise, Mufflers, Military vehicles and equipment
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Silicon Microsphere Fabrication

The efficiency and methodology of coupling light into microcavities has improved exponentially in the last decade. One such advancement is coupling light onto silicon microspheres. The material, size, and shape of a silicon microsphere are ideal for optical devices. Silicon microspheres are not the primary material used to fabricate microspheres for optical coupling because current methods used for microsphere fabrication cannot produce single-crystal silicon in the 16-μm scale, which is best for current optical technology.

Posted in: Briefs, Aerospace, Defense, Manufacturing & Prototyping, Optics, Fabrication
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