Features

Product of the Month: September 2014

Dewetron, Wakefield, RI, has introduced the TrendCorder series of instruments designed for basic data acquisition applications in industry. They feature intuitive, multi-touch operation, enabling them to be operated 100% by touch, including alphanumeric entry, channel setup, and display configuration. When the instrument is turned on, an app loads and shows incoming data immediately. The DejaVIEW™ feature enables a user to scroll back on the recorder graph to any place in the recording, and pinch/zoom on the graph to see any detail, no matter how far back in time, without interrupting current recording. This is designed for operators conducting long-term testing that cannot be interrupted. The instruments feature a 15.4" wide aspect multi-touch display, and data is streamed continuously to disk at rates up to 200 MB/s. The TrendCorder has four slots for TRION series plug-in modules. Three 6-channel modules are included in the TRC-18, with one slot free; the TRC-6 has one 6-channel module, with three slots free. The system weighs 18.7 pounds, including the input modules.

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Scott Jensen, Aerospace Technologist (AST) Electronics Engineer, Stennis Space Center, Mississippi

Scott Jensen and his team developed the Valve Health Monitoring System (VHMS), a technology designed for detecting deterioration in the mechanical integrity of high-geared ball valves and linearly actuated valves. Beyond valve monitoring, the technology has also been effective at performing real-time verification for structural integrity of hydrogen barge dock facilities.

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20W High Density DC-DC Converters

Artesyn Embedded Technologies (Tempe, AZ), formerly Emerson Network Power's Embedded Computing & Power business, has announced the new AXA series of compact 20W high power density DC-DC converters. Artesyn AXA series modules cover an ultra-wide 4:1 input voltage range of 9 to 36 VDC and 18 to 75 VDC. The first models available offer single output models with voltages of 3.3, 5, 12, 15 and 24V along with dual output models offering +/- 12 or 15V, all with tight output voltage regulation. Enclosed in a 1.0 x 1.0 x 0.4 inch (25.4 x 25.4 x 10.16 mm) package, the Artesyn AXA series offers up to 89 percent efficiency. http://www.artesyn.com/power/power-supplies/cat/78/1-x-1-inch-low-power-isolated-dc-dc-converters

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Fanless Transportation Computers

Kontron (Poway, CA) has launched TRACe™, its new family of operational computers designed specifically for the transportation market. The first platform is the TRACe™ B304-TR, which is an EN50155-certified fanless transportation computer designed to make customization easy to meet application-specific requirements. The TRACe™ family benefits from the inherent flexibility advantages of Kontron's COM Express® Computer-on-Module (COM) that features the Intel® Atom™ E3845 processor with up to quad core 1.91 GHz performance. The second member of the family is the Kontron TRACe™ V304- TR, which is an EN50155-certified and tested fanless Network Video Recorder (NVR) that can record and transmit H.264 video streams making it ideally suited for rolling stock IP video surveillance. http://www.kontron.com/industries/transportation/products/trace---intelligent-transportation-computer

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Connectors

LEMO (Rohnert Park, CA) has added a new connector size to its M Series. The new MM connectors are the most compact in the lightweight M Series product line. The MM connectors are available with 3 or 4 contacts and are some of the smallest IP68 connectors that LEMO offers. With this very small connector, LEMO completes the M series range of connectors for the automotive / racing / aerospace market by offering connectors suitable for cable diameters 2 to 27mm and contact configurations from 2 to 114 contacts. MM Plugs and cable mount sockets come with LEMO's signature ratchet-coupling shells and offer excellent weight and space savings with superior environmental protection. http://www.lemo.com/en

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Raspberry Pi Model B Enclosure

Hammond Manufacturing (Cheektowaga, NY) has developed a new molded enclosure specifically designed to house the Raspberry Pi Model B credit card sized computer. The 1593HAM is available in translucent blue, grey and black. The Raspberry Pi board clips into the base and, in turn, the top half of the enclosure then clips into the base. A catch secures the assembly and allows the case to be easily opened if required. All I/O capability is directly accessible without having to modify the enclosure. The camera module can be fitted through a slot in the top, or it can be screwed to the inside of the top cover with a hole provided for the lens. A cut out in the split line between the two halves of the case provides access to the GPIO header. Two USB ports, the RJ45 LAN port, the SD carrier, the audio and video RCA ports, the micro USB power-in connector and a HDMI interface are all accessible through apertures of the correct size and shape in the sides of the enclosure. http://www.hammondmfg.com/1593HAM.htm#RaspPi

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Three Things You Can’t Measure if Your Oscilloscope Doesn’t Have Enough Memory

Modern oscilloscopes come equipped with a host of different attributes, and many vendors tout their latest additions as “must have” features. With so many attributes and marketing messages, recalling the importance of a long-held attribute such as memory depth can become lost in the noise. However, any engineer who has grappled with shallow memory on an oscilloscope will be vocal about the frustration of the experience. Those who aren’t vocal simply haven’t stumbled on an issue that required it — yet.

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