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Shaft Voltage Tester

The AEGIS® CAT II/III Shaft Voltage Tester™ digital oscilloscope from Electro Static Technology (Mechanic Falls, ME) enables testing of industrial motors controlled by variable frequency drives (VFDs). The tester is designed and configured to take and capture voltage measurements from the spinning shafts of motors. The digital oscilloscope comes with a conductive microfiber-tipped probe, a probe holder with magnetic base, and a carrying case. The 2-channel, full-function, 100-MHz oscilloscope has a 5.7" TFT LCD color display, a multi-language user interface, and a 5-hour rechargeable/replaceable lithium-ion battery pack. The oscilloscope is capable of sampling rates of 1 GSa/s to 50 GSa/s, and has a USB port for data transfer or flash drive storage.

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RF Signal Generators

Saelig Co. (Fairport, NY) announced Rigol DSG800 RF signal generators with output frequencies from 9 kHz to 3.0 GHz. They provide an RF signal source with a maximum output of +20 dBm and frequency resolution of 0.01 Hz at any frequency. Featuring SSB noise of -115 dBc/Hz, they feature a stable internal clock for creating RF test signals. The instruments provide conventional sweep functions (step, list, logarithmic, and linear) as well as analog modulation functions including amplitude modulation, frequency modulation, phase modulation, and pulse modulation. They also offer an optional pulse train generation capability for translating serial data onto an RF link without additional hardware. The pulse train can be used as the modulating signal of pulse modulation, and can also be output as an independent pulse generator.

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Robotic Drones to 'Print' Emergency Shelters

Researchers from the University of Bath, Imperial College, and University College London have developed robotic drones designed to "print" emergency shelters. The flying robots will autonomously assess and manufacture building structures to help areas suffering from natural disasters.

Posted in: News, Rapid Prototyping & Tooling

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The Fourth Revolution in Manufacturing

The fourth industrial revolution, or Industry 4.0, is all about going digital. But the term – and the basic idea behind it – are not new. First used in 2011 at Hannover Fair in Germany, the term Industry 4.0 originates from a question posed by the German government to its country’s manufacturing industry leaders: What is the next stage of evolution for manufacturing?

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Design Tips For Using Coatings

When designing parts for coatings, there are some things you’ll want to take into account. Even the most impeccably designed parts sometimes face problems during the coating process. By following a few basic design tips, you can avoid potential issues down the road. Read our white paper to learn more.

Posted in: White Papers, Coatings & Adhesives

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Method for Fabricating Metallic Panels with Deep Stiffener Sections

This method is a rapid, more environmentally friendly, cost-effective process. Langley Research Center, Hampton, Virginia This innovation integrates existing highperformance metallic materials and manufacturing technologies (all of which are now certified and used to produce thinner stiffened panels for launch vehicle structures) in a novel manner to allow fabrication of more structurally efficient panels with stiffeners that are substantially deeper than existing plate stock materials.

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Robust, High-Temperature Containment Cartridges for Microgravity

Other potential applications include chemical processing, heat pipes, power generation equipment, nuclear components, and automotive. Marshall Space Flight Center, Alabama Robust, high-temperature containment cartridges are needed for processing materials science experiments in microgravity. In general, the refractory metals (Nb, Ta, Mo, W, Re) possess the chemical inertness and high melting temperatures desired. Of these materials, niobium and tantalum alloys have been the materials of choice due to their low ductile to brittle transition temperatures, which allow deep-draw forming into cylindrical shapes. The high cost of tantalum and niobium, along with the desire for cartridges resistant to molten zinc and usable to 1,500 °C, demonstrates the need for alternative cartridge materials. Two candidate materials are molybdenum and tungsten alloys. Both have high melting temperatures and cost an order of magnitude less than tantalum and niobium.

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