MEMs

Advances Toward Development of "Smart Dust" Biosensors

Progress has been made toward meeting several technical challenges in a continuing effort to develop “smart dust” sensors for remote detection of chemical and biological agents. Until now, the state of the art of laboratory-on-a-chip devices has been typified by microfluidic cartridges variously mounted in or connected to desktop or handheld devices. Smart dust sensors would be smaller: they would be submillimeter-sized devices, the implementation of which would necessitate levels of miniaturization and integration heretofore known only in biological systems.

Posted in: Briefs, Physical Sciences, Downsizing, Remote sensing, Chemicals, Biohazards
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Structural Composite Batteries

A continuing program of research and development is devoted to the design, fabrication, and testing of polymeric composite- material devices that are multifunctional in the sense that they both store electrochemical energy and bear mechanical loads. It is anticipated that if designed to exhibit sufficient structural and energy efficiencies, these devices could enable significant reductions in the weights of systems in which they could be used, by supplanting electrically inert structural components and conventional batteries while providing supplementary power for lightload applications.

Posted in: Briefs, Physical Sciences, Aircraft structures, Body structures, Batteries, Energy storage systems, Composite materials, Polymers
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Mechanical Aspects of Structural Composite Batteries

In furtherance of the development described in the immediately preceding article, an experimental study focusing on mechanical aspects of structural composite batteries was performed. In this study, battery component materials, battery components, and fully assembled structural composite batteries were subjected to tensile tests. Limited electrochemical tests were also performed.

Posted in: Briefs, Physical Sciences, Aircraft structures, Body structures, Batteries, Energy storage systems, Composite materials, Test procedures
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Sensor Validation Using Nonlinear Minor-Component Analysis

Aconcept of sensor validation using nonlinear minor-component analysis (NLMCA) has been proposed as a theoretical basis of a sensor fault-detection-and isolation (FDI) module in a fault-tolerant control system of an aircraft jet engine or other complex physical plant. As used here, "sensor validation" signifies, loosely, analysis of the readouts of all the sensors in such a system for the purpose of identifying which (if any) sensors are faulty and, if possible, the magnitudes of the faults. Once a fault in a sensor or any other component was detected and isolated, the fault-tolerant control system would automatically reconfigure itself to compensate for the effect of that and any other faults so as to maintain acceptable (or as nearly acceptable as possible) control performance of the plant even in the presence of the faults. In the case of a faulty sensor, the system would utilize any available analytical redundancy among all sensor signals to estimate the value of the physical quantity desired to be measured by that sensor, and that value would then be used for feedback control.

Posted in: Briefs, Information Technology, Finite element analysis, On-board diagnostics, Sensors and actuators
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Enlightened Multiscale Simulation of Biochemical Networks

A continuing research project is dedicated to development of mathematical and software infrastructure in support of post genomics research in systems biology. One near-term objective of the project is to contribute to deeper understanding of the organizational principles of biological networks. A distinguishing theme of this project is a focus on scalable methods of robustness and theoretically sound methods of the use of experimental data to validate (or invalidate) models; this theme stands in contrast to the heretofore prevalent theme of relying purely on simulation.

Posted in: Briefs, Information Technology, Mathematical models, Computer software / hardware, Biological sciences, Product development, Research and development
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Single Board Computer

VersaLogic Corp. (Eugene, OR) offers the Sidewinder, a single board computer (SBC) designed to complement their existing EBX product line. The Sidewinder is a reliable fanless design featuring a robust array of onboard I/O functions including 8-channel 12- bit analog input, and 32- channel digital I/O. The RoHS-compliant Sidewinder includes VersaLogic’s proprietary SPX™ expansion interface that allows users to easily add a wide range of low-cost I/O options to the platform.

Posted in: Products, Products, Embedded Technology, Board-Level Electronics, Electronics & Computers
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Boundary Scan Test System

ASSET InterTech (Richardson, TX) has expanded its ScanWorks® system by adding signal integrity analysis applications that support Intel's next-generation embedded instrumentation technology, Intel® IBIST (Interconnect Built In Self Test). ASSET's ScanWorks environment with support for IBIST consists of software applications for validating and analyzing signal integrity on buses through margining and BERT techniques. ScanWorks interfaces to embedded instruments to validate boardlevel and system-level designs that feature high-speed buses such as PCI Express and Intel's QuickPath interconnect. The system features a suite of fault diagnostic tools.

Posted in: Products, Products, Electronics & Computers
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13 GHz Test System

Lecroy® Corporation (Chestnut Ridge, NY) has introduced a 13 GHz test system comprised of the SDA 13000 Serial Data Analyzer, the D13000PS Active Differential Probe, and a suite of debug and analysis tools. The new system provides powerful methods for next-generation serial data bus design, development, and debug.

Posted in: Products, Products, Embedded Technology, Board-Level Electronics, Electronics & Computers
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Avionics Network

ALT Software, DiSTI, Green Hills Software, and RTI (Santa Clara, CA) have combined to introduce a robust solution for mission-critical data distribution and display. The real-time integrated avionics network is for remotely piloted vehicles as well as other defense and aerospace applications.

Posted in: Products, Products, Embedded Technology, Board-Level Electronics, Electronics & Computers
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32 GB 2.5-inch SATA Solid State Drive

The new 32 GB SATA Solid State Disk (SSD) Drive from Ridata (Diamond Bar, CA) is almost twice as fast as a conventional hard disk drive. The data transfer rates are 60MB/s for maximum sequential read and 48MB/s for maximum sequential write. It requires a five-volt power supply.

Posted in: Products, Products, Electronics & Computers
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