Electronics & Computers

Broadband Surface Mount TO-5 Relays

The SGRF100 and SGRF300 are two ultraminiature broadband TO-5 relays from Teledyne Relays (Hawthorne, CA). The hermetically sealed RF relays feature a surface-mount solution and unique ground shield. They cover frequencies from DC to 4 GHz and perform over a wide temperature range of - 65°C to +125°C. The SGRF100 and SGRF300 are suited for many high-speed switching applications, including test and measurement equipment and high-volume semiconductor manufacturing test environments.

Posted in: Products, Products, Electronics & Computers
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Thin Film Thermoelectric Cooler

Nextreme (Research Triangle Park, NC) has developed the eTEC™, an advanced thin film embedded thermoelectric cooler designed to address thermal management needs of the electronics, photonics, bio-tech, defense, and aerospace industries. The eTEC functions as a miniature, solid-state heat pump and is ideal for cooling hot spots that result from localized areas of high heat flux on an IC. The device pumps a maximum heat flux of 150 W/cm2 with some designs delivering as much as 400 W/cm2. Nextreme's eTECs can operate in a high COP (Coefficient of Performance) regime and still pump a heat flux of 50-100 W/cm2.

Posted in: Products, Products, Electronics & Computers
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DSP Development Kit

VMETRO™ (Houston, TX) and Impulse Accelerated Technologies, Inc. (Houston, TX) have announced the V5+C, an advanced platform for rapid prototyping and algorithm development. The DSP development kit, which includes the latest generation Impulse C-to- VHDL compiler tools and a VMETRO PMC module based on the Xilinx® Virtex™-5 FPGA, allows military and industrial system developers to hardware- accelerate DSP algorithms and quickly prototype on FPGA within an ANSI C environment.

Posted in: Products, Products, Electronics & Computers
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Embedded Design and Technology Trends in the Military

A presidential election... the continuance or end of deploying troops in Iraq...Phoenix spacecraft landing on Mars...2008 could be an exciting year, so let's take a moment to look at a few trends that could affect the military embedded Commercial Off-the-Shelf (COTS) market.

Posted in: Application Briefs, Application Briefs, Electronics & Computers, Embedded software, Defense industry, Military vehicles and equipment
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Virtual Memory

Software developers face constant challenges. Not only must their code be functionally correct, it must also be reliable. In addition, competition among software vendors has taken software quality to significantly higher levels. Producing high-quality code has become one of the core requirements in the software industry today as it differentiates leading software vendors from the rest of the field.

Posted in: Articles, Articles, Electronics & Computers, Cloud computing, Computer software / hardware, Data management
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Understanding the Unique Requirements of Portable Data Acquisition Systems

Portable data acquisition applications have to meet a number of stringent requirements not present in traditional laboratory systems. Environmental conditions such as extremes in temperature, humidity, shock and vibration, are all factors that must be considered when selecting portable data acquisition equipment. Other concerns include whether the data acquisition equipment is capable of supporting the mix of particular sensors that will be used, as well as if there is adequate memory/storage to support the test.

Posted in: Articles, Articles, Electronics & Computers, Design processes, Data acquisition and handling, Test equipment and instrumentation
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Ultra-Wideband Recording Stretches to Keep Up With Digitizers

Systems designers are always pressing for faster and faster real-time performance, and data acquisition technology continues to evolve to meet that need. Currently available high-performance digitizers perform in the range of 2 to 5 GS/sec, and some new instruments are featuring 7 GS/sec digitizers for transient capture.

Posted in: Articles, Articles, Electronics & Computers, Data acquisition and handling, Electronic equipment, Performance upgrades
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Using Ethernet for Process Automation

The use of Ethernet communications in industrial applications is growing because it enables the real-time exchange of information between processing equipment and companies' Ethernet-based management systems. Some of the factors encouraging the use of Ethernet technology include:

the speed advantages over lower baud rate protocols the number of tools available for troubleshooting and optimizing a network, the broad base of competitive vendor support and solution options and the large pool of trained personnel who are familiar with the technology.

In addition, the ability to bridge existing proprietary communications schemes makes it possible to phase in the use of Ethernet rather than having to replace everything at once.

Posted in: Articles, Articles, Electronics & Computers, Architecture, Telecommunications systems, Automation, Industrial vehicles and equipment
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How PCI Express Is Changing Machine Vision

PCI Express is the peripheral bus now being adopted by next-generation PCs, servers, and industrial computers. It provides a scaleable, high-bandwidth, point-to-point pathway between peripheral cards and the computing core while retaining application software compatibility with previous generations. For machine-vision systems, the architecture and higher bandwidth of PCI Express yield major increases in achievable frame rate and image size as well as simplifying the implementation of multi-channel capability.

Posted in: Articles, Articles, Electronics & Computers, Architecture, Artificial intelligence, Computer software / hardware, Automation
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Variable-Data-Rate Speech Encoder

Avariable-data-rate (VDR) speech encoder has been designed to be interoperable with, and eventually to supplant, the many different voice encoders now used in military communication systems. Because these older systems were designed to utilize specific radio links with fixed and limited channel capacities, these systems utilize many different voice compression algorithms operating at various fixed rates. The incompatibility of these systems is an obstacle to interoperability. Emerging net-centric communication systems promise to provide connectivity to all military users, but compatible encoding will be necessary for interoperability, and encryption will be necessary for secure communications.

Posted in: Briefs, Electronics & Computers
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