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Fabrication of Lightweight Armored Doors for HMMWVs

A document describes a concept for fabricating lightweight armored doors for the Army’s high-mobility multipurpose wheeled vehicles (HMMWVs). Essentially, the concept is to reinforce high-hard (HH) steel armored doors used on some HMMWVs with a laminated, woven, high-tensile-strength glassfiber/ polyester-matrix composite that has performed well as armor material in previous military applications. A fabrication procedure for implementing the concept, described in the document, can be summarized as follows:

Posted in: Briefs, Manufacturing & Prototyping, Doors, Fabrication, Composite materials, Glass fibers, Steel, Military vehicles and equipment
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AFRL’s Demonstration and Science Experiments Mission

A document describes the Air Force Research Laboratory's Demonstration and Science Experiments (DSX) mission, dedicated to research needed to advance the ability to operate spacecraft in the harsh radiation environment of medium earth orbit (MEO). The DSX spacecraft, to be launched in late 2009 into an orbit ranging in altitude from 6,000 to 12,000 km, is designed to carry instruments pertinent to studies in three categories:

Posted in: Briefs, Physical Sciences, Research and development, Spacecraft
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Embedded Security: Down to the Silicon

Embedded applications are increasingly going online. With the introduction of new embedded technologies that utilize a wide variety of communications options from Ethernet to Wi-Fi and ZigBee, there is a pressing need to secure these applications against the same problems that are inherent in any networked application.

Posted in: Articles, Articles, Electronics & Computers, Cyber security, Embedded software, Telecommunications systems, Wireless communication systems
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Next-Gen Networks Drive AdvancedTCA Deployments

The evolution of technology and the never-ending thirst for higher bandwidth from industries and applications are pushing the limits of existing standards. The latest processors run faster and integrate more features, thus requiring greater power, more efficient cooling design, and a larger board size. The explosion of bandwidth in enterprise local-area networks (LANs) brought on by the deployment of gigabit Ethernet, 3G/WiMAX mobile communication, and wireless network systems and the growth of triple-play or multi-play network services, have all fueled the demand for servicing greater amounts of data traffic.

Posted in: Articles, Articles, Electronics & Computers, Computer software / hardware, Data exchange, Performance upgrades
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Secure Your Embedded Wireless Network

Connecting devices like medical instruments, weigh scales, printers, sensors, and other embedded devices to wireless networks allows the user to gain unprecedented freedom and mobility without the need for cumbersome cabling. Traditionally, many of these devices have been confined to a certain area, and the applications have been prone to human error when used by someone to manually collect information and then transfer it to a computer.

Posted in: Articles, Articles, Electronics & Computers, Cyber security, Wireless communication systems
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Encapsulated Video “Brick” Bolsters Video Surveillance Along Boarder

Increasingly dependent on continuous video monitoring and recording, even today's more sophisticated security surveillance systems are often plagued by reliability problems. In some ways, more complex video systems are susceptible to signal and other dependability problems simply because they are multifaceted. Systems integrators may know what cameras and recorders to use in a given situation, but they also need to consider how subcomponents could play a critical role under certain conditions. A noisy switch or incompatible distribution amplifier (DA) can compromise the integrity of a video security system yet go undiagnosed or even undetected until the horse is already out of the barn.

Posted in: Application Briefs, Application Briefs, Electronics & Computers, Imaging, Security systems, Surveillance
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UDE 2.0.7 and UAD2 Debug Tools for Microcontrollers

A debug tool specially tailored to support the individual features of Infineon's new scalable XC2200 microcontoller family was recently released by PLS Development Tools (San Jose, CA). Infineon used the modular components-based Universal Debug Engine (UDE) 2.0.7 and the Universal Access Device 2 (UAD2) family of units from PLS to test its first XC200 microcontrollers and for preparation of software drivers and application examples. Both the UDE 2.0.7 and the UAD2 provide unlimited support for all internal debug resources and peripheral sets of Infineon's new XC200 microcontrollers. The integrated FLASH/OTP programming function of the UDE 2.0.7 enables high speeds in the entire FLASH, but also for external devices from AMD, Intel, ATMEL, and other JEDEC-compatible FLASH memories.

Posted in: Products, Products, Electronics & Computers
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Double-Sided Press-Fit Contacts for Mezzanine Applications

ERNI Electronics (Midlothian, VA) offers a portfolio of connectors from its unshrouded header system series (STL family). The singleor double-row versions are available in many different connection lengths and termination types including press-fit, dip-solder, THR, as well as right-angle versions. These male multipoint connectors are based on 0.025" × 0.025" pin standard and can be combined with a variety of compliant products. Suited for use in mezzanine circuit boards that require unshrouded headers with a 0.100"(2.54-mm) pitch and stamped press-fit zones on both sides, the connectors eliminate the need for a cable connection or an indirect connector link.

Posted in: Products, Products, Electronics & Computers
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16-bit A/D Transient Recorder PCI Cards

Strategic Test (Woburn, MA) has released six new Transient Recorder cards in the UF2- 4700 series. Using multiple 16-bit ADC's for true simultaneous sampling, the UF2-4700 cards are available with a choice of maximum sampling rates of 100 kS/s, 250 kS/s, and 500 kS/s, and come in 8- or 16- channel configurations. Each channel contains an independent amplifier that allows the user to program it with the voltage range to best match each sensor. Eight ranges are provided from ±50 mV to ±10 V. A self-calibration feature ensures the removal of any DC offsets prior to recording. Based on the new PCI-X (66 MHz/32-it PCI) bus-based UF2 series carrier card, these cards can continuously transfer data to the host PC at up to 112 mega samples (225 Mbyte) per second.

Posted in: Products, Products, Electronics & Computers
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Single-Board Computer Delivers High-Performance I/O

Mosaic Industries (Newark, CA) has released the PDQ Board™, a compact I/O-rich single board computer. The PDQ Board™ includes 1 megabyte of memory, a Motorola 68HCS12 processor, dozens of analog and digital I/O lines, and versatile serial communications links onto a 2.5" × 4" board. It delivers 8 digital I/O lines with counter/timer capabilities, 8 pulsewidth modulated (PWM) digital output signals, and 8 general purpose digital I/O lines. Additional I/O includes 16 analog inputs with 10-bit resolution, dual RS232/485 ports with speeds up to 256 KBaud, and synchronous SPI and IIC serial interfaces.

Posted in: Products, Products, Electronics & Computers
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