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Optical Ethernet Transceivers

Marvell (Santa Clara, CA) offers the Alaska® family of secure optical Ethernet transceivers for datacenters and carrier networks. The four products cover applications at 10G, 1G, and 100Mb Ethernet speeds. The 88X2140M quadport and 88X2120M dual-port series of 10G transceivers feature XFI 10G serial and reduced XAUI interfaces to support SFP+ applications. These 10G PHYs are suitable for dense multi-port applications such as carrier class switches and routers. The 88E1542M and 88E1522M products are designed to support 1000BASE-X and 100BASE-FX in quad-port and dual-port configurations in space-efficient packages enabling high port densities as well as modular applications.

Posted in: Products, Products, Electronics & Computers
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16-bit Sensor Signal Conditioner

ZMDI (Dresden, Germany) has introduced a new 16-bit sensor signal conditioning IC (SSC). Developed for resistive bridge sensors, the ZSSC3017 combines high accuracy amplification, 16-bit precision analog-to-digital conversion, and an 18-bit DSP for linearization and calibration functions.

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One-Part High-Strength Epoxy

Master Bond’s (Hackensack, NJ) new Polymer Adhesive Supreme 10AOHT-LO is a single component, no mix, thermally conductive compound featuring superior electrical insulation and toughness. It meets NASA low outgassing specifications and has superior durability and dimensional stability. It is formulated to cure at elevated temperatures between 250°F and 300°F for 1 hour, and produces exceptional bonds for service over the wide temperature range of 4K to 400°F. These tough bonds are remarkably resistant to severe thermal cycling and many chemicals, including water, oil and various fuels.

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Low Noise Advances in RF & Microwave Signal Analysis Platforms

Spectrum measurements are essential to RF and microwave testing. The newer signal analyzers available today deliver performance far better than those of just a few years ago. The older classic swept spectrum analyzer is a super heterodyne downconverter, perhaps with a high band front end. This downconverter feeds a filter and then an amplitude or envelope detector. The detector produces a single-ended output proportional to the magnitude of the signal, and discards phase information.

Posted in: Application Briefs, RFM Catchall, Analysis methodologies, Radio equipment, Test equipment and instrumentation
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ARM-Based 32-Bit MCUs

STMicroelectronics (Geneva, Switzerland) has announced that the roadmap for its breakthrough STM32 family of 32-bit MCUs based on ARM® Cortex-MT processor cores will include new devices centered on the Cortex-M4 and the Cortex-M0 cores from ARM. In addition, ST also announced the availability of its new STM32 F-2 series MCUs that unleash the performance of the Cortex-M3 core. The Cortex-M4 from ARM is an upwardly compatible version of the Cortex-M3, offering DSP instructions and a Floating Point Unit (FPU). The core will be used in new high-performance variants of STM32 products to be sampled in 2011. ST's new STM32 F-2 microcontroller series combines ST's advanced 90nm process technology with the company's innovative Adaptive Real-Time memory accelerator (ART AcceleratorT) to unleash the Cortex-M3 core's maximum processing performance.

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3-Axis Acceleration Sensor

Saelig Company, Inc. (Pittsford, NY) has introduced JoyWarrior24F14, a high-resolution USB-connected 3-axis acceleration sensor with 125μg sensitivity. The new USB-powered JoyWarrior24F14 offers acceleration resolution down to 125μg. JoyWarrior24F14 modules are based on a MEMS sensor and measure with 14-bit resolution in the ranges ±1g, ±1.5g, ±2g, ±3g, ±4g, ±8g, or ±16g, delivering 125 results per second. Because JoyWarrior24F14 enumerates and works as a joystick, accessing the data can be easily done via the operating system's joystick API without installing any specific drivers. The included software operates on Windows and MacOS X platforms and contains a configuration tool to set the sensor parameters, with tilt angle measuring, a calibration tool, and a simple data recorder. Small size (30 x 33 x 5mm) and a low mass (

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PCIe/104 Single Board Computer

Kontron (Poway, CA) has introduced the world’s first PCIe/104™ embedded single board computer (SBC) based on the Intel® Atom™ E600C processor series, pairing an Intel Atom E600 series processor with an Altera Field Programmable Gate Array (FPGA) in a single package. The Kontron PCIe/104 MICROSPACE(R) MSMST is equipped with the Intel Atom E600C processor series ranging up to 1.3 GHz with up to 2 GB onboard DRAM system memory. All components are validated for the extended temperature range from -40 °C to +85 °C. The power optimized Intel Graphics Media Accelerator (Intel GMA 600) with up to 128 MByte, 18/24 Bit LVDS and SDVO interface is integrated in the processor. Video signals are carried out by optional media boards for VGA or DVI. Optional SPDIF (out) and two analog stereo connections for line-out and mic-in take care of the high-definition audio signals.

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Programmable Logic Controller

The new Vision1040™ PLC and integrated HMI from Unitronics (Quincy, MA) allows machine manufacturers and system integrators to add both a brilliant 10.4” color touch-screen equipped with 9 programmable function key display, and full PLC functionality to their systems. The memory holds 2MB of application logic, plus 1MB for fonts and 80MB for images. Features include Micro SD card memory storage for data logging and backup, complete PLC cloning and more. The controller can scan 1K of a typical application in 9μsec. Communication options include TCP/IP Ethernet, cellular, and industrial protocols such as MODBUS, DF1 slave, J1939, and CANopen.

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Temperature Effect on Drop-Weight Impact of Hybrid Woven Composites

The main idea of composite material is to combine different materials to produce a new material with performance unattainable by the individual constituents. It gives flexibility to the designer to tailor the new material with properties to obtain peak performance for a particular application.

Posted in: Briefs, Materials, Design processes, Composite materials, Materials properties
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Synthesis of Long-Chain-Branched (LCB) Polysulfones for Multifunctional Transport Membranes

Increasing numbers of technologies are based on the idea of harnessing charge transport for useful processes such as energy harvesting, actuation, and sensing. Although much progress exists based on perfluorosulfonated platforms, new and more complicated parameters arise as applications require multifunctionality in engineering materials. For instance, in addition to using lightweight, durable, stable, high-conductivity proton-exchange membranes in a fuel cell, it may be desirable to have the energy source bear load and operate as a structural installment. The most prevalent class of materials potentially capable of such a tradeoff is rubbery “salt-in-polymer” electrolytes that employ polymer segmental motion for transport of free ions from co-dissolved salts.

Posted in: Briefs, Materials, Fabrication, Conductivity, Elastomers, Electrolytes
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