Home

Multi-core Industrial Servers

Kontron (Poway, CA) has released 2U and 4U KISS industrial servers that bring Intel® Core™2 Duo processor performance to PICMG 1.0 based PCI/ISA applications. The ultra quiet (<35 dB) industrial servers are designed for applications that require high data processing performance without the need for high-speed PCI Express features. Designed around the Intel® 945G chipset with 1066 MHz front side bus and Intel® ICH7 I/O controller hub, the Kontron KISS PCI-759 industrial servers offer scalable processor performance based on the Intel® LGA 755 socket up to the E6400 (2 × 2.16 GHz) Intel® Core™2 Duo processor.

Support for up to 4 GB of DDR2 dual channel RAM is available. With a TDP of only 65 Watts, the Intel® Core™2 Duo processor brings double the performance with power consumption similar to an Intel® Pentium® 4 processor. The Kontron KISS PCI-759 servers are ideal for either upgrading existing applications or for implementing new, power-sensitive industrial PCI/ISA systems. The Kontron KISS PCI-759 industrial servers offer a full range of I/O interfaces for maximum application flexibility: up to 4 × 3Gb/s SATA II for fast hard drive access, 2 × GbE, 7 × USB 2.0, and one parallel and two serial interfaces.

For Free Info Visit Here.

Posted in: Products, Products, Electronics & Computers
Read More >>

Laser-Based System for Measuring and Analyzing Vibrations

A system for noncontact measurement and analysis of vibrations of an electronic circuit board or a similar lightweight, nominally flat, rectangular object has been developed. This system, which utilizes laser displacement sensors, offers an important advantage over a traditional vibration- measurement system that utilizes accelerometers mounted on the vibrating object under test: Accelerometers are not suitable for vibration testing of a lightweight object because they contribute mass to the object and thereby alter the dynamic behavior of the object and thereby, further, give rise to errors in vibration-test data. In contrast, the laser displacement sensors in the present noncontact system do not contribute mass and do not significantly alter the dynamics.

Posted in: Briefs, Electronics & Computers
Read More >>

Testing Silver-Coated Nylon Fibers as Electrical Conductors

Tests have been performed in an effort to gain understanding of electrical and mechanical properties of silver-coated nylon fibers subjected to stresses and strains and exposed to various environmental conditions. This effort is part of a larger effort to develop electro-textiles ("e-textiles") [electrically conductive textiles] that could be incorporated into future Army combat uniforms and used therein to couple electrical power and signals between electronic devices. Understanding of the effects of stresses, strains, and environmental conditions is important because of a need to ensure adequate performance of e-textiles under the widely varying, harsh conditions to which military uniforms are exposed when worn in extreme climates, during laundering, and during storage at high temperatures.

Posted in: Briefs, Materials
Read More >>

Improvements in Measurement of Permeability and Permittivity

The two-transmission method is an improved method of determining, from microwave measurements, the complex permeability and complex permittivity of a sample of a material typified by a lossy dielectric or a magnetic radar absorbing material. The two-transmission method is so named because it involves two microwave transmission- measurement runs: one on the sample alone and one on a two-layer stack comprising the sample plus a layer of an acrylic material that has known permittivity and permeability. The name of the two-transmission method also serves to distinguish it from a prior method that involves microwave-reflection measurements with which errors have been associated.

Posted in: Briefs, Physical Sciences
Read More >>

Biaxial and Shear Testing Apparatus With Force Controls

An apparatus for in-plane biaxial tension/compression and in-plane shear testing of fabrics, other flexible sheet materials, or relatively rigid thin plate materials has been invented. The apparatus is capable of applying, to a sheet material specimen, a controlled tensile or compressive force along each of two directions in the plane of the specimen. The force along each direction can differ from the force along the other direction. The directions of the applied forces can be orthogonal or can be set at an oblique angle, depending on the combination of stresses required to be applied to the specimen. Thus, depending on the angle between the applied-force directions, the sense (tensile or compressive) of each applied force, and the magnitude of each force, the specimen can be subjected to almost any combination of in-plane shear and biaxial tension/compression loading.

Posted in: Briefs, Mechanical Components
Read More >>

Effects of High-Power Microwave Pulses on Electronic Systems

A five-year program comprising several coordinated research efforts was devoted to increasing understanding and developing capabilities for computational modeling of the effects of highpower microwave (HPM) radiation upon electronic circuits and upon systems that comprise or include electronic circuits. The HPM radiation of primary interest in this program included both narrow-band and ultra- wide-band (UWB) pulsed radiation. Whether aimed at electronic equipment deliberately or inadvertently, either type of radiation can, potentially, cause damage and/or adversely affect operation. The knowledge gained from this program can help in designing future electronic circuits and systems to be less vulnerable to damage and disruption by incident HPM/UWB radiation.

Posted in: Briefs, Electronics & Computers
Read More >>

Near-Field Light Lenses for Nano-Focusing of Beams of Atoms

Near-field light lenses for focusing beams of light and beams of atoms to spots having a width of no more than several nanometers are undergoing development. There are numerous potential applications for such lenses:

•A capability to focus beams of light to nanometer-sized spots is essential for development of proposed nanoscale optical devices (e.g., optical switches and logic gates) based on near-field optical interactions.

•A capability to focus beams of atoms to nanometer-sized spots could contribute to the development of nanophotonic devices, including quantum dots, which must be sized and positioned with precision.

Posted in: Briefs, Photonics, Glass, Nanotechnology, Refractory materials
Read More >>

Developments in Adaptive Filtering and System Identification

Progress has been made on several fronts in a continuing program of research oriented toward the development of real-time algorithms, and computer and control systems that utilize the algorithms, for adaptive filtering, prediction, and system identification with improved efficiency and numerical stability in applications that involve large numbers of channels and high filter orders. Potential applications include adaptive optics, optical communications, target tracking, image processing, blind identification and deconvolution in wireless communications, and active control of noise and vibration.

Posted in: Briefs, Photonics
Read More >>

Electrochromic Devices for Controlling Infrared Emissivity

Electrochromic devices that exhibited adjustable infrared emissivity were developed in a research program that was part of a larger effort to develop adaptive infrared camouflage. Inasmuch as objects that one seeks to conceal by use of camouflage are generally hotter than their surroundings, the basic idea of adaptive infrared camouflage is to reduce the infrared emissivity of an object of interest by a controllable amount so that, as viewed via an infrared camera, the object blends into the background.

Posted in: Briefs, Materials
Read More >>

Aligned MWCNTs as Thermal Conductors in Adhesive Joints

A developmental method of increasing the thermal conductance of an adhesive joint in a composite-material structure (or between a composite-material structure and another structure) involves exploitation of the inherently large thermal conductances of multi-wall carbon nanotubes (MWCNTs) along their longitudinal axes. A composite material of the type to which the method applies is, somewhat more specifically, a polymer-matrix/fiber composite. Typically, the matrix polymer is an epoxy, and the adhesive used to bond the composite-material structure may not be an epoxy. In any event, the thermal conductivity of the adhesive is about 0.3 W/mK — a value that is insufficient for many applications in which there are requirements for efficient transfer of heat.

Posted in: Briefs, Materials
Read More >>